Construction Noise and Vibration Delivery Work Plan

Mt Eden Enabling Works

Construction Noise and Vibration Delivery Work Plan

CRL-MTE-RME-LKA-PLN-800016

Revision: 001

Date: January 2019

Mt Eden Enabling Works Construction Noise and Vibration Delivery Work Plan

CRL-MTE-RME-LKA-PLN-800016

This document is uncontrolled when printed This document should be printed in colour

Revision Status

Rev A00 27/9/2019 Draft for Community Liaison

and Mana Whenua

Rev A01 29/10/2019 Draft for Auckland Council and Independent Peer Review

Rev 000 03/12/2019 Final for Submission

Rev 001 16/01/2020 Update to address Auckland Council recommendations

Approval Status

1. Introduction

The City Rail Link (CRL) project comprises the construction, operation and maintenance of a 3.4 km underground passenger railway, running between Britomart Station and the North Auckland Rail Line (NAL) in the vicinity of Mt Eden Station. The CRL involves the construction of two new underground stations at Aotea and Karangahape, and a redeveloped station at Mt Eden (refer to Figure 1-1). The design and construction of the CRL infrastructure between Aotea and Mt Eden Stations is being delivered by the Link Alliance.

This Construction Noise and Vibration Delivery Work Plan (CNV DWP) has been prepared in relation to the Mt Eden Enabling Works (“the Project”).

1.1 Overview of CRL works in Mt Eden

The CRL works in the Mt Eden area involve the construction of the southern section of the tunnel structures and the tie-in to the existing NAL, including the construction of the redeveloped Mt Eden Station. The Mt Eden Active Construction Zone (ACZ) and Construction Support Area (CSA) is generally located between Nikau Street to the north, State Highway 1 (SH1) to the east, Dominion Road to the west and the existing NAL to the south.

The works in this area include:

• Construction of an underground grade separation structure near Mt Eden Station;

• A new Mt Eden Station building incorporating passenger linkages;

• Modifications to the existing Mt Eden Station platforms;

• Road over rail bridges at Mt Eden Road, Normanby Road and Ruru Street with sections of road realignment;

• Grade separation structures for the existing and new rail lines to pass-over and connect with each other;

• Pedestrian and cyclist bridge structures at Fenton Street and Porters Avenue; and

• New road linkages within the reinstated area post-construction.

Given the nature and scale of CRL works in Mt Eden, construction will be undertaken in a staged manner.

This CNV DWP relates to the first stage of these works (the Mt Eden Enabling Works), as described in Section 2 below.

Following completion of the Project, works in this area will involve:

• Main construction works – these works will include: Tunnel Boring Machine (TBM) operations, structure construction and waterproofing/tanking for cut and cover tunnels, utilities installation, retaining wall for Ruru street extension, construction of the rail line tieins including junctions and grade separation structures, realignment of the existing Western Line including platform reconstruction, grade separation of Normanby Road, pedestrian / cyclist bridges at Fenton and Porters, construction of the new station buildings. The Main Works will be undertaken from Mid 2020 through to 2024.

• Public realm reinstatement – these works will involve establishing the final finishings and features that will comprise the completed Mt Eden Station and surrounds and will likely to be undertaken from 2021 to first quarter-2024

1.2 Purpose of the Construction Noise and Vibration Delivery Work Plan

This CNV DWP has been prepared to identify measures that will be implemented to mitigate and manage the potential adverse effects on nearby receivers during the Mt Eden Enabling Works The objective of the CNV DWP is to provide for the development and implementation of the best practicable option to avoid, remedy or mitigate the adverse effects on receivers of noise and vibration resulting from the Mt Eden Enabling Works

This CNV DWP addresses the requirements of CRL designation conditions 31 - 40 and will be implemented throughout the construction period.

This CNV DWP has been prepared in consultation with the Mt Eden Community and Business Liaison Group (CLG) and reviewed by Independent Peer Review (IPR) prior to submission to Auckland Council (as per designation conditions 7 and 11).

1.3 Relevant conditions

Table 1-1 identifies the designation conditions relevant to this CNV DWP and where they are addressed in the document.

Table 1-1: Conditions and location in Plan

16.1 A SSCNVMP shall be prepared for all Notable Noise and Vibration Receivers (refer Condition 39) As part of the SSCNVMP (and further to Condition 15 of this designation), the Requiring Authority shall undertake communication and consultation, as soon as reasonably practicable (and at least once following

confirmation of construction timing and methodology), with any Notable Noise and Vibration Receivers located within 200 metres of blasting, or within 100 metres (either horizontally or vertically) of the designation footprint for other construction activities Communication and consultation with these parties should focus on a collaborative approach to manage the adverse effects from construction noise and vibration while works are undertaken in the vicinity

16.2 The Requiring Authority shall undertake on-going communication and consultation with notable noise and vibration receivers throughout the duration of construction occurring in the vicinity This communication shall be reported back to the “key contacts” (see Condition 13) and the Auckland Council Consent Monitoring officer for their review and confirmation of any further action to be undertaken. The Auckland Council Consent Monitoring Officer shall advise the Requiring Authority of its recommendation within 10 working days of receiving this information from the Requiring Authority.

31 Project Standards – Construction Noise

31.1 Construction noise shall comply with the following Project Standards (unless otherwise provided for in a SSCNMP which is approved under Condition 37, 39 or 40):

Receiver Type

Occupied commercial and industrial buildings (including offices)

Sensitive Noise and Vibration

5.1

Monday to Saturday 0700 – 2200

Sundays and Public Holidays 0700 – 2200

At all other times 2200 – 0700

Early Childhood Education Centres (whilst occupied during normal opening hours) 35 dB LAeq in sleeping areas

Bear Park Early Childhood Education Centre at 32 Akiraho Street (whilst occupied during normal opening hours)

Notes:

1. 60 dB LAeq for NoR 5 and NoR 6; and 2. 75 dB LAFmax for NoR 5 and NoR 6.

dB LAeq in sleeping areas

dB LAeq in outdoor playing areas

31.2 Construction noise shall be measured and assessed in accordance with the provisions of NZS 6803:1999

32 Project Standards - Blasting Overpressure and Vibration

32.1 Prior to commencement of production blasts (i.e. blasting that is undertaken as part of the construction process), trial blasts (i.e preliminary blasts that occur prior to production blasts for the purpose of data acquisition), shall be undertaken to demonstrate how adverse effects will be managed and how compliance with Conditions 32.2, 32.3 and 32.4 will be achieved in production blasting. Trial blasts will determine site-specific attenuation characteristics, air overpressure levels and maximum instantaneous charge weight (MIC) thresholds Outcomes shall be documented in a Trial Blasting Report This Trial Blasting Report shall be used for subsequent design of production blasting

32.2 Air overpressure from the blast events shall not exceed 120 dB LZpeak at the facade of any occupied building measures and assessed in accordance with the provisions

Section 5.1

Section 5.3

Section 5.3

of the Australian Standard AS 2187.2-2006 Explosives – Storage and use – Use of explosives.

32.3 Air overpressure from blast events shall not exceed 133 dB LZpeak at the facade of any unoccupied building measured and assessed in accordance with the provisions of Australian Standard AS 2187.2-2006 Explosives – Storage and use – Use of explosives.

32.4 Unless a SSCNVMP is approved under Conditions 38, 39 or 40 which includes an alternative blasting vibration standard:

(a Vibration from blast events shall not exceed 10mm/s PPV for 95% of blast events and 15mm/s for 100% blast events when measured at the foundation of any building that will be occupied during the blast event when measured and assessed in accordance with the provisions of DIN 4150-3:1999.

(b) Vibration from blast events shall not in any case exceed the limits specified in Condition 33 when measured at the foundation of any building when measured and assessed in accordance with the provisions of Condition 33.

32.5 For the purposes of 32.2 and 32.3, a building is deemed to be occupied if there are persons inside only during the blast event (i.e. if the occupants of a dwelling are out (e.g at work) during the blast event then the dwelling is deemed to be unoccupied).

32.6 Blasts must be performed at set times during the daytime only, between 9am and 5pm, Monday to Saturday only.

32.7 Comprehensive vibration and air overpressure level predictions must be performed prior to every blast event.

32.8 Blasting shall not be carried out where overpressure levels are predicted to be above the Project Standards in 32.1 and 32.2 at any building Blasting shall not be carried out where vibration levels are predicted to be above the project standards in Condition 32.4 at any building.

32.9 These criteria may be varied only by a Site Specific Construction Noise Management Plan (SSCNMP) that has been approved under Condition 37.

33 Project Standards - Construction Vibration

33.1 Construction vibration (including blasting) shall comply with the following Project Standards for building damage (unless otherwise provided for in a SSCVMP which is approved under Condition 38, 39 or 40)

Type of Structure

Short-term (transient) vibration1 Long-term (continuou vibration

PPV at the foundation at a frequency of PPV at horizontal plane of highest floor (mm/s) PPV at horizontal plane of highest floo (mm/s) 1-10Hz (mm/s) 10-50Hz (mm/s) 50-100Hz (mm/s)

Section 5.3

Section 7.2

Section 5.3

Section 5.3

Noted

Note:

1. Standard DIN 4150-3:1999 defines short-term (transient) vibration as “vibration which does not occur often enough to cause structural fatigue and which does not produce resonance in the structure being evaluated” Long-term (continuous) vibration is defined as all other vibration types not covered by the short-term vibration definition.

33.2 Construction vibration (including blasting) shall be measured in accordance with German Standard DIN 4150-3:1999.

34 Project Standards - Construction Vibration (Amenity)

34.1 Between the hours of 10pm and 7am vibration generated by construction activities (excluding blasting) shall not exceed:

(a) a Peak Particle Velocity (PPV) of 0.3mm/s when measured at any part of the floor of any bedroom;

(b) a noise level of 35 dB LAeq (15min) when measured in any bedroom.

34.2 Between the hours of 7am and 10pm vibration generated by construction activities (excluding blasting) shall not exceed:

(a) A Peak Particle Velocity (PPV) of 1mm/s as measured on the floor of the receiving room for residentially occupied habitable rooms, bedrooms in temporary accommodation and medical facilities; and

(b) A Peak Particle Velocity (PPV) of 2mm/s as measured on the floor of the receiving room for retail and office spaces (including work areas and meeting rooms);

34.3 The limits in 34.1 and 34.2 shall only be investigated and applied upon the receipt of a complaint from any building occupant They shall not be applied where there is no concern from the occupant of the building.

34.4 Where the limits in 34.1 and 34.2 are found (through measurement) to be exceeded then a SSCVMP shall be prepared for that receiver (Condition 38).

35 Project Standards – MediaWorks

35.1 The noise and vibration limits set out in Conditions 35.2 and 35.3 shall apply only during Sensitive Times. For the purposes of MediaWorks, Sensitive Times are defined as follows:

(c) During scheduled live broadcasting

(d) During emergency/breaking news live broadcasting

(e) During scheduled recording sessions

If the limits are complied with in Studio 1, the noise and vibration levels in all other Studios will be acceptable.

For the avoidance of doubt, (a)-(c) above include sound checks as well as actual broadcast/recording time.

35.2 Noise Limits – Studios

The noise level (whether air borne or reradiated from ground vibration) from all construction sources as received inside Studio 1 shall not exceed 30 dB LAeq (5 min) and 33 dB LAeq (1 sec). These limits apply to the construction component of the total noise However for up to two periods of tunnelling, each no more than 15 consecutive days, the noise limits may be up to 5 decibels higher (ie. 35 dB L Aeq (5 min) and 38 dB LAeq (1 sec)) during Sensitive Times, other than during the Live Broadcasting Periods as follows:

Section 5.2

Section 5.2

Section 5.2

Section 5.2

Section 5.2

(f) Weekdays:

0600-0900 hours

1200-1230 hours

1730-1930 hours

2230-2330 hours

(g) Christmas holiday season (Saturday prior to Christmas Day to Sunday following New Years Day inclusive) and weekends:

1730-1900 hours

The Requiring Authority must give MediaWorks at least 12 days notice of the commencement of each such period.

35.2A Rockbreaking shall not be used for tunnel excavation within 100m of the MediaWorks site during Sensitive Times unless compliance with the noise limits in Condition 35.2 can be demonstrated in accordance with the methodology set out in the SSCNVMP.

35.3 Vibration Limits – Studios

For the protection of studio camera image quality, the construction vibration level (including blasting) as received inside Studio 1 shall not exceed 0.1mm/s PPV This limit may be elevated by agreement of both the Requiring Authority and MediaWorks where image quality is found to be unaffected.

35.4 Noise level measurements inside Studio 1 shall be undertaken at a position that is representative of the level received within 2m from, and at a similar height to, the microphone of the main presenter(s).

35.5 Noise level measurements inside Studio 1 shall be undertaken with all doors to the studio closed.

35.6 For the protection of amenity, the construction vibration level as received inside office areas, meeting rooms and technical suites shall not exceed 1mm/s PPV (as received on the floor of the receiving room) when those spaces are in use.

35.7 For the protection of sensitive equipment, the construction vibration level (including blasting) shall not exceed 200mg (2m/s2) between 5-500Hz. Levels are to be measured on the floor supporting the Sensitive Equipment.

35.8 All attended noise and vibration measurements shall be undertaken by a suitably qualified and experienced expert.

35.9 For the avoidance of doubt, the MediaWorks conditions (Conditions 35, 40 and 66) only apply for so long as television, radio and/or interactive media facilities broadcast from the MediaWorks site.

35.10 Blasting shall not occur during MediaWorks Sensitive Times (as defined in Condition 35.1) Blasting shall occur at times to be agreed with MediaWorks and as documented in the SSCNVMP.

36 Construction Noise and Vibration DWP

For the avoidance of doubt, this condition is applicable to the management of construction noise and vibration on all receivers, including sensitive and notable receivers.

36.1 A Construction Noise and Vibration DWP shall be prepared and implemented The objective of the Construction Noise and Vibration DWP is to provide for the development and implementation of identified best practicable option to avoid,

Section 5.4

Section 5.4

Section 5.4

Section 5.4

Section 5.4

Section 5.4

Section 5.4

Section 5.4

This DWP

remedy or mitigate the adverse effects on receivers of noise and vibration resulting from construction

36.2 The Construction Noise and Vibration DWP shall:

a) Adopt the noise and vibration standards for construction set out in Conditions 31, 32, 33 and 34 of these designations;

b) Be generally consistent with the draft Construction Noise and Vibration management plan submitted as part of the Notice of Requirement documentation (dated 23 August 2013); and

c) Identify methods to achieve best practicable option for mitigating adverse effects. This DWP

36.3 To achieve this objective, the Construction Noise and Vibration DWP shall include:

a) The roles and responsibilities of the noise and vibration personnel in the contractor team with regard to managing and monitoring adverse noise and vibration effects;

b) That piling and road cutting will be restricted to between the hours of 7am to 7pm, Monday to Saturday;

c) Construction machinery and equipment to be used and their operating noise and vibration levels;

d) Identification of construction activities that are likely to create adverse noise and vibration effects, the location of these in the construction site areas, and the distance to comply with the Project Criteria in Conditions 31, 32, 33 and 34;

e) The timing of construction activities that are likely to create an adverse noise and vibration effect;

f) The location of sensitive noise and vibration receivers;

g) A record of communication and consultation with sensitive noise and vibration receivers. The record must include a clear explanation of where any comments from sensitive receivers have not been incorporated in the Construction Noise and Vibration DWP, and the reasons why not. This information must be included in the Construction Noise and Vibration DWP provided to both the Independent Peer Review Panel and Auckland Council as part of the Outline Plan process specified in Condition 11;

h) Specific measures to address the concerns raised by those sensitive receivers;

i) Specific training procedures for construction personnel including;

I. The project noise and vibration performance standards for construction (conditions 31, 32, 33 and 34);

II. Information about noise and vibration sources within the construction area and the locations of sensitive noise and vibration receivers; and

III. Construction machinery operation instructions relating to mitigating noise and vibration;

j) Methods and measures to mitigate adverse noise and vibration effects including, but not limited to, structural mitigation such as barriers and enclosures, the scheduling of high noise and vibration construction, use of low noise and vibration machinery, temporary relocation of affected

Section 4

Section 7.2

Section 6.1

Section 6

Section

Section 3

Appendix C

Appendix C

Section 7.1

Section 7

receivers or any other measures or offer agreed to by the Requiring Authority and the affected receiver;

k) The proposed methods for monitoring construction noise and vibration to be undertaken by a suitably qualified person for the duration of construction works including:

i. Updating the predicted noise and vibration contours based on the final design and construction activities;

ii. Confirm which buildings are to be subject to a pre and post building condition survey in accordance with Condition 46 This includes consideration of those buildings in Appendix One and Two to these conditions;

iii. The timing and location for monitoring of buildings during construction is required (Note that the flow charts contained in Appendices B and C of Appendix J of the technical noise and vibration report provided as part of the Notice of Requirement should be used as a guide);

iv. Identifying appropriate monitoring locations for receivers of construction noise and vibration;

v. Procedures for working with the Communication and Consultation Manager to respond to complaints received on construction noise and vibration, including methods to monitor and identify noise and vibration sources;

vi. Procedures for monitoring construction noise and vibration and reporting to the Auckland Council Consent Monitoring officer; and

vii. Procedures for how works will be undertaken should they be required as a result of the building condition surveys; Section 9

l) Cross references to the specific sections in the Communication and Consultation Plan which detail how landowners and occupiers are to be communicated with around noise and vibration effects.

37 Site Specific Construction Noise Management Plan (SSCNMP)

37.1 The objective of a SSCNMP is to detail the best practicable option to avoid, remedy or mitigate adverse effects on a receiver resulting from construction noise that does not comply with the Project Noise Standards.

37.2 Further to the Construction Noise and Vibration DWP in Condition 36, a SSCNMP shall be prepared for any receiver or activity for which air overpressure is either predicted or measured to exceed the limits in Condition 32, or where construction noise is either predicted or measured to exceed the Project Noise Standards in Condition 31, except where the exceedance of the standards in Condition 31 is less than 5 decibels and does not exceed:

a) 0700-2200: 1 period of up to 2 consecutive weeks in any 2 months

b) 2200-0700: 1 period of up to 2 consecutive nights in any 10 days.

37.3 For predicted exceedances of less than 5 decibels (refer 37.2) monitoring shall be undertaken to confirm the actual noise levels If exceedance is shown to be more than 5 decibels, or the period exceeds those detailed, then a SSCNMP will be prepared.

Noted

Noted

37.4 In addition to the SSCNMPs prepared in accordance with Condition 37.2, and notwithstanding Condition 37.1, the Requiring Authority shall prepare SSCNMPs N/A

specifying the best practicable option for management, methods and measures to mitigate all noise effects for the properties located at:

a) 1 Queen Street (Lot 1 DP 165403);

b) 21 Queen Street (Lot 1 DP 67723);

c) 29 Customs Street West (Lot 7 DP 77037)

d) 188 Quay Street (Lot 5 DP 63972 and Lot 1 DP 78340); and

e) 23-29 Albert Street (Lot 1 DP 116724).

37.5 SSCNMPs will identify:

a) The extent to which noise may exceed the Project Noise Standards in Condition 31 or the overpressure limits in Condition 32;

b) The timing and duration of any exceedance;

c) Details of the type of activity causing any exceedance;

d) The summary of the communication and consultation undertaken with the receiver The summary must include a clear explanation of where any comments have not been incorporated, and the reasons why not. This information must be included in the SSCNMP provided to both the Independent Peer Review Panel and Auckland Council as part of the Outline Plan process specified in Condition 11;

e) The methods and measures to mitigate noise effects, including but not limited to, potential to offer temporary relocation of affected receivers, alternative ventilation, façade sound insulation improvements, building condition surveys in the case of overpressure generated by blast events, or other offers made by the Requiring Authority and whether these have been agreed to by the affected receiver;

f) The reasons why the management and mitigation measures and methods reflect best practicable option. Appendix C

37.6 The SSCNMP shall be submitted for the review of Auckland Council as part of the Outline Plan The works shall then be undertaken in accordance with the SSCNMP confirmed by the Requiring Authority as part of the Outline Plan.

38 Site Specific Construction Vibration Management Plan (SSCVMP)

38.1 The objective of a SSCVMP is to detail the best practicable option to avoid, remedy or mitigate adverse effects on a receiver resulting from vibration that does not comply with the Project Vibration Standards. Noted

38.2 Further to the Construction Noise and Vibration DWP in Condition 36, a SSCVMP shall be prepared:

a) For any unoccupied buildings, structure or infrastructure for which construction vibration is either predicted or measured to exceed the Project Vibration Standards in Condition 33;

b) Where a complaint or concern is raised and the vibration level exceeds the amenity levels of Condition 34.2(a) and 34.2(b);

c) In response to other concerns or complaints where required (refer to Condition 17); and

d) For the properties listed in Condition 37.4. Appendix C

38.3 Where the amenity limits in Conditions 34.2(a) and 34.2(b) are exceeded:

a) Best practicable management of vibration must be applied; and

Appendix C

b) The vibration activity shall be scheduled to avoid disturbance If this is not practicable then reasonable respite periods shall be provided to reduce vibration exposure.

38.4 The limits in condition 33 may be relaxed by a SSCVMP but only for a building, structure or infrastructure that has been assessed by a suitably qualified and experienced structural engineer and where it has been deemed to be capable of withstanding higher vibration levels without sustaining building or structural damage, and where appropriate vibration and building condition monitoring regimes are in place.

38.5 SSCVMPs will identify:

a) The timing and duration of any exceedance;

b) Details of the type of activity giving rise to any exceedance;

c) Site Specific vibration criteria that addresses the issue(s) of concern (i.e building damage, amenity and sensitive equipment) Site Specific criteria shall be determined by a suitably qualified independent vibration expert;

d) The summary of the communication and consultation undertaken with the receiver The summary must include a clear explanation of where any comments have not been incorporated, and the reasons why not. This information must be included in the SSCVMP provided to both the Independent Peer Review Panel and Auckland Council as part of the Outline Plan process specified in Condition 11;

e) The methods and measures to mitigate vibration effects, including but not limited to, investigating alternative low-vibration construction methods, undertaking high-vibration works outside sensitive times, vibration barriers, building condition surveys, potential to offer temporary relocation of affected receivers, or other offers made by the Requiring Authority and agreed to by the affected receiver.

f) The reasons why the management and mitigation measures and methods reflect best practicable option.

38.6 The SSCVMP shall be submitted for the review of Auckland Council The works shall then be undertaken in accordance with the SSCVMP confirmed by the Requiring Authority as part of the Outline Plan.

39 Notable Noise and Vibration Receivers

For the avoidance of doubt, Conditions 39.5 and 39.6 do not apply to MediaWorks.

Appendix C

39.1 Further to Condition 36, the Requiring Authority and its contractor, in conjunction with a suitably qualified expert, shall work collaboratively with each notable receiver during the preparation of a SSCNVMP to confirm the extent and management of adverse effects on each Notable Receiver

39.2 In addition to the Construction Noise and Vibration DWP, a SSCNVMP shall be prepared for each identified Notable Receiver The objective of the SSCNVMP is to detail the best practicable option to avoid, remedy or mitigate adverse noise and vibration effects on each Notable Receiver.

39.3 The Requiring Authority shall consult with the notable receiver throughout the duration of construction and update the SSCNVMP as required to achieve the objective in 39.2

Appendix C

Appendix C

N/A – no notable receivers other than MediaWork s

39.4 The SSCNVMP shall include:

a) The level at which noise and vibration effects on the notable receiver will unreasonably interfere with its operation This will enable development of the site specific criteria In the case of MediaWorks this is set out in Condition 40;

b) Construction activities and equipment which are likely to create adverse noise and vibration effects and the location and timing of these in relation to the notable receiver;

c) The methods and measures associated with the worksite including, but not limited to, structural mitigation such as barriers and enclosures, use of low noise and vibration machinery and the scheduling of high noise and vibration construction;

d) The methods and measures associated with the notable receiver building or operation including, but not limited to, potential for isolation of sensitive areas and equipment, dampening of reradiating surfaces and temporary relocation of affected receivers that are proposed to minimise adverse noise and vibration effects on the notable receiver;

e) Details about the methods to be adopted by the Requiring Authority to minimise construction noise and vibration effects on the notable receiver and the anticipated effectiveness of those methods;

f) A summary of the communication and consultation undertaken with the notable receiver. The summary must include a clear explanation of where any comments have not been incorporated, and the reasons why not;

g) Offers made by the Requiring Authority to the notable receiver to mitigate effects and the response by the operators, such as relocation, and whether those offers were accepted or not by the notable receiver;

39.5 If the parties cannot agree on any of the matters above they shall each appoint a suitably qualified and independent expert, who shall jointly appoint an independent and suitably qualified third expert who shall certify the following matters to be included in the SSCNVMP:

a) The level at which noise and vibration effects on the notable receiver unreasonably interfere with its operation (the certified noise and vibration limit);

b) The mitigation methods and measures within the worksite (at source) including, but not limited to, structural mitigation such as barriers and enclosures, use of low noise and vibration machinery and the scheduling of high noise and vibration construction;

c) The mitigation methods and measures at the notable receiver including but not limited to: isolation of sensitive areas and equipment; dampening of reradiating surfaces; any response to such offers; and temporary relocation of affected receivers;

d) Whether or not the mitigation methods and measures reflect best practicable management; and

e) Whether or not the residual effects are likely to cause significant disruption to the activities of the notable receiver.

39.6 Following the above process the SSCNVMP shall be submitted for the review of Auckland Council as part of the Outline Plan. For the avoidance of doubt, the Requiring Authority shall not be entitled to make any changes to the SSCNVMP through the Outline Plan process following any agreement reached with the notable receiver and/or through the above certification process without the

consent of the notable receiver The works shall then be undertaken in accordance with the SSCNVMP confirmed by the Requiring Authority as part of the Outline Plan process

40 Construction Noise and Vibration Management Plan – MediaWorks

Further to Condition 36, a SSCNVMP shall be prepared for the MediaWorks site implementing the project standards in Condition 35.

40.1 The MediaWorks SSCNVMP shall identify high noise or vibration plant and machinery, and list the relevant items that require testing in accordance with Condition 40.4 and 40.8

40.2 Prior to any demolition or construction commencing, the Requiring Authority shall undertake a noise survey to determine the Transmission Loss (TL) performance of the MediaWorks building envelope This testing shall only be undertaken outside of Sensitive Times.

40.3 Prior to any demolition or construction commencing, the Requiring Authority shall undertake a vibration survey to determine the transfer function of the MediaWorks building structure from ground vibration outside the building to reradiated noise in Studio 1 This testing shall only be undertaken outside of Sensitive Times.

40.4 All high noise plant and machinery to be used at a location where it is predicted to generate noise levels in excess of 3 dB below the limits specified in Condition 35.2 shall be tested prior to use, to determine its Sound Power Level (Lw) at a sufficient distance from the MediaWorks building to ensure compliance. These measured Lws shall be used to predict the noise level at the MediaWorks building façade(s) from proposed construction scenarios. The façade TL (refer Condition 40.2) shall then be applied to predict the noise levels in the relevant rooms

40.5 All high noise plant and machinery may not be used until Condition 40.4 is satisfied, taking into account the cumulative noise levels from active sources on the site.

40.6 The Requiring Authority and its contractor, in conjunction with a suitably qualified expert, shall work collaboratively with MediaWorks during the preparation of a SSCNVMP to confirm the extent and management of adverse effects on MediaWorks.

40.7 The SSCNVMP shall set out the requirements for monitoring, the number of monitors, the instrument location, any adjustments necessary if a proxy position is required and any other procedures or requirements that are necessary The data shall be available in real time to the Requiring Authority, Auckland Council and MediaWorks.

40.8 Prior to the use of any high vibration equipment to be used at a location where it is predicted to generate vibration levels greater than 75% of the Condition 33-35 limits relating to the MediaWorks building, the Requiring Authority shall undertake vibration measurements at a sufficient distance from the MediaWorks building to ensure compliance These measurements shall be used to determine minimum set-back distances from the building to avoid potential exceedances of the vibration limits in Conditions 35.3, 35.6, 35.7 and 35.8 Reradiated noise values in Studio 1 shall be calculated using the measured transfer function, as required by Condition 40.3 The results of the testing and the outcomes affecting construction operations shall be set out in the SSCNVMP

Appendix C

Appendix C

Appendix C

Appendix C

Appendix C

Appendix C

Appendix C

Appendix C

40.9 The noise and vibration levels from construction shall be monitored to determine compliance with conditions 35.2 35.3, 35.6, 35.7 and 35.8 continuously by automated noise and vibration monitors located at positions that will represent the noise and vibration level in the relevant spaces and for the relevant noise and vibration limits. The SSCNVMP shall set out the requirements for monitoring, the instrument location, any adjustments necessary if a proxy position is required and any other procedures or requirements that are necessary including methods to exclude extraneous sources The data shall be available in real time to the Requiring Authority, Auckland Council and MediaWorks.

40.10 Monitoring to determine compliance or otherwise with Condition 35.6 relating to office amenity shall only be undertaken in response to complaints from MediaWorks The measurements must be attended by a suitably qualified person. Appendix C

40.11 The SSCNVMP shall set out corrective action measures that must be adopted in situations where any of the noise and vibration limits in Conditions 35.2, 35.3, 35.6, 35.7 and 35.8 are exceeded and where the noise and/or vibration levels are unacceptable to MediaWorks The corrective action measures must include the following:

(h) Immediate cessation of the work(s) that is giving rise to the exceedance;

(i) A procedure to require the implementation of whatever measures are necessary to reduce the noise or vibration levels;

(j) A monitoring procedure to determine compliance (once the remediation works are complete);

(k) A requirement to ensure that the work(s) responsible for the exceedance are not recommenced during Sensitive Times;

(l) A complaints procedure that is capable of effecting the immediate cessation of works including making a point of contact directly available 24 hours, seven days a week.

40.12 If there is a disagreement between the Requiring Authority and MediaWorks as to the content of the SSCNVMP, they shall each appoint a suitably qualified and independent expert, who shall jointly appoint an independent and suitably qualified third expert who shall certify the matters set out in Condition 40.11 and any other matters in dispute in the SSCNVMP

40.13 Following the above process the SSCNVMP shall be submitted for the review of Auckland Council as part of the Outline Plan For the avoidance of doubt, the Requiring Authority shall not be entitled to make any changes to the SSCNVMP through the Outline Plan process following any agreement reached with MediaWorks and/or through the above certification process without the consent of MediaWorks The works shall then be undertaken in accordance with the SSCNVMP confirmed by the Requiring Authority as part of the Outline Plan process

1.4 Sustainability

Appendix C

Appendix C

The Link Alliance is seeking an Infrastructure Sustainability Council of Australia (ISCA) Infrastructure Sustainability (IS) Rating. Further details can be found in the CEMP and Sustainability Rating Management Plan. Project sustainability requirements that relate directly to this CNV DWP are included in Appendix A These requirements are imbedded within the Delivery Work Plans and management plans for the Mt Eden Enabling Works to ensure that sustainability is a key focus and ‘the way we do things’

In some cases, the IS requirements and sustainability goals enhance the designation and consent requirements.

1.5 DWP review and updates

This CNV DWP is a live document that will be reviewed and updated at least annually, or as a result of a material change to the Mt Eden Enabling Works, or to address unforeseen adverse contamination effects arising from construction, or unresolved complaints. Refer to the CEMP for further detail on the review and updating process.

2. Project description

In order to launch the TBM and commence construction of the CRL tie-ins to the NAL, a range of ‘enabling’ works are proposed, which are the subject of this CNV DWP These works are described in detail in the CEMP.

In summary, the Mt Eden Enabling Works involve:

• Continuation of the demolition and clearance of the Mt Eden CSA (these works are authorised under the Mt Eden Demolitions Outline Plan)

• Set up of a temporary site office, which is anticipated to be a 2-3 storey modular building (likely made up of containers) located in the western extent of the CSA.

• Piling and excavation associated with the preparation of the portal. This will involve the demolition of the redundant stormwater shaft located in the portal area; the installation of bored piles and associated works (ground anchors and shotcrete) to support the excavation face; and removal of spoil.

• Bulk excavation to form what will become the rail trenches/cut and cover tunnels, which will also provide a ramp for the TBM to be manoeuvred into position. The excavation will encounter basalt, which is to be blasted in order to expedite the works and minimise the amount of rock-breaking required. In places, softer ground conditions are anticipated to be encountered, which may require the use of sheet piles.

• Local mined tunnelling to facilitate the TBM launch.

• Construction of the additional Mt Eden Road bridge (north of the existing bridge), including temporary diversion of shallow utilities in this location

• Construction of the Ruru Street bridge, including diversion of the Huia 2 watermain in this location.

• Temporary and permanent utility diversions (such as water, wastewater, stormwater, Vector overhead cables and ducting, gas and communications) along Fenton Street, Porters Avenue, Haultain Street and Wynyard Street to provide adequate clearance between the Huia 2 watermain and NAL, associated retaining walls, and the proposed Fenton Street pedestrian bridge.

2.1 Construction methodology

The Project will be divided into stages as described in the CEMP.

3. Receivers and building types

The relevant receiver types (noise) and building types (vibration) are summarised in Figure 3-1 and Table 3-1

1 Based on known occupancies

2 Based on known heritage status and structural engineer preliminary recommendation (note that residential occupancy does not automatically correlate to residential structure categorisation and may be updated upon further investigation as appropriate)

3 Refer Studio 1 specific requirements set out in Section 5.4 and addressed in Appendix C1

4. Key personnel

The key personnel responsible for this DWP are detailed in Table 4-1. Refer to the CEMP for further detail on roles and responsibilities

Table 4-1: Key Personnel Role

Project Manager

Thibaut L'Hopital

564 5756 Environmental and Sustainability Manager Sarah

Stakeholder and Communication Manager – NAL Line Mt Eden Section

Acoustics Specialist

Craig Fitzgerald

956 397

223 5204

534 899 Noise and Vibration Monitoring Manager Jenny Zhang

Auckland Council – Team Leader Central Monitoring Timothy O’Grady

CRL Hotline Email address

0800 CRL TALK (0800 275 8255) mteden@linkalliance.co.nz

569 6518

021 834 584

5. Performance standards

5.1 Noise

5.1.1. Construction noise

The construction noise Project Standards in CRL designation condition 31 are summarised in Table 5-1 below Construction noise shall be measured and assessed in accordance with the provisions of New Zealand Standard NZS 6803:1999 “Acoustics - Construction Noise” These noise limits apply at 1m from the most exposed façade of a receiver. If any construction activity cannot practicably comply with these limits, it must be mitigated as far as practicable using the measures outlined in this CNV DWP.

5-1: CRL Designation Condition 31.1 - Construction Noise Limits relating to CRL Designation 2500-6

Early Childhood Education Centres (whilst occupied during normal opening hours)

Bear Park Early Childhood Education Centre at 32 Akiraho Street (whilst occupied during normal opening hours)

35 dB LAeq in sleeping areas

35 dB LAeq in sleeping areas

65 dB LAeq in outdoor playing areas

5.1.2. Site Specific Construction Noise Management Plans

Any predicted or measured exceedance from activities occurring in the CRL designation must have a SSCNMP in accordance with CRL designation condition 31, except with reference to condition 37.2 where the exceedance is less than 5 decibels and does not exceed:

• 0700 – 2200: 1 period of up to 2 consecutive weeks in any 2 months; or

• 2200 – 0700: 1 period of up to 2 consecutive nights in any 10 days. For predicted exceedances of less than 5 decibels, monitoring shall be undertaken to confirm the actual noise levels (Section 9.1).

The objective of a SSCNMP is to detail the best practicable option(s) to avoid, remedy or mitigate adverse effects on a receiver resulting from construction noise that does not comply with CRL designation condition 31 SSCNMPs shall identify the matters outlined in CRL designation condition 37, summarised as follows:

• The relevant activity, timing, duration and predicted magnitude of exceedance (Section 6.1);

• A summary of communication and consultation undertaken with the receiver (Appendix D);

• The specific methods or measures employed to mitigate the noise effects (Section 7).

A site-specific plan may address both construction noise and vibration, in which case it would be a SSCNVMP. Site specific management plans are included in Appendix C.

5.2 Vibration

5.2.1. Cosmetic building damage

The cosmetic building damage Project Standards from CRL designation condition 33 are summarised in Table 5-2.

Construction vibration shall be measured and assessed in accordance with German Standard DIN 4150-3:1999. If any construction activity cannot practicably comply with these limits, it must be mitigated as far as practicable using the measures outlined in this CNV DWP.

Table 5-2: Project Construction Vibration Limits (Building Damage)

PPV at the foundation at a frequency of PPV at horizontal plane of highest floor

at horizontal plane of highest floor

5.2.2. Amenity

The vibration amenity Project Standards are contained in CRL designation condition 34.2 The following limits apply in response to a complaint from a building occupant:

• 1mm/s as measured on the floor of the receiving room for residentially occupied habitable rooms between 0700 and 2200 hrs; and

• 2mm/s as measured on the floor of the receiving room for retail and office spaces (including work areas and meeting rooms) between 0700 and 2200 hrs.

5.2.3. Site Specific Construction Vibration Management Plans

The objective of a SSCVMP is to detail the best practicable option to avoid, remedy or mitigate adverse effects on a receiver resulting from construction vibration that does not comply with CRL designation conditions 33 or 34, or in response to other concerns or complaints in accordance with CRL designation condition 17. SSCVMPs shall identify the matters outlined in CRL designation condition 38, summarised as follows:

• The relevant activity, timing, duration and predicted magnitude of exceedance (Section 6.2)

4 Standard DIN 4150-3:1999 defines short-term (transient) vibration as “vibration which does not occur often enough to cause structural fatigue, and which does not produce resonance in the structure being evaluated”. Long-term (continuous) vibration is defined as all other vibration types not covered by the short-term vibration definition.

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• A summary of communication and consultation undertaken with the receiver (Appendix D)

• Site specific vibration criteria, methods or measures that addresses the issue(s) of concern (i.e building damage, amenity or sensitive equipment).

A site specific plan may address both construction noise and vibration, in which case it would be a SSCNVMP. Site specific management plans are included in Appendix C.

5.3 Blasting

The blasting overpressure and vibration Project Standards are in CRL designation condition 32 unless a SSCNVMP is approved under Conditions 38, 39 or 40 which includes an alternative blasting vibration standard

Blasting overpressure shall not exceed the limits in Table 5-3 when measured and assessed in accordance with the provisions of Australian Standard AS 2187.2- 200 Explosives- storage and use –Use of explosives.

Table 5-3: CRL Designation Condition 32.2 and 32.3

Blasting vibration shall not exceed:

• The limits in Table 5-2 when measured at the foundation of any building.

• 10mm/s PPV for 95% of blast events and 15 mm/s for 100% blast events when measured at the foundation of any occupied building when measured and assessed in accordance with the provisions of DIN 4150-3:1999

5.4 MediaWorks

MediaWorks is a Notable Receiver, with specific noise and vibration requirements contained in CRL designation conditions 16, 35, 39 and 40. A SSCNVMP for MediaWorks is required by condition 40 and is included in Appendix C1

Mitigation, management, communication and consultation protocols applying to the MediaWorks buildings (excluding Studio 1), are included in this CNV DWP However, Studio 1 specific performance standards, predicted levels and monitoring requirements are contained in Appendix C1.

The additional specific performance standards applying to Mediaworks are summarised in Table 5-4

35.3 Studio 1 0.1 mm/s PPV9

35.6 Amenity (excluding blasting) 1 mm/s PPV

1 (Sensitive Times)

Floor of Studio 1 (Sensitive Times). If compliant in Studio 1, vibration in other studios will be acceptable.

Floor of office areas, meeting rooms and technical suites (occupied times).

35.8 Sensitive equipment 5–500Hz: 200mg (2 m/s2) Floor supporting sensitive equipment

5 These are the measurement locations where required by the Standard. For monitoring, proxy locations can be used with established transfer functions (refer condition 40.9)

6 Sensitive times defined in CRL Conditions 35.1 – 35.3 and summarised below

7 Limits may be up to 5 decibels higher for defined periods with the specified notifications detailed in condition 35.2

8 Position representative main presenter(s) microphone and with the doors and windows closed (Conditions 35.4/5)

9 Limit may be elevated by agreement with MediaWorks

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6. Predicted levels

6.1 Noise

Indicative unmitigated sound levels for the proposed equipment are presented in Table 6-1 at various receiver set back distances This table shall be used to inform when and what equipment will require mitigation or management and shall be kept up to date when new information becomes apparent through noise monitoring (Section 9.1) or other means.

Table 6-1: Indicative unmitigated noise levels for proposed equipment

The Mt Eden Enabling Works construction sites will be enclosed by noise barriers (Section 7.5). The barriers are effective at mitigating the noise levels received by passing pedestrians and occupants of ground floor levels in buildings (including via open shop doors). However, they provide little benefit for the upper floor levels of immediately adjacent buildings overlooking the works and barriers. Effective noise barriers typically reduce the received noise levels in Table 6-1 by 10 decibels where

10 Breaking solid rock, breaking fractured rock may be up to 10-15 decibels quieter

they block line-of-sight from source to receiver, reducing the setbacks in in Table 6-1 by 2/3 (e.g. 30m without screening vs 10m with screening).

Activities are predicted to generally comply, provided they are undertaken in a manner consistent with the measures in Section 7. Noise modelling figures are included in Appendix B for selected activities. These represent the highest noise levels from a series of representative activity positions to provide a reasonable ‘worst-case’ envelope. In summary:

• Concrete cutting: Demolition of buildings will primarily be carried out using a large excavator with a pulveriser or shear attachment, crane, and hand tools Activity specific mitigation and management measures for concrete cutting and breaking activities are included in Sections 7.6 and 7.7 Site specific plans are included in Appendix C for:

MediaWorks

10 – 14 Nikau Street

10 Flower Street.

• Bored piling: Piling is required for portal works near the corner of Nikau and Flower Streets and a new Mt Eden Road bridge. Activity specific mitigation and management measures for bored piling activities are included in Section 7.8. Site specific plans are included in Appendix C for:

Mediaworks

12-14 Nikau Street

10 Flower Street

24 Mt Eden Road.

Rock breaking: Blasting will be used to minimise rock breaking for the grade separation structure and cut and cover tunnels Blasting noise is addressed separately in Section 6.3 An excavator mounted breaker will be used for residual rock breaking Furthermore, temporary and permanent utility diversions along Fenton Street, Porters Avenue, Haultain Street and Wynyard Street also require rock breaking for smaller scale local trenching works Activity specific mitigation and management measures for rock breaking activities are included in Section 7.7. Site specific plans are included in Appendix C for:

10 Ruru Street

110 New North Road

MediaWorks

75 and 83 Mt Eden Road

140 New North Rd

2, 3, 4, 5 and 6 Porters Ave

1 and 2 Wynyard Rd

3, 5, 5A and 11 Fenton St

2 Haultain St.

81 Mt Eden Rd, 13 Akiraho, and 1, 7 and 9 Fenton St do not currently qualify for an SSCNMP because they are understood to be unoccupied Receivers to south of the main site works are predicted to receive noise levels of up to 76 – 77 dB LAeq, however, the need for SSCNMP’s will be informed by subsequent monitoring of the Stage 1 works.

• Vibro piling may be required locally for trench retention works on the eastern side of the eastern turnout, south of the portal piling. Activity specific mitigation and management

measures for rock breaking activities are included in Section 7.8 A site specific plan is included in Appendix C for 10 Flower Street.

6.2 Vibration

Table 6-2 provides indicative construction vibration levels for proposed activities that have the potential to result in vibration in building structures. It will be used by the Project Manager (or nominated person) prior to construction to inform what equipment will require mitigation and/or management and when. This table will be kept up to date by the Acoustic Specialist when new information becomes apparent through vibration monitoring (Section 9.2) or other means

Table 6-2: Indicative vibration set back distances from typical equipment

The activities in Table 6-2 are predicted to generally comply with the cosmetic damage limits (Section 5.2.1) but may be perceptible at times near the site perimeter. Rock and concrete breaking works associated with utility along Fenton Street, Porters Avenue, Haultain Street and Wynyard Street are predicted to have the potential to exceed the cosmetic building damage thresholds at nearby buildings Activity specific mitigation and management measures for rock and concrete breaking activities are included in Section 7.7 To address residual risk, pre construction building condition surveys will be offered in accordance with condition 46. Accordingly, site specific plans are included in Appendix C for:

• 2, 3, 4, 5 and 6 Porters Ave

• 3, 5, 5A and 11 Fenton St

Blasting will be used to minimise rock breaking. Blasting vibration is addressed separately in Section 6.3 Section 7.7 provides specific measures to minimise concrete and rock breaking vibration.

A SSCNVMP for MediaWorks is required by CRL designation condition 40 and is included in Appendix C1. Piling, breaking and tunnelling activities have the potential to result in vibration and/or reradiated noise levels that exceed the MediaWorks Studio 1 noise and vibration limits in conditions 35.2, 35.3 and 35.7 As such, the first occurrence of these activities will be timed outside Sensitive Times and monitoring will be undertaken.

11 Assumes sawcut used to be provide structural discontinuity prior to breaking in accordance with method in Section 7.7

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6.3 Blasting

This section will be superseded with a cross reference to the relevant section of the blasting contractors Blasting Management Plan (BMP) once appointed. The BMP will include the activity specific measures to minimise the impact of blasting noise and vibration in Section 7.9 The following preliminary guidance is provided to inform engagement in the interim.

Table 6-3 provides indicative blasting noise levels received at a building façade in accordance with CRL designation condition 32.2 and 32.3

Table 6-3: Indicative distances to comply with blasting noise limits at building façades

Table 6-4 provides indicative blasting short-term (transient) vibration levels in accordance with condition 32.4.

Table 6-4: Indicative distances to comply with blasting vibration limits at building foundations

Blasting is required in the east and west turnout trenches14 Blasting is predicted to generally comply with the limits in Section 5.3 However, based on a 0.7kg charge weight at the perimeter of the basalt extents, site specific plans are included in Appendix C for the following sites:

• 10 Ruru Street (approx. 22m minimum setback). Predicted to exceed the startle threshold and the residential cosmetic building damage threshold. A pre-construction building condition survey will be undertaken.

• 10 Flower Street (approx. 32m minimum setback). Predicted to comply with the startle threshold but exceed the residential cosmetic building damage threshold. A pre-construction building condition survey will be undertaken.

• 83 Flower Street (approx. 27m minimum setback). Predicted to exceed the startle threshold but comply with the commercial cosmetic building damage threshold.

• MediaWorks (approx. 37m minimum setback). Predicted to comply with both the startle threshold and the commercial cosmetic building damage threshold. However, a SSCNVMP is required by Condition 40 to address more specific requirements in condition 35, primarily

12 Based on regression analysis from AS 2187-2: 2006, Section J7.2 "Airblast overpressure"

13 Based on regression analysis from AS 2187-2: 2006, Section J7.3 "Ground Vibration" and the following site constants used by Orica for the CRL C6 blasting in Ruru Street: K= 925 and b =1.41.

14 Link Alliance briefing document dated 23 July 2019

31 | Mt Eden Enabling Works

addressed by timing of blasting outside Sensitive Times. A pre-construction building condition survey will be undertaken.

7. Mitigation and management

7.1 Training

All staff will participate in an induction training session when they commence work on the Project The induction will include a briefing on this CNV DWP, with attention given to the following matters:

• Roles and responsibilities for management of noise and vibration matters

• Construction noise and vibration limits

• Information about noise and vibration sources on-site

• Noise and vibration mitigation and management procedures

• The sensitivity of receivers to noise and vibration (including MediaWorks), and any operational requirements and constraints identified through communication and consultation

• Complaints management procedures

Awareness of current noise and vibration matters on, or near active worksites, will be addressed during site meetings and/or ‘toolbox’ training sessions.

7.2 Construction hours

General hours

Monday to Saturday: 0700 – 1900 hrs 1900 – 2200 hrs

MediaWorks Sensitive Times

Piling and road cutting

Concrete/rock breaking

Blasting

31: Prioritise.

31: Minimise where practicable Sunday: All other times (night) 0700 – 2200 hrs 2200 – 0700 hrs

Monday to Thursday 0600 – 0915 hrs

1600 – 1645 hrs

1730 – 1915 hrs

2020 – 2330 hrs

Friday

31: Minimise where practicable.

31: Avoid where practicable.

35.2: Amended by MediaWorks SSCNVMP in Appendix C1.

1600 – 1645 hrs

1730 – 1915 hrs

2020 – 2330 hrs

Saturday 0900 – 1230 hrs

1730 – 1915 hrs

Sunday 1730 – 1915 hrs

Monday to Saturday 0700 – 1900 hrs

Monday to Saturday Avoid Sensitive Times

Monday to Saturday 0900 – 1700 hrs while avoiding Sensitive Times

36.3 b): Restricted period.

35.2A: Within 100m of the MediaWorks building unless monitoring verifies compliance with the limits in Condition 35.2

32.6 and 35.10: Avoid MediaWorks Sensitive Times (above) during daylight hours

7.3 Mechanical plant selection

Some activities have the potential to exceed the CRL designation construction noise and vibration limits at close receiver distances. It is essential that appropriate mitigation and management measures are identified and employed in advance of the works to avoid exceedances When selecting construction equipment:

• Equipment will be suitably sized for the proposed task

• Equipment will be well maintained

• Exhaust silencers will be fitted

• Fit or upgrade engine covers in consultation with equipment manufacturer where appropriate

• Substitute diesel engines with electric motors where practicable

7.4 General mitigation measures

Best Practical Option (BPO) mitigation will be implemented throughout the construction programme to avoid exceedances. This will include, but not be limited to the following:

• Keep the construction time near noise sensitive areas to a minimum

• Avoid unnecessary noise, such as shouting, the use of horns, loud site radios, rough handling of material and equipment, and banging or shaking excavator buckets

• Avoid metal on metal contact where practicable by minimising drop height of materials, such as during loading and unloading of trucks

• Tonal reversing alarms shall be prohibited on site. Suitable alternatives may include flashing lights, broadband audible alarms or reversing cameras inside vehicles

• Mitigate track squeal from tracked equipment, such as excavators and piling rigs. This may include tensioning and watering or lubricating the tracks regularly

• Avoid high engine revs where practicable through appropriate equipment selection and turn engines off when idle / parked

• Avoid steep internal haul routes and keep the road surface smooth and well maintained

• Maximise the distance between the noise source and the nearest sensitive receiver by positioning fixed plant away from sensitive receivers, or orienting machinery to maximise the distance between the engine exhaust and the nearest sensitive building façade where practicable (e.g bored piling rig, excavators and mobile cranes)

• Crane and secure loads using straps in preference to chains where safe and practicable;

• Utilise power from the national grid in preference to generators where practicable

• Utilise noise barriers and enclosures where effective (Section 7.5)

• Implement further measures identified through communication and consultation with sensitive receivers (Section 8)

• Undertake noise and vibration monitoring to confirm compliance or identify high noise and/or vibration machinery (Section 9)

7.5 Noise barriers and enclosures

Boundary fences will be constructed, or existing fences upgraded, to provide effective noise mitigation during construction. Temporary noise barriers will be used where a construction noise limit is predicted to be exceeded (Section 6.1) and the barriers would noticeably reduce the construction noise level. Noise barriers will be installed prior to works commencing and be

maintained throughout the works Effective noise barriers typically reduce the received noise level by 10 decibels

Where practicable, the following guidelines will be incorporated in the design and utilisation of noise barriers:

• The panels will be constructed from materials with a minimum surface mass of 6.5 kg/m2, including the following proprietary ‘noise curtains’:

- Duraflex ‘Noise Control Barrier - Premium Series’ (www.duraflex.co.nz)

- Soundex ‘Acoustic Curtain - Performance Series' (www.ultimate-solutions.co.nz)

- Flexshield ‘Sonic Curtain with 4 kg/m2 mass loaded vinyl backing’ (www.flexshield.co.nz)

- Alternatives will be approved by a suitably qualified acoustic specialist because some proprietary noise curtains have insufficient surface mass for general use

• The panels will be a minimum height of 2m, and higher if practicable to block line-of-sight;

• The panels will be abutted or overlapped to provide a continuous screen without gaps at the bottom or sides of the panels;

• The panels will be positioned as close as practicable to the noisy construction activity to block line-of-sight between the activity and noise sensitive receivers; and

• Where positioned on the site boundary, additional local barriers will be considered near the activity to ensure effective mitigation for sensitive receivers on upper floor levels.

Noise enclosures surround the sound source with noise barriers on more than one side and include a ‘roof’. The effectiveness of noise enclosures depends on the extent that the source can be enclosed without constraining the operation of the equipment and resulting in an unacceptable occupational health and safety environment (e.g noise exposure, heat, dust, poor lighting etc) Enclosures can also result in traffic management issues and increase construction duration for short term or transient activities.

The following guidelines will be incorporated in the design and utilisation of noise enclosures where practicable and effective:

• Enclosures will be used for stationary plant where a noise barrier is not sufficient to achieve compliance with the noise limits and it is practicable to do so (e.g. fixed paver cutting stations, pumps, concrete crushing plant, spoil handling conveying equipment etc).

• The enclosure can be erected using the noise curtains listed above, or alternatively, the following proprietary cutting station ‘noise enclosures’ can be used:

Echo Barrier ‘Cutting Station’ (www.supplyforce.co.nz)

Soundex ‘E6/2 Quick-Tech Cutting Enclosure' (www.ultimate-solutions.co.nz)

Hushtec ‘Acoustic Tent’ (www.duraflex.co.nz)

• Alternatively, a suitably qualified and experienced acoustic specialist (such as MASNZ) will be involved in the custom design of the enclosure (an example is included as Figure B.3 in NZS 6803:1999).

7.6 Concrete and paver cutting

Where practicable:

• Use noise barriers for concrete cutting and a noise enclosure for paver cutting stations (Section 7.5)

• Minimise the concrete cutting period, and, the number of cutting periods (e.g. complete all cutting in one extended period rather than two shorter periods with the same overall duration)

• Select blades that are sharp, maximise the number of teeth, minimise the blade width, minimise gullet depth, and have built in vibration damping slots

• Use a unit fitted with a blade shroud and operate with a water supply

7.7 Concrete and rock breaking

Avoid MediaWorks Sensitive Times for breaking within 100m of the MediaWorks building unless monitoring verifies compliance with the limits in Condition 35.2 (Appendix C1).

Other general measures include the following where practicable:

• Use local noise barriers to screen the breaker tip (Section 7.5)

• For concrete breaking near buildings, an initial perimeter saw cut will be made at the perimeter to reduce vibration transfer

• For rock breaking, initial breaking will be undertaken at the perimeter of the rock face closest to neighbouring buildings. This will enable monitoring of the highest vibration levels received at nearby buildings for compliance purposes (Section 9.2). It will also mitigate the vibration transfer from subsequent breaking by creating a ‘trench’ of fractured rock between the breaker and nearby buildings.

• Minimise the volume of breaking (e.g use a crushing shear or pulveriser attachment in place of a breaker, or use a cut and lift approach to enable breaking in the centre of site)

• Minimise the duration of breaking, and, the number of breaking periods (e.g complete all breaking in one extended period rather than two shorter periods with the same overall duration)

• Match the size of breaker to the scale of the works (i.e large enough to undertake the works efficiently, but avoiding oversized units)

• Match the chisel/tip type to the material and use a dampened bit to avoid ringing; and

• Avoid ‘blank’ firing by engaging the material before commencing and stopping before it fires through the material.

7.8 Piling

Where practicable:

• Prioritise piling methods that minimise noise and vibration (e.g. augured, screw or press-in piles over impact driven or vibratory piling methods)

• Minimise alternating rotation of the bored piling auger to loosen spoil into the muck bin. Shaking the ‘kelly bit’ connection creates very loud banging that can result in noise complaints. It is understood this action can be avoided for general auger use, but is necessary specifically when a coring barrel is used to drill through obstructions (due to Health and Safety issues related to alternative ways of loosening material from the bit).

7.9 Blasting

The blasting contractor will prepare a Blasting Management Plan (BMP) in accordance with AS 21872. General measures will include:

• A shroud will enclose the cutting head of the blast hole drilling rig where practicable

• Comprehensive vibration and air overpressure level predictions will be performed prior to every blast event

• Signature hole analysis (small trial blasts) will be undertaken to determine site specific vibration attenuation characteristics, air overpressure levels and maximum instantaneous charge weight (MIC) thresholds. Outcomes will be documented in a Trial Blast Report. This Trial Blasting Report shall be used for subsequent design of production blasting.

• Where predicted vibration levels exceed the cosmetic building damage limits (Section 5.3), investigate modifications to the blasting technique (e.g charge weight, charge layout, firing order, hole depths etc) Where blasting is the BPO and is still predicted to exceed the cosmetic building damage limits, a SSCNVMP will be prepared (Section 5.2.35.3)

• Where practicable and appropriate, the production blasting will commence at the closest position to sensitive receivers. Fracturing the basalt layer can reduce vibration transmission to receivers from subsequent blasts further away.

• Blasting times will be agreed with MediaWorks and avoid Sensitive Times (Appendix C1).

• Startle caused by blasting will be mitigated through communicating (Section 8.1) exactly when blasts will occur (e.g. 10am and 2pm) and having an audible countdown sequence.

8. Communication

8.1 Communication overview

Communication with stakeholders in relation to construction noise and vibration impacts is described in the Communication and Consultation Plan (CCP)

A summary of Community and Business Liaison Group (CLG) and Independent Peer Review (IPR) feedback relevant to this CNV DWP will be maintained in Appendix D

As a minimum, the following communication shall be undertaken:

• Written notification of the Mt Eden Enabling Works will be provided to MediaWorks and all property occupiers within 100m of the worksite to raise awareness of the works, the required construction works and their duration in their vicinity This will be undertaken at least 20 working days prior to the commencement of works on site.

• The Mt Eden Stakeholder and Communications Manager will provide monthly updates of monitoring and project progress to affected parties.

• Startle caused by blasting will be mitigated through communicating exactly when blasts will occur (e.g. 10am and 2pm) and having an audible countdown sequence. The Mt Eden Stakeholder and Communications Manager will provide occupants of buildings within 100m of blasting at least 24 hours’ notice.

• The Mt Eden Stakeholder and Communications Manager will advise any affected parties of construction activities that are predicted or have been identified by the noise specialist to exceed the limits in Section 5 following the application of BPO mitigation identified in Section 6.3.

• The Mt Eden Stakeholder and Communications Manager shall undertake communications with MediaWorks in accordance with CRL designation condition 16 unless agreed in their SSCNVMP in Appendix C1. This shall include weekly updates of monitoring and project progress to MediaWorks (unless otherwise agreed with MediaWorks). In the event of breaking news, MediaWorks is to advise the Mt Eden Stakeholder and Communications Manger as soon as possible. The contractor shall modify their activities as soon as is practicable with specific regard to safety to ensure compliance with the standards in condition 35.2.

• The Mt Eden Stakeholder and Communications Manager shall address any concerns and complaints regarding construction noise and vibration in accordance with Section 8.2. When discussing vibration concerns, it is important to convey that vibration can be felt at levels far below those that pose even the smallest risk of building damage.

8.2 Complaints response

The contact name and phone number of the Mt Eden Stakeholder and Communications Manager, to which complaints can be directed, shall be clearly included in any written notification and on-site signage

Any construction noise and/or vibration complaint shall be recorded in a complaints file, and an investigation shall be undertaken involving the following:

• Identification of sources of concern, and measuring or estimating noise and/or vibration levels at the time of the complaint;

• A hotline phone/text number shall be established to receive complaints. Acknowledge receipt of the concern or complaint. An initial response shall be undertaken within 24 hours of receiving a complaint and resolved as soon practicable. If a reasonable complaint relates to building damage or sleep disturbance, inform the on-duty site manager as soon as practicable to cease works pending the investigation;

• Reporting the findings and recommendations to the Construction Manager;

• Actions and time taken to close-out complaint;

• Communication with the complainant; and

• Reporting of the investigation in the complaints file.

A record of all concerns and/or complaints received shall include:

• The name of the person(s) who raised the concern or complaint (unless they elect not to provide this) and details of the concern or complaint;

• Where practicable, weather conditions at the time of the concern or complaint, including wind direction and cloud cover if the complaint relates to noise;

• Known construction activities at the time and in the vicinity of the complainant during the concern or complaint period; and

• Remedial actions undertaken (if any) and the outcome of these, including monitoring of the activity.

If a complaint is received about vibration amenity, and a measurement demonstrates exceedance of the CRL designation condition vibration limits, the following procedures will be implemented:

• Further measurements may be required to determine the extent of the exceedance and identify the activity/activities responsible;

• Review the mitigation strategy and construction methodology to ensure BPO is applied;

• Further measurements may be required to determine the effectiveness of BPO measures and reassess the compliance status;

• Determine if the receiver qualifies for a SSCNVMP (Section 5); and

• The Mt Eden Stakeholder and Communications Manager shall liaise with affected parties (Section 10.3).

9. Monitoring

9.1 Noise

Construction noise shall be measured and assessed:

• During the first occurrence of concrete cutting, concrete breaking, bored piling, vibro piling, rock breaking, signature hole analysis (test blast), production blasting, and other activities that are predicted to exceed the noise limits (Section 5.1) and in response to a noise complaint (Section 8.2)

• At 1m from the most affected building façade, or proxy position and adjusted for distance and façade reflections where appropriate

• By a suitably qualified and experienced specialist (e.g. Member of the Acoustical Society of New Zealand) in accordance with the requirements of New Zealand Standard NZS 6803: 1999 “Acoustics - Construction Noise”

• For a representative duration, reported with the measured level (e.g. 65 dB LAeq (30min))

• The monitoring results shall be used to update Section 6.1 as appropriate

A flow chart showing the process for attended noise monitoring is included Figure 9-1.

Noise monitoring (Section 9.1):

• During the first use of high noise equipment (Section 6.1)

• In response to a reasonable complaint (Section 8.2) or to verify an exceedance

No

Comply with noise limits? (Section 5.1)

Yes

Response to a previous noncompliant measurement?

No

Review mitigation and management strategies to ensure BPO (Section 7)

Limits practicably achieved?

Yes No

Qualify for SSCVMP?

Yes

Prepare SSCNMP (Appendix C)

Yes

Submit findings to Project Manager

Revise construction methodology

No

Specific noise monitoring requirements for MediaWorks are included in Appendix C1.

9.2 Vibration

Construction vibration levels shall be measured and assessed:

• During the first occurrence of concrete breaking, bored piling, vibro piling, rock breaking, signature hole analysis (test blast), production blasting, road header, TBM and other activities that are predicted to exceed the vibration limits (Section 5.2) and in response to a vibration complaint (Section 8.2)

• At the closest building foundations and/or the top floor level as appropriate where consent to access the building of interest has been requested and granted, or proxy position and adjusted for distance where appropriate

• By a suitably qualified and experienced specialist (e.g. Member of the Acoustical Society of New Zealand) in accordance the requirements of German Standard DIN 4150-3:1999

“Structural vibration – Part 3: Effects of vibration on structures”

• For a representative construction duration, generally measured in 1 – 2 second intervals

• The monitoring results shall be used to update Section 6.2 as appropriate.

A flow chart showing the process for attended vibration monitoring is included as Figure 9-2 overleaf

The following procedures will be implemented where measured construction vibration exceeds the CRL designation standards in condition 33:

• The activity giving rise to the exceedance will cease as soon as safe and practicable to do so;

• Determine if the receiver qualifies for a SSCVMP (Section 5.2.3);

• A detailed building condition survey will be undertaken; and

• The Mt Eden Stakeholder and Communications Manager will liaise with the building owner throughout this process

If damage has not occurred, then that activity can continue provided the measured vibration level is not exceeded further. If damage has occurred, then alternative construction methods will be investigated, subject to implementation of the BPO, and the Link Alliance shall commit to repairing the damage within a reasonable timeframe after the construction phase ceases.

Specific vibration monitoring requirements for MediaWorks are included in Appendix C1.

Vibration monitoring (Section 9.2):

• During the first use of high vibration equipment (Section 6.2)

• In response to a reasonable complaint (Section 8.2) or to verify an exceedance

Cosmetic Building Damage

Notify Project Manager, cease the activity, engage a structural engineer and undertake a building condition survey

Comply with cosmetic building damage limits? (Section 5.2.1)

Amenity

Comply with the amenity limits? (Section 5.2.2)

Engage heritage expert

Building damage? Damage type?

Seek advice from structural expert before continuing Heritage building?

Review mitigation and management strategies to ensure BPO (Section 7)

Limits practicably achieved?

Response to a previous noncompliant measurement?

9-2 Vibration Monitoring Flow Chart

Qualify for SSCVMP?

Prepare SSCVMP (Appendix C)

Submit findings to Project Manager

Revise construction methodology

10. Effects in buildings

10.1 Noise

The noise level received inside, for example, an office or living room, will depend on the sound insulation performance of the façade (particularly the glazing) and room constants (such as the room dimensions and surface finishes). These factors can vary widely. The Construction Noise Standard (NZS 6803) recommends noise limits assessed at 1m from the external façade of a building, assuming a sound level difference of 20 decibels to sensitive receiving environments inside

For the purpose of estimating actual noise effects on a room by room basis, the predicted façade sound insulation performance of buildings can be generally categorised by the type of glazing / ventilation provision as follows:

• Sealed glazing

• Closed windows (openable)

• Open Windows

30 decibels sound level difference

25 decibels sound level difference

15 decibels sound level difference

The SSCNMPs in Appendix C will use the above assumptions initially. However, they will be updated with site specific measured performance when available. Measurements in advance of the works may be practicable in some cases In other cases, a visual inspection may provide a more informed estimate of façade performance

‘Noise effects matrices’ are presented in Table 10-1 and Table 10-2. They enable estimation of the construction noise level received inside, based on the external noise level and façade glazing type

The noise effects matrices are indicative only, as detailed assessment requires measurement of the actual façade performance on a space by space basis.

The noise effects are categorised generally using colour coding

To use the matrices, follow this three-step process:

• Measure the external noise level at 1m from the façade, or estimate it from Section 6.1

• Determine the category of façade glazing sound insulation performance from the guidance above or measured on-site façade sound level difference for a specific receiver location

• Use the relevant lookup table to estimate the received internal noise level and associated typical effects that may be experienced using Table 10-1 and Table 10-2 overleaf

Table 10-1: Daytime noise levels in commercial & industrial buildings and habitable rooms in dwellings

External Noise Level (dB LAeq)

(Appendix B)

Estimated Internal Noise Level (dB LAeq)

• < 50 dB LAeq Typically acceptable

• 50 – 60 dB LAeq

• > 60 dB LAeq

Annoyance and reduction in work efficiency

Difficulty holding a normal conversation and reduction in work efficiency

Table 10-2: Night-time noise levels in bedrooms of dwellings

External Noise Level (dB LAeq)

(Appendix B)

Estimated Internal Noise Level (dB LAeq)

• < 35 dB LAeq Typically acceptable

• 35 – 40 dB LAeq Annoyance and sleep disturbance for some noise sensitive receivers

• > 40 dB LAeq Annoyance and sleep disturbance for most noise sensitive receivers

10.2 Vibration

While the primary vibration concern is typically cosmetic building damage (Section 5.2.1), people may be disturbed at levels which are significantly lower (Section 5.2.2) Potentially affected parties will be informed about the vibration levels they may experience and assured vibration damage can only occur at magnitudes well above the threshold of perception (Section 8.1).

British Standard BS 5228-2:2009 “Code of practice for noise and vibration control on construction and open sites – Part 2: Vibration” provides the following guidance on the amenity effects of vibration:

• 0.14mm/s PPV Just perceptible in the particularly sensitive environments

• 0.3 mm/s PPV Just perceptible in normal residential environments

• 1 mm/s PPV Typically acceptable with prior notification

• 10 mm/s PPV Likely to be intolerable for any more than a very brief period In some cases, construction vibration can excite building structures. This is heard as ‘reradiated noise’ rather than felt as vibration within the building, but is the result of a structural transmission

Page 44 | Mt Eden Enabling Works

path. Predictions of reradiated noise levels are complex and site specific. Where necessary, a suitability qualified acoustic specialist will be engaged to provide guidance. Reradiated noise effects can be estimated using the guidance in Section 10.1

10.3 Management of adverse effects

The following process will be implemented for any construction activity that is found to exceed the relevant construction noise and vibration Project Standards:

• Review the construction methodology, mitigation and management strategies to ensure they represent the BPO.

• The Mt Eden Stakeholder and Communications Manager will consult with affected parties to understand their sensitivities, including times, activities and locations. Consultation will focus on a collaborative approach to managing the adverse effects from construction noise and vibration while works are undertaken in the vicinity.

• The Mt Eden Stakeholder and Communications Manager (or representative) will be available 24/7 during works periods. A record of consultation will be included in the relevant SSCNMP (Appendix C) or otherwise in Appendix D as appropriate.

• Implement measures to avoid significant adverse effects as agreed with the affected party and monitor the activity to verify the extent of any adverse effects.

• Temporary relocation will be considered for sensitive receivers where all practicable noise and vibration management and mitigation measures have been implemented and significant adverse noise effects are predicted. This will be in exceptional cases only, and advice from the Specialist Noise and Vibration Advisor will be sought prior.

Appendix A: ISCA Requirements

CRLL is seeking ISCA (infrastructure Sustainability Council of Australia) Rating for the whole project lifecycle The requirements as per ISCA CRL IS Technical Manual – Mahi Rauora Aratohu - Version 1.2 are essential to achieve the Project’s sustainability goal (Reference to CRLL minimum requirements - Appendices 10, 23 and 24 of the contract documents) Table A-1 includes the necessary IS requirements to achieve a target level 2 of Dis2 and Dis-3 ISCA credits These requirements remain subject to change as the project goes forward Hence, Table 11 1 is to be reviewed, amended (as and if needed) and confirmed to meet the target level that will be set and agreed upon. The relevant required evidence(s) to achieve the target to be provided at appropriate timing.

Table A-1 IS requirements to achieve a target level 2 of Dis-2 and Dis-3 ISCA credits

Noise NZS 6803:1999 “Acoustics - Construction Noise” referred to in this DWP - is listed as an ISCA

Approved Guideline

Benchmark

• Measures to mitigate noise during construction and operation have been identified and implemented.

• Monitoring of noise is undertaken at appropriate intervals and in response to complaints during construction

• For construction, modelling and monitoring demonstrates no recurring or major divergences from the noise management process in ISCA approved noise guidelines.

Evidence

Design report, as-built drawings, environmental management plan, asset management plan Monitoring reports.

Section 5.1.2– for site specific noise management plans.

Section 7 – for general mitigation measures

Section 8.2 – Complaints

Response

Section 9.1 - Monitoring . Dis-3 2

Vibration

Benchmark

• Measures to mitigate vibration during construction and operation have been identified and implemented.

• Monitoring of vibration is undertaken at appropriate intervals and in response to complaints during construction.

• For construction, modelling and monitoring demonstrates no exceedances of vibration goals for structural damage to buildings and structures.

• No physical damage has been caused to any buildings or structures by vibration caused by construction.

Evidence

Design report, as-built drawings, environmental management plan, asset management plan Monitoring reports.

Section 5.2.1– for building damage standards

Section 5.2.3 – For site specific management plans.

Section 7 – for general mitigation measures

Section 8.2 – Complaints

Response

Section 9.1 - Monitoring

Appendix B: Noise And Vibration Level Predictions

B1 Concrete Cutting (demolition)

53 | Mt Eden Enabling Works

B5 Vibration Contours

Appendix C: Site Specific Management Plans

The following site specific plans are included in this appendix:

• C1 MediaWorks SSCNVMP

• C2 12-14 Nikau Street SSCNMP

• C3 10 Flower Street SSCNVMP

• C4 10 Ruru Street SSCNVMP

• C5 24 Mt Eden Road SSCNMP

• C6 110 New North Road SSCNMP

• C7 75 Mt Eden Road SSCNMP

• C8 83 Mt Eden Road SSCNMP

• C9 2 Porters Ave SSCNVMP

• C10 3 Porters Ave SSCNVMP

• C11 4 Porters Ave SSCNVMP

• C12 5 Porters Ave SSCNVMP

• C13 6 Porters Ave SSCNVMP

• C14 1 Wynyard Ave SSCNVMP

• C15 2 Wynyard Ave SSCNMP

• C16 3 Fenton Street SSCNVMP

• C17 5a Fenton Street SSCNVMP

• C18 5 Fenton Street SSCNVMP

• C19 11 Fenton Street SSCNVMP

• C20 2 Haultain Street SSCNMP

• C21 Bear Park 32 Akiraho Street SSCNMP

• C23 140 New North Road SSCNMP

C1 MediaWorks SSCNVMP

C1.1 Introduction

This Site Specific Construction Noise and Vibration Management Plan (SSCNVMP) is for the MediaWorks Building at 3 Flower Street. It is required to satisfy CRL designation conditions 35, 39 and 40. A SSCNVMP was prepared and implemented for the now completed C6 works. That SSCNVMP was prepared in consultation with MediaWorks and was included as Appendix C18 of the C6 CNV DWP. That SSCNVMP has been used as the basis of this document.

As Appendix C1 of the Construction Noise and Vibration Delivery Work Plan (CNV DWP), this SSCNVMP is a supplementary document that builds on the Mt Eden Station Enabling Works CNV DWP, and therefore, directly references relevant sections of the CNV DWP to avoid repetition. Together, the CNV DWP and MediaWorks SSCNVMP are consistent with the draft MediaWorks SSCNVMP15. It will be implemented for works within 100m and blasting activities within 200m of the MediaWorks Building.

The objective of this SSCNVMP is to detail the best practicable option(s) to avoid, remedy or mitigate the identified adverse effects on MediaWorks. It contains, or references:

• Details of those responsible for implementing this SSCNVMP (CNV DWP Section 4)

• MediaWorks noise and vibration sensitive spaces (Section C1.3)

• The relevant standards (the general requirements in CNV DWP Section 5 and the MediaWorks specific requirements for Studio 1 are summarised in Section C1.2)

• Predicted construction noise and vibration levels and transfer functions (Section C1.4)

• Mitigation and management measures (CNV DWP Section 7)

• Communication protocol (CNV DWP Section 8)

• Monitoring (CNV DWP Section 9 and Section C1.5 specifically for Studio 1)

• Contingency measures (CNV DWP Section 10.3 and Section C1.6 specifically for Studio 1).

• SSCNVMP review process (CNV DWP Section 1.5 and CRL condition 40.13)

This SSCNVMP has been prepared by Marshall Day Acoustics and forms part of the Construction Environmental Management Plan (CEMP) for the Mt Eden Enabling Works

15 Project Agreement in respect of the City Rail Link between Auckland Transport (AT) and MediaWorks Holdings Limited (Mediaworks), reference item 6 and Appendix 1.

C1.2 Construction Noise and Vibration Standards

The relevant construction noise standards are summarised in Table C1.2.1.

Table C1.2.1: Construction Noise – MediaWorks

31.1 General16 75 dB LAeq External façade (all times)

32.2 Blasting17

32.3 Blasting17

35.2

LZpeak External façade (occupied times)

Studio 1 (Sensitive Times)

The relevant construction vibration standards are summarised in Table C1.2.2.

Table C1.2.2: Construction Vibration – MediaWorks

32.4 Amenity (blasting) 10 mm/s PPV for 95% of events 15 mm/s PPV for 100% of events

33.1 Building Damage22 Refer DWP Section 5.2.1

35.3 Studio 1 0.1 mm/s PPV23 construction 0.25mm/s PPV demolition only

35.6 Amenity (excluding blasting) 1 mm/s PPV

35.8 Sensitive equipment 5–500Hz: 200mg (2 m/s2)

Floor of occupied areas.

Building foundations or Top floor

Floor of Studio 1 (Sensitive Times). If compliant in Studio 1, vibration in other studios will be acceptable.

Floor of office areas, meeting rooms and technical suites (occupied times).

Floor supporting sensitive equipment

The operational requirements and constraints provided by MediaWorks for Studio 1 are detailed in CRL designation conditions 35.1 – 35.3 and summarised as follows:

• Sensitive Times are defined as:

16 Measured and assessed in accordance with the provisions of New Zealand Standard NZS 6803:1999 “AcousticsConstruction Noise”

17 Measured and assessed in accordance with the provisions of Australian Standard AS 2187.2-2006 “Explosives

– Storage and use – Use of explosives”. Refer Section 5

18 Sensitive times defined in CRL designation conditions 35.1 – 35.3 and summarised below

19 Limits may be up to 5 decibels higher for defined periods with the specified notifications detailed in condition 35.2

20 Position representative main presenter(s) microphone and with the doors and windows closed (conditions 35.4/5)

21 These are the measurement locations where required by the Standard. For monitoring, proxy locations can be used with established transfer functions (refer condition 40.9)

22 Measured and assessed in accordance with the provisions of German Standard DIN 4150-3:1999 “Structural vibration – Part 3: Effects of vibration on structures”

23 Limit may be elevated by agreement with MediaWorks as per demolition works detailed in C1.3 dated 25 Nov 2019

Page 58 | Mt Eden Enabling Works

- During scheduled live broadcasting

- During emergency/breaking news live broadcasting

- During scheduled recording sessions

• Live Broadcasting Periods are defined as:

- Weekdays: 0600 – 0900 hrs, 1200 – 1230 hrs, 1730 – 1930 hrs and 2230 – 2330 hrs However, these have been updated by MediaWorks in the consultation overleaf.

- Christmas holiday season (Saturday prior to Christmas Day to Sunday following New Year’s Day inclusive): 1730 – 1900 hrs

C1.3 Engagement

The building is terraced commercial building. It features basement car parking beneath 2 – 4 levels of office areas overlooking the portal and worksite on the Nikau Street façade. The west façade includes a basement truck dock (lobbied access to Studio 1) beneath office areas at the south end off Ruru Street and editing suites further north, away from the worksite. Studio 1 is in the basement in the middle of the block (i.e. it does not have direct road frontage or access). Other smaller recording studios (including radio and TV) are spread across multiple floors, but also do not front Nikau Street and the worksite.

Link Alliance representatives Sonya Leahy, Matt Goldring, Aidan Kirkby-McLeod, Duncan Whyte and Craig Fitzgerald (Marshall Day Acoustics) met with MediaWorks representatives Richard Paul (Property), Darryn Fouhy (Operations) and Emma Michell (Facilities) on 18 September 2019. The matters discussed included:

• An overview of the project

• General programme, demolition, piling, rock breaking/blasting and tunnelling activities

• Overview of the CNV DWP and this SSCNMP, communications triggers and protocol

• Confirmed knowledge of noise and vibration sensitive spaces, including Studios

• Noise and vibration monitor locations agreed and described in Section C1.5

• MediaWorks confirmed that the Sensitive Times in the CRL designation conditions do not reflect current operations. MediaWorks provided updated Sensitive Times (received 18 September 2019):

o Monday – Friday: 0600 – 0915, 1600 – 1700, 1730 – 1915, 2020 – 2330

o Saturday: 0900 – 1230, 1700 – 1915

o Sunday: 1700 – 1915

Link Alliance representatives Sonya Leahy, Dave Harris and Craig Fitzgerald (Marshall Day Acoustics) met with MediaWorks representatives Darryn Fouhy (Operations) and Emma Michell (Facilities) on 22 November 2019. We discussed the results of attended demolition noise and vibration monitoring in Studio 1 to assess the impact of reradiated noise on broadcast quality. It was agreed that vibration controls applying to Studio 1 could be relaxed to 0.25mm/s PPV during Sensitive Times for demolition activities only (confirmed by email from Darryn Fouhy on 25 November 2019).

In addition, we recommend the following specific management measures for demolition phases 1a and 1b only:

• Concrete breaking shall not occur during Sensitive Times

• Concrete ripping should be limited to 20T excavator

The same monitoring process will be repeated for subsequent construction activities before any relaxation is extended (e.g. bored piling, rock breaking, vibro piling)

C1.4 Predicted Construction Noise and Vibration Levels

Noise (excluding Studio 1)

Figures B.1, B.3 and B.5 in Appendix B of the CNV DPW show that the south façade is predicted to be exposed to noise levels between 70 – 80 dB LAeq during the closest demolition, bored piling and concrete breaking activities, exceeding the 75 dB LAeq noise limit.

The building has a masonry façade with sealed windows, which will mitigate noise received in adjacent office areas. Furthermore, secondary glazing has been installed to further mitigate residual noise levels in office areas on level 2 of the MediaWorks building24.

The estimated sound level difference across the façade with the windows and doors closed is in excess of 30 decibels. The predicted construction noise effects from Table 10-1 in Section 10.1 are predicted to be typically acceptable, but with the potential for some intermittent disturbance for occupants on the southern façade The performance will be reconfirmed during attended monitoring of early works.

Vibration (excluding Studio 1)

TBM, road header, concrete breaking and rock breaking vibration received in the MediaWorks building office areas, meeting rooms and technical suites is predicted to comply with the 1mm/s PPV amenity limit in CRL designation condition 35.5 (discussed further for Studio 1 below).

Studio 1 Noise and Vibration

In accordance with CRL designation condition 35.3, if the limits are complied with in Studio 1, the noise and vibration levels in all other Studios will be acceptable

In accordance with condition 40.1, high noise and vibration equipment items are identified in Section 6 of the CNV DWP.

The closest concrete breaking works associated with demolition are approximately 40m from Studio 1 on the south side of Nikau Street. The vibration level from a small excavator mounted concrete breaker (5T) received in Studio 1 is predicted to be 0.1mm/s PPV at 40m, which is at the Studio 1 limit specified in CRL designation condition 35.3. However, it should be acknowledged that these predictions are indicative only and are beyond the reliable tolerances of the prediction method.

The closest rock breaking works are approximately 60m from Studio 1 on the south side of Nikau Street. The vibration level from a large excavator mounted concrete breaker (20-40T) received in Studio 1 is predicted to be 0.3mm/s PPV at 60m, which is above the Studio 1 limit specified in CRL designation condition 35.3. However, it should be acknowledged that these predictions are indicative only and are beyond the reliable tolerances of the prediction method. Furthermore, similar C6 rock breaking works were approximately 90m from the Studio with no known effects or vibration exceedances of the 0.1mm/s PPV limit in the Studio.

24 Project Agreement in respect of the City Rail Link between Auckland Transport (AT) and MediaWorks Holdings Limited (Mediaworks), reference item 7 and Appendix 2.

CRL designation condition 35.2A limits rock breaking used for tunnel excavation within 100 metres during defined Sensitive Times (as defined in designation Condition 35.2) unless compliance with the limits in condition 35.2 can be demonstrated. While concrete breaking is neither rock breaking nor for tunnel excavation, the first instance of both concrete and rock breaking within 100m will be timed to occur outside Sensitive Times to enable measurement and demonstration of compliance with designation condition 35.2 prior to expanding the works period. This approach aligns with the requirements of CRL designation conditions 40.3 and 40.8 and addresses any residual risk of exceedance.

TBM and road header activities also have the potential to marginally exceed the Studio 1 limit specified in CRL designation condition 35.3 depending on the finalised alignment. These tunnelling activities have the potential to generate vibration induced reradiated noise (a low frequency rumble). The vibration transfer function will need to be established once the project starts as it cannot be readily predicted with any accuracy. This will be monitored to ensure compliance.

It is noted that the 0.1mm/s PPV vibration limit primarily controls reradiated noise levels to below 30 dB LAeq (5 min) and 33 dB LAeq (1 sec) specified in CRL designation condition 35.2. This relationship was established in an SLR report during the CRL hearings process25. It determined that the airborne noise component received in the Studio was negligible (transfer function in the order 80 decibels) and that the only residual noise effect would be from reradiated noise. This relationship will be used as the initial basis to satisfy designation conditions 40.2 and 40.3, however, will be reviewed following monitoring of the first occurrence of concrete breaking (described in the previous paragraph).

Blasting will be timed to avoid sensitive times.

C1.5 Studio 1 Monitoring

Overview

Noise and vibration monitoring inside Studio 1 shall be undertaken by a suitably qualified and experienced acoustic specialist in accordance conditions 35 and 40. This shall include continuous automated monitoring in accordance with condition 40.9. The data shall be available in real time to City Rail Link Limited, Link Alliance, Auckland Council and MediaWorks.

Any additional proxy noise and vibration controls shall be determined, and agreed upon by MediaWorks, that enable on-site compliance management. The proxy controls shall be determined in accordance with designation conditions 40.2 and 40.3 and included for reference in the Tables C1.2.

System Setup

The automated monitoring systems measure continuously. The data is uploaded to a secure website (or similar) for access by key personnel. The systems also generate automated email/text alerts for any exceedances.

In addition to the automated monitoring, attended monitoring will be undertaken during the first occurrence of concrete breaking activities within 100m of MediaWorks. This will enable verification of the measured levels in Studio 1 and inform subjective impressions of resulting effects. It will also inform the transfer functions for this activity between the demolition sites and Studio 1. The transfer functions may allow subsequent measurements during the

25 SLR report Mediaworks Investigations Borehole and Studio Vibration, 610.12219.00400-R1, dated 21 October 2013

remainder of construction period to be undertaken at other locations. These would be the ‘proxy’ locations and would be reviewed and agreed upon by MediaWorks prior to their use.

Monitoring may occur at locations simultaneously or sequentially provided the vibration sources of interest are captured, and compliance with the conditions can be demonstrated. The monitoring locations may change over time to accommodate different phases of construction, but throughout there will be a consistent focus on Studio 1.

Vibration measurements are likely to be influenced by other activities causing vibration in the building (e.g. people walking past the transducers, moving equipment, doors slamming etc.). These ‘false positives’ can be managed in the first instance through appropriate placement of the monitors but can also be managed by processing the data statistically or comparing simultaneous monitoring data from the two vibration monitors in the building to ensure these anomalous events are not interpreted as construction events. The trigger threshold for text/email alerts may also be modified as appropriate to reduce the number of ‘false positives’ in accordance with condition 35.3 by agreement of both the Requiring Authority and MediaWorks.

Monitoring Locations

The monitoring locations agreed in consultation with MediaWorks are as follows:

Monitoring Equipment

Construction vibration will be monitored using Syscom MR3000C units. The units would typically be placed on the basement floor near the façade closest to the construction works

and/or in Studio 1. Alternatively, they may be placed on the top floor near the same façade. They do not require fixings (i.e. clamps, adhesives) to be installed, however weighing down with a sandbag is recommended. They are best located away from foot traffic to avoid being bumped. The units record numerical vibration levels. The data is accessed remotely via the 3G network. If a preset monitoring trigger level is exceeded, it will alert the monitoring manager.

Construction noise will be measured using a Svantek SV307 Noise Monitoring Terminal (NMT). An external microphone will be placed on the outside of the façade that faces the construction works. The unit records numerical noise levels. The data is accessed remotely via the 3G mobile phone network. If a preset monitoring trigger level is exceeded, it will capture a short audio recording and alert the monitoring manager.

Review of the monitoring data and audio may help identify the source and inform construction methodology, mitigation opportunities and communication.

With mains power, the units operate autonomously, only requiring access for yearly maintenance and calibration. The units use a conventional house plug and draw between 2 and 3.6 watts of power, which is similar to a mobile phone charger.

Alert Response

A separate document will detail the people who are setup to receive the text and/or email alerts, provides access to the vibration web monitoring system, and the alert response protocol. It will be provided separately from this SSCNVMP because it contains sensitive information.

C1.6 Contingency Measures

As required by CRL designation condition 40.11, where any of the noise and vibration limits for Studio 1 in conditions 35.2, 35.3, 35.7 and 35.8 are exceeded, and where the noise and/or vibration levels are unacceptable to MediaWorks, the following corrective action measures shall apply:

• Cease the work giving rise to the exceedance as soon as safe and practicable to do so

• Review the construction methodology, mitigation and management strategies to ensure they represent the BPO and reduce the noise or vibration levels

• Monitor to determine compliance once the remediation works are complete

• Ensure that the work responsible for the exceedance is not recommenced during Sensitive Times

C1.7 Review Process

This SSCNVMP will be updated in accordance with CRL designation condition 40.13, with consideration given to the following:

• The extent to which noise and/or vibration may exceed the designation noise standards

• The timing and duration of any exceedance

• The type of activity causing any exceedance

• A summary of the communication and consultation with the MediaWorks

• The methods and measures to mitigate noise and/or vibration effects

• A statement of why they reflect best practicable option

Communications records are contained in the communication and consultation plan (CCP). This SSCNVMP will be updated to summarise engagement and any agreed site-specific measures.

C2 12-14 Nikau Street SSCNMP

C2.1 Introduction

This Site Specific Construction Noise Management Plan (SSCNMP) is for the residential building located at 12-14 Nikau Street. A SSCNMP is required because construction is predicted to exceed the standards in CRL designation condition 31.

This SSCNMP has been prepared in accordance with CRL designation condition 37 and is Appendix C2 of the Mt Eden Enabling Works Construction Noise and Vibration Delivery Work Plan (CNV DWP). It is a supplementary document that builds on the CNV DWP, and therefore directly references relevant sections of the CNV DWP to avoid repetition. The objective of this SSCNMP is to detail the best practicable option(s) to avoid, remedy or mitigate the identified adverse effects from noise exceedances at 12-14 Nikau Street.

This SSCNMP has been prepared for the Link Alliance and forms part of the Construction Environmental Management Plan (CEMP) for the Mt Eden Station Enabling Works.

C2.2 Engagement

Link Alliance representatives Sonya Leahy, Thibaut L'Hopital, Rick Galli, Aidan Kirkby-McLeod and Craig Fitzgerald met with Rod Pratt (building owner) on 3 September 2019. The matters discussed included:

• An overview of the project

• General programme, demolition, piling, rock breaking/blasting and tunnelling activities

• Overview of the CNV DWP and this SSCNMP, communications triggers and protocol

• Building layout and identification of any noise sensitive spaces

The double level commercial building has been converted into a block of 13 residential units above a basement car park. The neighbouring building will be demolished to maintain access to Flower and Shaddock Streets. It is adjacent to the portal piling and excavation works.

Figures B 1 and B.3 in Appendix B of the CNV DWP shows that the south façade is predicted to be exposed to noise levels between 75 – 80 dB LAeq during the closest demolition and bored piling activities, exceeding the 75 dB LAeq noise limit. Activity specific mitigation and management measures are included in Section 7 of the CNV DWP and not repeated here (e.g. Section 7.8 piling).

The building has a concrete block wall with no windows on the western façade facing the works, which will mitigate noise received inside adjacent apartments. The north and south façades include operable glazing and appear to have a shallow pitched steel roof. The estimated sound level difference across the façade with the windows and doors closed is in excess of 30 decibels. The predicted construction noise effects from Table 10-1 in Section 10.1 are predicted to be typically acceptable, but with the potential for some disturbance in the western most apartments during demolition of the neighbouring building.

Tunnelling activities have the potential to generate vibration induced reradiated noise (a low frequency rumble). The vibration transfer function will need to be established once the project starts as it cannot be readily predicted with any accuracy. This will be monitored to ensure compliance and inform effects on sleep.

Mr Pratt agreed that prior communication of timeframes for works with the potential to exceed the relevant noise limits was an acceptable means of managing effects. No further activity specific consultation is necessary over and above regular communication (Section 8)

C2.3 Review Process

If Mr Pratt requests consultation in the future, this SSCNMP will be updated in accordance with condition 37.5, with consideration given to the following:

• The extent to which noise may exceed the designation standards

• The timing and duration of any exceedance

• The type of activity causing any exceedance

• A summary of the communication and consultation with the receiver

• The methods and measures to mitigate effects

• A statement of why they reflect best practicable option

Communications records are contained in the communication and consultation plan (CCP). This SSCNMP will be updated to summarise engagement and any agreed site-specific measures.

C3 10 Flower Street SSCNVMP

C3.1

Introduction

This Site Specific Construction Noise and Vibration Management Plan (SSCNVMP) is for the residential building located at 10 Flower Street. A SSCNVMP is required because construction is predicted to exceed the standards in CRL designation conditions 31 and 32.

This SSCNVMP has been prepared in accordance with CRL designation conditions 37 and 38 and is Appendix C3 of the CRL Mt Eden Enabling Works Construction Noise and Vibration Delivery Work Plan (CNV DWP). It is a supplementary document that builds on the CNV DWP, and therefore directly references relevant sections of the CNV DWP to avoid repetition. The objective of this SSCNVMP is to detail the best practicable option(s) to avoid, remedy or mitigate the identified adverse effects from noise and/or vibration exceedances at 10 Flower Street.

This SSCNVMP has been prepared for the Link Alliance and forms part of the Construction Environmental Management Plan (CEMP) for the Mt Eden Station Enabling Works.

C3.2

Engagement

Link Alliance representatives Sonya Leahy, Thibaut L'Hopital, Aidan Kirkby-McLeod, Duncan Whyte and Craig Fitzgerald met with building representative Wayne Brown (building manger) on 5 September 2019. The matters discussed included:

• An overview of the project

• General programme, demolition, piling, rock breaking/blasting and tunnelling activities

• Overview of the CNV DWP and this SSCNVMP, communications triggers and protocol

The modern multi-level terraced apartment building features basement car parking beneath three levels of apartments with balconies on all sides. The car parking basement is block and concrete tilt slab construction. The apartments above are a built with a timber structure. There are 42 apartments in total.

Figures B 1 – B.7 in Appendix B of the CNV DWP shows that the south and west façades are predicted to be exposed to noise levels between 75 – 80 dB LAeq during the closest demolition, bored piling, rock breaking and vibro piling activities, exceeding the 75 dB LAeq noise limit. Activity specific mitigation and management measures are included in Section 7 of the CNV DWP and not repeated here (e.g. Section 7.7 concrete and rock breaking and 7.8 piling).

The top floor apartments (most exposed to site noise) are primarily occupied by university students. Mr Brown commented that the scheduling of blasting activities, indicatively timetabled for February – March 2020, would avoid normal exam study periods. There are 5 families, but only one is located on the most exposed western façade at first level. The perimeter site hoardings will effectively mitigate noise for this family.

The building façade features fibre cement cladding, well-sealed operable glazing and a flat steel roof. The estimated sound level difference across the façade with the windows and doors closed is 25 – 30 decibels. The predicted construction noise effects from Table 10-1 in Section 10.1 are predicted to be typically acceptable, but with the potential for some disturbance in the apartments on the south and west façades during the demolition, portal construction and rock removal works.

Preliminary blasting vibration level predictions (Section 6.3) identify that there is potential to exceed the residential cosmetic building damage thresholds. Cosmetic building damage effects are deemed ‘minor damage’ in the DIN Standard (Section 5.2), such as cracking in paint or plasterwork, and can generally be easily repaired. A pre-construction building condition survey in accordance with condition 46 will ensure any damage is identified for remediation.

Mr Brown agreed that prior communication of timeframes for works with the potential to exceed the relevant noise limits was an acceptable means of managing effects. No further activity specific consultation is necessary over and above regular communication (Section 8).

C3.3 Review Process

If Mr Brown or affected site representatives requests consultation in the future, this SSCNVMP will be updated in accordance with CRL designation conditions 37.5 and 38.5, with consideration given to the following:

• The extent to which noise may exceed the designation standards

• The timing and duration of any exceedance

• The type of activity causing any exceedance

• A summary of the communication and consultation with the receiver

• The methods and measures to mitigate effects

• A statement of why they reflect best practicable option

Communications records are contained in the communication and consultation plan (CCP). This SSCNVMP will be updated to summarise engagement and any agreed site-specific measures.

C4 10 Ruru Street SSCNVMP

C4.1

Introduction

This Site Specific Construction Noise and Vibration Management Plan (SSCNVMP) is for the residential building located at 10 Ruru Street. A SSCNVMP is required because construction is predicted to exceed the standards in CRL designation conditions 31 and 32.

This SSCNVMP has been prepared in accordance with CRL designation conditions 37 and 38 and is Appendix C4 of the Mt Eden Enabling Works Construction Noise and Vibration Delivery Work Plan (CNV DWP). It is a supplementary document that builds on the CNV DWP, and therefore directly references relevant sections of the CNV DWP to avoid repetition. The objective of this SSCNVMP is to detail the best practicable option(s) to avoid, remedy or mitigate the identified adverse effects from noise and/or vibration exceedances at 10 Ruru Street.

This SSCNVMP has been prepared for the Link Alliance and forms part of the Construction Environmental Management Plan (CEMP) for the Mt Eden Station Enabling Works.

C4.2

Engagement

Link Alliance representatives Sonya Leahy, Thibaut L'Hopital, Aidan Kirkby-McLeod, Duncan Whyte and Craig Fitzgerald met with site representatives Dr Helen Gaeta and Megan Ottley on 4 September 2019. The matters discussed included:

• An overview of the project

• General programme, demolition, piling, rock breaking/blasting and tunnelling activities

• Overview of the CNV DWP and this SSCNMP, communications triggers and protocol

The basement level fronting Nikau St is a storage business and car park (activities are not considered noise sensitive), above which double level townhouses (noise sensitive when occupied) encircle a common courtyard area.

Figure B 5 in Appendix B of the CNV DWP shows that the south façade is predicted to be exposed to noise levels between 75 – 80 dB LAeq during the closest rock breaking activities, exceeding the 75 dB LAeq noise limit. Activity specific mitigation and management measures are included in Section 7 of the CNV DWP and not repeated here (e.g. Section 7.7 concrete and rock breaking).

The townhouses have linear weatherboard façades with operable glazing and a steel pitched roof. The estimated sound level difference across the façade with the windows and doors closed is 30 decibels. The predicted construction noise effects from Table 10-1 in Section 10.1 are predicted to be typically acceptable, but with the potential for some disturbance in the southern most apartments during the closest rock breaking works

Preliminary blasting vibration level predictions (Section 6.3) identify that there is potential to exceed the residential cosmetic building damage thresholds. Cosmetic building damage effects are deemed ‘minor damage’ in the DIN Standard (Section 5.2), such as cracking in paint or plasterwork, and can generally be easily repaired. A pre-construction building condition survey will in accordance with condition 46 to ensure any damage is identified for remediation. This is the same process implemented for the previous C6 blasting works on the corner of Nikau and Ruru Streets.

Dr Gaeta and Ms Ottley agreed that prior communication of timeframes for works with the potential to exceed the relevant noise limits was an acceptable means of managing effects.

No further activity specific consultation is necessary over and above regular communication (Section 8).

C4.3 Review Process

If Dr Gaeta and Ms Ottley or affected site representatives request consultation in the future, this SSCNVMP will be updated in accordance with CRL designation conditions 37.5 and 38.5, , with consideration given to the following:

• The extent to which noise may exceed the designation standards

• The timing and duration of any exceedance

• The type of activity causing any exceedance

• A summary of the communication and consultation with the receiver

• The methods and measures to mitigate effects

• A statement of why they reflect best practicable option

Communications records are contained in the communication and consultation plan (CCP). This SSCNVMP will be updated to summarise engagement and any agreed site-specific measures.

C5 24 House of Knives SSCNMP

C5.1 Introduction

This Site Specific Construction Noise Management Plan (SSCNMP) is for the commercial building located at 24 Mt Eden Road. A SSCNMP is required because construction is predicted to exceed the noise standards in CRL designation condition 31.

This SSCNMP has been prepared in accordance with CRL designation condition 37 and is Appendix C5 of the Mt Eden Enabling Works Construction Noise and Vibration Delivery Work Plan (CNV DWP). It is a supplementary document that builds on the CNV DWP, and therefore directly references relevant sections of the CNV DWP to avoid repetition. The objective of this SSCNMP is to detail the best practicable option(s) to avoid, remedy or mitigate the identified adverse effects from noise exceedances at 24 Mt Eden Road.

This SSCNMP has been prepared for the Link Alliance and forms part of the Construction Environmental Management Plan (CEMP) for the Mt Eden Station Enabling Works.

C5.2

Engagement

Link Alliance representatives Sonya Leahy, Thibaut L'Hopital, Aidan Kirkby-McLeod, Duncan Whyte and Craig Fitzgerald (Marshall Day Acoustics) met with John Fryer on 11 September 2019. The matters discussed included:

• An overview of the project

• General programme, demolition, piling and rock breaking/blasting activities

• Overview of the CNV DWP and this SSCNMP, communications triggers and protocol

The site is used for commercial purposes, with the House of Knives cookware shop fronting Mt Eden Road. Shop opening hours are generally 9.30am – 5pm, Monday to Saturday. Mr Fryer voiced concerns about vibration associated with previous C6 piling works. From Mr Fryer’s description, the source of the vibration was from vibrated pile casings installed on the adjacent site and from vertically dropping an auger from height onto the ground. Mr Fryer was advised that vibro piling was not part of the current piling methodology for the new Mt Eden Road bridge and that dropping an auger bit was most likely avoidable with good practice.

Figure B 4 in Appendix B of the CNV DWP shows that the south and west façades are predicted to be exposed to noise levels between 75 – 80 dB LAeq during the closest bored piling activities, exceeding the 75 dB LAeq noise limit. Activity specific mitigation and management measures are included in Section 7 of the CNV DWP and not repeated here (e.g. Section 7.8 piling).

The buildings at 24 Mt Eden Road are primarily single story with either weatherboard or brick façades, operable glazing and a steel pitched roof. The estimated sound level difference across the façade with the windows and doors closed is 25 decibels. The predicted construction noise effects from Table 10-1 in Section 10.1 are predicted to be typically acceptable, but with the potential for some disturbance during installation of the closest bridge piling and demolition works.

During further consultation on 10 October 2018, a pre construction building condition survey in accordance with condition 46 will be undertaken to provide confidence that any vibration damage is identified for remediation.

Mr Fryer agreed that prior communication of timeframes for works with the potential to exceed the relevant noise limits was an acceptable means of managing effects. No further activity specific consultation is necessary over and above regular communication (refer Section 8).

C5.3 Review Process

If Mr Fryer requests consultation in the future, this SSCNMP will be updated in accordance with CRL designation condition 37.5, with consideration given to the following:

• The extent to which noise may exceed the designation noise standards

• The timing and duration of any exceedance

• The type of activity causing any exceedance

• A summary of the communication and consultation with the receiver

• The methods and measures to mitigate noise effects

• A statement of why they reflect best practicable option

Communications records are contained in the communication and consultation plan (CCP). This SSCNMP will be updated to summarise engagement and any agreed site-specific measures.

C6 110 New North Road SSCNMP

C6.1

Introduction

This Site Specific Construction Noise Management Plan (SSCNMP) is for the commercial building located at 110 New North Road occupied by Soar printing. A SSCNMP is required because construction is predicted to exceed the noise standards in CRL designation condition 31.

This SSCNMP has been prepared in accordance with CRL designation condition 37 and is Appendix C6 of the Mt Eden Enabling Works Construction Noise and Vibration Delivery Work Plan (CNV DWP). It is a supplementary document that builds on the CNV DWP, and therefore directly references relevant sections of the CNV DWP to avoid repetition. The objective of this SSCNMP is to detail the best practicable option(s) to avoid, remedy or mitigate the identified adverse effects from noise exceedances at 110 New North Road.

This SSCNMP has been prepared for the Link Alliance and forms part of the Construction Environmental Management Plan (CEMP) for the Mt Eden Station Enabling Works.

C6.2

Engagement

In the absence of contact details, Link Alliance representatives Jarrod Snowsill and Craig Fitzgerald spoke to reception staff member on the door on 29 August 2019. Unfortunately, the appropriate person was not available. A general information pack with contact details was left with the intention that the appropriate staff member would call back. No response has been received to date to undertake further consultation.

Figure B 5 in Appendix B of the CNV DWP shows that the south façade is predicted to be exposed to noise levels between 75 – 80 dB LAeq during the rock breaking activities, exceeding the 75 dB LAeq noise limit. Activity specific mitigation and management measures are included in Section 7 of the CNV DWP and not repeated here (e.g. Section 7.7 concrete and rock breaking).

The building is occupied by Soar printing. They have printing and warehousing areas on the south façade, closest to the works. Office areas on the upper level of the northern building look over the southern printing and warehouse building. The estimated sound level difference across the façade with the windows and doors closed is 25 decibels. The predicted construction noise effects from Table 10-1 in Section 10.1 are predicted to be typically acceptable, but with the potential for some disturbance in the western most apartments during demolition of the neighbouring building.

Consultation engagement has not been successful to date. Prior communication of timeframes for works with the potential to exceed the relevant noise limits will be provided where practicable (Section 8).

C6.3 Review Process

If the property representatives requests consultation in the future, this SSCNMP will be updated in accordance with CRL designation condition 37.5, with consideration given to the following:

• The extent to which noise may exceed the designation noise standards

• The timing and duration of any exceedance

• The type of activity causing any exceedance

• A summary of the communication and consultation with the receiver

• The methods and measures to mitigate noise effects

• A statement of why they reflect best practicable option

Communications records are contained in the communication and consultation plan (CCP). This SSCNMP will be updated to summarise engagement and any agreed site-specific measures.

C7 75 Mt Eden Road SSCNMP

C7.1

Introduction

This Site Specific Construction Noise Management Plan (SSCNMP) is for the commercial building located at 75 Mt Eden Road. A SSCNMP is required because construction is predicted to exceed the noise standards in CRL designation condition 31.

This SSCNMP has been prepared in accordance with CRL designation condition 37 and is Appendix C7 of the Mt Eden Enabling Works Construction Noise and Vibration Delivery Work Plan (CNV DWP). It is a supplementary document that builds on the CNV DWP, and therefore directly references relevant sections of the CNV DWP to avoid repetition. The objective of this SSCNMP is to detail the best practicable option(s) to avoid, remedy or mitigate the identified adverse effects from noise exceedances at 75 Mt Eden Road.

This SSCNMP has been prepared for the Link Alliance and forms part of the Construction Environmental Management Plan (CEMP) for the Mt Eden Station Enabling Works.

C7.2

Engagement

Link Alliance representatives Jarrod Snowsill and Craig Fitzgerald met with Brian Jong (Bok Mart) and Louise Wightman (Adsel) on 29 August 2019. The basement office of Glass Resources was unoccupied. The matters discussed included:

• An overview of the project

• General project programme, demolition and rock breaking/blasting activities

• Overview of the CNV DWP and this SSCNMP, communications triggers and protocol

• Building layout and identification of any noise sensitive spaces

Bok Mart operate a supermarket on the top floor of the building, accessed from Mt Eden Road. Their most noise sensitive areas relate to the shop front areas opening out to Mt Eden Road. The areas at the back of the shop, overlooking the works are not noise sensitive.

Adsel operated an office from the basement level, accessed from 6 Shaddock Street. They were in the process of moving out, with their tenancy finishing in May 2020 (unoccupied in the meantime). Their sub tenant, Glass Resources was not available.

Figure B 5 in Appendix B of the CNV DWP shows that the south façade is predicted to be exposed to noise levels between 75 – 80 dB LAeq during the closest rock breaking activities, exceeding the 75 dB LAeq noise limit. Activity specific mitigation and management measures are included in Section 7 of the CNV DWP and not repeated here (e.g. Section 7.7 concrete and rock breaking).

The concrete building has operable glazing and a flat steel roof. The estimated sound level difference across the façade with the windows and doors closed is 25 – 30 decibels. The predicted construction noise effects from Table 10-1 in Section 10.1 are predicted to be typically acceptable, but with the potential for some disturbance for nearby rock breaking

Mr Jong agreed that prior communication of timeframes for works with the potential to exceed the relevant noise limits was an acceptable means of managing effects. No further activity specific consultation is necessary over and above regular communication (Section 8).

C7.3 Review Process

If Mr Jong requests consultation in the future, this SSCNMP will be updated in accordance with CRL designation condition 37.5, with consideration given to the following:

• The extent to which noise may exceed the designation noise standards

• The timing and duration of any exceedance

• The type of activity causing any exceedance

• A summary of the communication and consultation with the receiver

• The methods and measures to mitigate noise effects

• A statement of why they reflect best practicable option

Communications records are contained in the communication and consultation plan (CCP). This SSCNMP will be updated to summarise engagement and any agreed site-specific measures.

C8 83 Mt Eden Road SSCNMP

C8.1

Introduction

This Site Specific Construction Noise Management Plan (SSCNMP) is for the commercial building located at 83 Mt Eden Road. A SSCNMP is required because construction is predicted to exceed the noise standards in CRL designation condition 31.

This SSCNMP has been prepared in accordance with CRL designation condition 37 and is Appendix C8 of the Mt Eden Enabling Works Construction Noise and Vibration Delivery Work Plan (CNV DWP). It is a supplementary document that builds on the CNV DWP, and therefore directly references relevant sections of the CNV DWP to avoid repetition. The objective of this SSCNMP is to detail the best practicable option(s) to avoid, remedy or mitigate the identified adverse effects from noise exceedances at 83 Mt Eden Road.

This SSCNMP has been prepared for the Link Alliance and forms part of the Construction Environmental Management Plan (CEMP) for the Mt Eden Station Enabling Works.

C8.2

Engagement

Link Alliance representatives Jarrod Snowsill and Craig Fitzgerald met with Steve Bohling (MPM) on 29 August 2019. The matters discussed included:

• An overview of the project

• General project programme, demolition and rock breaking/blasting activities

• Overview of the CNV DWP and this SSCNMP, communications triggers and protocol

• Building layout and identification of any noise sensitive spaces

MPM offices occupy the middle level of the building, facing west over the works. The top floor is unoccupied (for lease) and the basement level was unoccupied during the visit, but is understood to be occasionally occupied by Direct Control.

MPM were previously opposite the C6 site in Shaddock Street. There main concern was rock breaking and blasting vibration effects on their building and stock of cameras. It was explained that they would feel vibration, however, it is currently not predicted to be at a level that would require pre-construction building condition survey or effect stored cameras. However, triggers in the CNV DWP and monitoring during these events would inform the need for such steps.

Figure B 5 in Appendix B of the CNV DWP shows that the south façade is predicted to be exposed to noise levels between 75 – 80 dB LAeq during the closest rock breaking activities, exceeding the 75 dB LAeq noise limit. Activity specific mitigation and management measures are included in Section 7 of the CNV DWP and not repeated here (e.g. Section 7.7 concrete and rock breaking).

The concrete building has operable glazing and a shallow pitched steel roof. The estimated sound level difference across the façade with the windows and doors closed is 25 – 30 decibels. The predicted construction noise effects from Table 10.1 in Section 10.1 are predicted to be typically acceptable, but with the potential for some disturbance for nearby rock breaking.

Mr Bohling agreed that prior communication of timeframes for works with the potential to exceed the relevant noise limits was an acceptable means of managing effects. No further activity specific consultation is necessary over and above regular communication (Section 8).

C8.3 Review Process

If Mr Bohling requests consultation in the future, this SSCNMP will be updated in accordance with CRL designation condition 37.5, with consideration given to the following:

• The extent to which noise may exceed the designation noise standards

• The timing and duration of any exceedance

• The type of activity causing any exceedance

• A summary of the communication and consultation with the receiver

• The methods and measures to mitigate noise effects

• A statement of why they reflect best practicable option

Communications records are contained in the communication and consultation plan (CCP). This SSCNMP will be updated to summarise engagement and any agreed site-specific measures.

C9 2 Porters Ave SSCNVMP

C9.1 Introduction

This Site Specific Construction Noise and Vibration Management Plan (SSCNVMP) is for the commercial building located at 2 Porters Ave. A SSCNVMP is required because construction is predicted to exceed the standards in CRL designation conditions 31 and 33.

This SSCNVMP has been prepared in accordance with CRL designation condition 37 and is Appendix C9 of the Mt Eden Enabling Works Construction Noise and Vibration Delivery Work Plan (CNV DWP). It is a supplementary document that builds on the CNV DWP, and therefore directly references relevant sections of the CNV DWP to avoid repetition. The objective of this SSCNVMP is to detail the best practicable option(s) to avoid, remedy or mitigate the identified adverse effects from noise and vibration exceedances at 2 Porters Ave.

This SSCNVMP has been prepared for the Link Alliance and forms part of the Construction Environmental Management Plan (CEMP) for the Mt Eden Station Enabling Works.

C9.2 Engagement

In the absence of contact details, Link Alliance representatives Duncan Whyte, Hilary Konigkramer and Richard Deane knocked on the door on 10 September 2019. Unfortunately, there was no answer. A general information pack with contact details was left. No response has been received to date to undertake further consultation.

Rock breaking activities are required in close proximity to this building for short periods.

Figures B 7 and B.8 in Appendix B of the CNV DWP predict rock breaking noise levels of up to 80 – 90 dB LAeq on the west façade. While this significantly exceeds the 75 dB LAeq noise limit, levels will reduce rapidly as works migrate away. Other utilities works will generally be compliant. Activity specific mitigation and management measures are included in Section 7 of the CNV DWP and not repeated here (e.g. Section 7.7 concrete and rock breaking).

The concrete building has small areas of glazing, a roller door and a shallow pitched steel roof. The estimated sound level difference across the façade with the windows and doors closed is 20 – 30 decibels. The predicted construction noise effects from Table 10.1 in Section 10.1 are predicted to result in short-term disturbance.

Preliminary large excavator mounted rock breaker vibration level predictions (Section 6.2) identify that there is also potential to exceed the commercial cosmetic building damage thresholds and will be clearly perceptible. Cosmetic building damage effects are deemed ‘minor damage’ in the DIN Standard (Section 5.2), such as cracking in paint or plasterwork, and can generally be easily repaired. A pre construction building condition survey in accordance with condition 46 will ensure any damage is identified for remediation.

Consultation engagement has not been successful to date. Prior communication of timeframes for works with the potential to exceed the relevant noise limits will be provided where practicable (Section 8).

C9.3 Review Process

If the property representatives request consultation in the future, this SSCNVMP will be updated in accordance with CRL designation conditions 37.5 and 38.5, with consideration given to the following:

• The extent to which noise may exceed the designation standards

• The timing and duration of any exceedance

• The type of activity causing any exceedance

• A summary of the communication and consultation with the receiver

• The methods and measures to mitigate effects

• A statement of why they reflect best practicable option

Communications records are contained in the communication and consultation plan (CCP). This SSCNVMP will be updated to summarise engagement and any agreed site-specific measures.

C10 3 Porters Ave SSCNVMP

C10.1 Introduction

This Site Specific Construction Noise and Vibration Management Plan (SSCNVMP) is for the commercial building located at 3 Porters Ave. A SSCNVMP is required because construction is predicted to exceed the standards in CRL designation conditions 31 and 33.

This SSCNVMP has been prepared in accordance with CRL designation condition 37 and is Appendix C10 of the Mt Eden Enabling Works Construction Noise and Vibration Delivery Work Plan (CNV DWP). It is a supplementary document that builds on the CNV DWP, and therefore directly references relevant sections of the CNV DWP to avoid repetition. The objective of this SSCNVMP is to detail the best practicable option(s) to avoid, remedy or mitigate the identified adverse effects from noise and vibration exceedances at 3 Porters Ave.

This SSCNVMP has been prepared for the Link Alliance and forms part of the Construction Environmental Management Plan (CEMP) for the Mt Eden Station Enabling Works.

C10.2 Engagement

Link Alliance representatives Duncan Whyte, Hilary Konigkramer and Richard Deane knocked on the door on 10 September 2019. Unfortunately, there was no answer. A general information pack with contact details was left. No response has been received to date to undertake further consultation.

Rock breaking activities are required in close proximity to this building for short periods. Figures B 7 and B.8 in Appendix B of the CNV DWP predict rock breaking noise levels of up to 75 – 85 dB LAeq on the west façade. While this exceeds the 75 dB LAeq noise limit, levels will reduce rapidly as works migrate away. Other utilities works will generally be compliant. Activity specific mitigation and management measures are included in Section 7 of the CNV DWP and not repeated here (e.g. Section 7.7 concrete and rock breaking).

The concrete building is occupied by Kennards Self Storage. The office areas are located on the north side of the building, facing away from the works at ground floor level. The predicted construction noise effects from Table 10.1 in Section 10.1 are predicted to be typically acceptable, but with the potential for some disturbance for nearby rock breaking.

Preliminary large excavator mounted rock breaker vibration level predictions (Section 6.2) identify that there is also potential to exceed the commercial cosmetic building damage thresholds. Cosmetic building damage effects are deemed ‘minor damage’ in the DIN Standard (Section 5.2), such as cracking in paint or plasterwork, and can generally be easily repaired. A pre-construction building condition survey in accordance with condition 46 will ensure any damage is identified for remediation.

Consultation engagement has not been successful to date. Prior communication of timeframes for works with the potential to exceed the relevant noise limits will be provided where practicable (Section 8).

C10.3 Review Process

If the property representatives request consultation in the future, this SSCNVMP will be updated in accordance with CRL designation conditions 37.5 and 38.5, with consideration given to the following:

• The extent to which noise may exceed the designation standards

• The timing and duration of any exceedance

• The type of activity causing any exceedance

• A summary of the communication and consultation with the receiver

• The methods and measures to mitigate effects

• A statement of why they reflect best practicable option

Communications records are contained in the communication and consultation plan (CCP). This SSCNVMP will be updated to summarise engagement and any agreed site-specific measures.

C11 4 Porters Ave SSCNVMP

C11.1 Introduction

This Site Specific Construction Noise and Vibration Management Plan (SSCNVMP) is for the commercial building located at 4 Porters Ave. A SSCNVMP is required because construction is predicted to exceed the standards in CRL designation conditions 31 and 33.

This SSCNVMP has been prepared in accordance with CRL designation condition 37 and is Appendix C11 of the Mt Eden Enabling Works Construction Noise and Vibration Delivery Work Plan (CNV DWP). It is a supplementary document that builds on the CNV DWP, and therefore directly references relevant sections of the CNV DWP to avoid repetition. The objective of this SSCNVMP is to detail the best practicable option(s) to avoid, remedy or mitigate the identified adverse effects from noise and vibration exceedances at 4 Porters Ave.

This SSCNVMP has been prepared for the Link Alliance and forms part of the Construction Environmental Management Plan (CEMP) for the Mt Eden Station Enabling Works.

C11.2 Engagement

Link Alliance representatives Duncan Whyte, Hilary Konigkramer and Richard Deane met with Minka Johnson IP (ADFW) on 10 September 2019 The matters discussed included:

• An overview of the project

• General programme of works, rock breaking activities

• Overview of the CNV DWP and this SSCNVMP, communications triggers and protocol

• Building layout and identification of any noise sensitive spaces/activities

Whilst ADFW own the building, they share the ground floor and 1st Level with 3 other businesses (jade sculptor, metal worker, fashion designer respectively) ADFW themselves fabricate models for architecture and design.

Rock breaking activities are required in close proximity to this building for short periods.

Figures B 7 and B.8 in Appendix B of the CNV DWP predict rock breaking noise levels of up to 80 – 90 dB LAeq on the west façade. While this significantly exceeds the 75 dB LAeq noise limit, levels will reduce rapidly as works migrate away. Other utilities works will generally be compliant. Activity specific mitigation and management measures are included in Section 7 of the CNV DWP and not repeated here (e.g. Section 7.7 concrete and rock breaking).

The concrete building has small areas of glazing, a roller door and a shallow pitched steel roof. The estimated sound level difference across the façade with the windows and doors closed is 20 – 30 decibels. The predicted construction noise effects from Table 10.1 in Section 10.1 are predicted to result in short-term noise disturbance.

Preliminary large excavator mounted rock breaker vibration level predictions (Section 6.2) identify that there is also potential to exceed the commercial cosmetic building damage thresholds and will be clearly perceptible. Cosmetic building damage effects are deemed ‘minor damage’ in the DIN Standard (Section 5.2), such as cracking in paint or plasterwork, and can generally be easily repaired. A pre-construction building condition survey in accordance with condition 46 will ensure any damage is identified for remediation.

Minka Johnson IP agreed that prior communication of timeframes for works with the potential to exceed the relevant noise limits was an acceptable means of managing effects.

No further activity specific consultation is necessary over and above regular communication (Section 8)

C11.3 Review Process

If Minka Johnson IP, or other building representatives, this SSCNVMP will be updated in accordance with CRL designation conditions 37.5 and 38.5, with consideration given to the following:

• The extent to which noise may exceed the designation standards

• The timing and duration of any exceedance

• The type of activity causing any exceedance

• A summary of the communication and consultation with the receiver

• The methods and measures to mitigate effects

• A statement of why they reflect best practicable option

Communications records are contained in the communication and consultation plan (CCP). This SSCNVMP will be updated to summarise engagement and any agreed site-specific measures.

C12 5 Porters Ave SSCNVMP

C12.1 Introduction

This Site Specific Construction Noise and Vibration Management Plan (SSCNVMP) is for the commercial building located at 5 Porters Ave. A SSCNVMP is required because construction is predicted to exceed the standards in CRL designation conditions 31 and 33

This SSCNVMP has been prepared in accordance with CRL designation condition 37 and is Appendix C12 of the Mt Eden Enabling Works Construction Noise and Vibration Delivery Work Plan (CNV DWP). It is a supplementary document that builds on the CNV DWP, and therefore directly references relevant sections of the CNV DWP to avoid repetition. The objective of this SSCNVMP is to detail the best practicable option(s) to avoid, remedy or mitigate the identified adverse effects from noise and vibration exceedances at 5 Porters Ave

As required under CRL designation conditions 37.5 and 38.5, Section C12.3 presents:

• The extent to which noise may exceed the designation standards (Table C12.3.1)

• The timing and duration of any exceedance (Table C12.3.1)

• The type of activity causing any exceedance (Table C12.3.1)

• A summary of the communication and consultation with the receiver (Table C12.3.2)

• The methods and measures to mitigate effects (Table C12.3.3)

• A statement of why they reflect best practicable option (Table C12.3.3)

This SSCNVMP has been prepared for the Link Alliance and forms part of the Construction Environmental Management Plan (CEMP) for the Mt Eden Station Enabling Works.

C12.2 Engagement

The building is a three-level office block with underground carpark. The façade incorporates vertical concrete columns with float glass façade, and plastered hardboard lintels. There are balconies with doors on the eastern façade. The estimated sound level difference across the façade in general is 20 – 25 decibels with balcony doors closed. The predicted construction noise effects from Table 10.1 in Section 10.1 are predicted to result in significant noise disturbance.

ADHB have recently completed a fitout of the building for use as a mental health support clinic. It will house offices, therapy rooms, a call centre, quiet rooms and other staff and patient-oriented facilities.

It is understood that patients will visit the clinic generally during business hours, but some staff will regularly work into the late evening and emergency care situations may arise from time to time.

Rock breaking activities are required in close proximity to this building for weeks at time –cumulatively up to 3 months. Figures B.7 and B.8 in Appendix B of the CNV DWP predict rock breaking noise levels of up to 80 – 90 dB LAeq on the east façade. This significantly exceeds the 75 dB LAeq noise limit, when works are occurring directly outside. Levels will reduce rapidly as works migrate away. Other utilities works will generally be compliant.

The work will take place in stages, specifically trenching, tie-ins, soak pits and road reinstatement. Each stage will require periods of rock breaking.

Preliminary large excavator mounted rock breaker vibration level predictions (Section 6.2) identify that there is also potential to exceed the commercial cosmetic building damage thresholds and will be clearly perceptible. Cosmetic building damage effects are deemed ‘minor damage’ in the DIN Standard (Section 5.2), such as cracking in paint or plasterwork, and can generally be easily repaired. A pre-construction building condition survey and monitoring during construction in accordance with condition 46 will ensure any damage is identified for remediation.

In previous meetings with C5 personnel, the potential to upgrade the building façade (secondary glazing, improved internal linings etc.) was discussed. The Link Alliance have committed to providing this, on the basis that this receiver is unique in its noise and vibration sensitivity. The potential impact of construction effects on mental-health patients is incalculable, so non-typical mitigation measures are justified.

These upgrades are not intended to achieve a particular internal level, but are considered the BPO for minimising noise. We expect there will still be impacts on the building occupants at times.

C12.3 Activity Detail Communication and Consultation

Regular consultation will be required prior to, and during, construction. Table C13.3.2 provides a summary of consultation with the building owner and ADHB, and identifies agreed methods and measures to mitigate noise effects and a statement of why they reflect best practicable option.

Table C12.3.1: Activity Detail

External noise level: Façade performance:

Internal noise level: Potential noise effects: Fenton St and Wynyard Rd 80 – 90 dB

Estimated 20 dB (balcony doors are not well-sealed)

Estimated 60 – 70 dB

Difficulty concentrating and communicating in therapy rooms, offices and telecommunications

Impact on patients’ wellbeing

2

Location:

External noise level: Façade performance:

Internal noise level: Potential noise effects:

Rail corridor, Fenton St and Wynyard Rd 80 – 90 dB on north and east facades

North-façade: estimated 25 dB (predominantly glass with lightweight lintels)

East-façade: estimated 20 dB (balcony doors are not well-sealed)

Estimated 55 – 70 dB

Difficulty concentrating and communicating in therapy rooms, offices and telecommunications

Impact on patients’ wellbeing

3

Activity:

Period:

Duration: Days:

Hours: Rock breaking, blasting, piling Alliance to fill out

Location: Vibration level on building: Potential vibration effects:

Fenton St and Wynyard Rd > 10 mm/s PPV

Potential for cosmetic building damage to occur. Also, startle and loss of amenity effects for ADHB employees and patients Table C12.3.2: Communication and Consultation

1

Receiver:

Date:

Name:

Phone:

Email:

CRL rep:

ADHB – 5 Porters Ave

20 September 2019

Lynne Edmonds

Brendon Porter Alliance to fill out

Aidan Kirkby-McLeod

Sonya Leahy

Hilary Konigkramer

Philip Young

2

Receiver:

Date: Name: Phone:

Email: CRL rep:

Building owner – 5 Porters Ave

• An overview of the project, including presentation of the “what’s happening on site” leaflet

• A detailed programme of works, including blasting and rock breaking activities

• Overview of the CNV DWP and this SSCNVMP, communications triggers and protocol for monitoring and pre-construction building condition surveys

• Identification of noise sensitive activities – specifically the clinic patients, their particularly sensitivities to noise, patient consultations and phone calls

• Potential mitigation measures – secondary glazing and improving north-facing lintels

(Alliance to complete)

Table C12.3.3: Mitigation Measures

# Actions / specific mitigation measures

1 Development of SSCNVMP and improved communication re: timeframes and mitigation measures

2 Building condition survey prior to construction

3 Optimise design of barrier mitigation for concrete cutting, rock breaking etc. This may involve rolling enclosures, tilting barriers etc.

4 Long-term monitoring of noise and vibration levels

5 The following building modifications:

- Secondary glazing to north and north-east facing windows. Note – secondary glazing involves retro-fitting an acrylic pane inside the existing glazing, with an airgap of 50mm or more. It does not change the existing glazing

- Upgrading the sound insulation of the lintels (above ceiling level) to reduce sound entering offices via the ceiling path

C13 6 Porters Ave SSCNVMP

C13.1 Introduction

This Site Specific Construction Noise and Vibration Management Plan (SSCNVMP) is for the residential building located at 6 Porters Ave. A SSCNVMP is required because construction is predicted to exceed the standards in CRL designation conditions 31 and 33.

This SSCNVMP has been prepared in accordance with CRL designation condition 37 and is Appendix C13 of the Mt Eden Enabling Works Construction Noise and Vibration Delivery Work Plan (CNV DWP). It is a supplementary document that builds on the CNV DWP, and therefore directly references relevant sections of the CNV DWP to avoid repetition. The objective of this SSCNVMP is to detail the best practicable option(s) to avoid, remedy or mitigate the identified adverse effects from noise and vibration exceedances at 6 Porters Ave.

This SSCNVMP has been prepared for the Link Alliance and forms part of the Construction Environmental Management Plan (CEMP) for the Mt Eden Station Enabling Works.

C13.2 Engagement

Link Alliance representatives Sonya Leahy, Hilary Konigkramer, Aidan Kirby-McLeod, Phil Young and Craig Fitzgerald (Marshall Day Acoustics) met with building representative Diane Gribben (Body Corporate Chair of North Eden Apartments) and Daniel (Building manager) on 18 September 2019. The matters discussed included:

• An overview of the project

• General programme, demolition, blasting, rock breaking and utilities relocation activities

• Overview of the CNV DWP and this SSCNVMP, communications triggers and protocol and for monitoring and pre-construction building condition surveys

The modern multi-level terraced apartment building features basement car parking beneath 48 apartments across two buildings, some with balconies on the south side overlooking the rail corridor and worksite. There are approximately 2-3 families with young children.

Rock breaking activities are required in close proximity to this building for short periods.

Figures B 7 and B.8 in Appendix B of the CNV DWP predict rock breaking noise levels of up to 75 – 80 dB LAeq on the south façade and 80 – 90 dB LAeq on the west façade. While this significantly exceeds the 75 dB LAeq noise limit on the west façade, levels will reduce rapidly as works migrate away. Other utilities works will generally be compliant. Activity specific mitigation and management measures are included in Section 7 of the CNV DWP and not repeated here (e.g. Section 7.7 concrete and rock breaking).

The modern concrete building has well sealed openable glazing. The estimated sound level difference across the façade with the windows and doors closed is 25 – 30 decibels. The predicted construction noise effects from Table 10.1 in Section 10.1 are predicted to result in short-term noise disturbance

Preliminary excavator mounted rock breaker vibration level predictions (Section 6.2) identify that there is potential to exceed the commercial cosmetic building damage thresholds. Cosmetic building damage effects are deemed ‘minor damage’ in the DIN Standard (Section 5.2), such as cracking in paint or plasterwork, and can generally be easily repaired. A pre construction building condition survey in accordance with condition 46 will ensure any damage is identified for remediation.

Ms Gribben agreed that prior communication of timeframes for works with the potential to exceed the relevant noise limits was an acceptable means of managing effects. No further activity specific consultation is necessary over and above regular communication (Section 8)

C13.3 Review Process

If Ms Gribben or affected site representatives request consultation in the future, this SSCNVMP will be updated in accordance with CRL designation conditions 37.5 and 38.5, with consideration given to the following:

• The extent to which noise may exceed the designation standards

• The timing and duration of any exceedance

• The type of activity causing any exceedance

• A summary of the communication and consultation with the receiver

• The methods and measures to mitigate effects

• A statement of why they reflect best practicable option

Communications records are contained in the communication and consultation plan (CCP). This SSCNVMP will be updated to summarise engagement and any agreed site-specific measures.

C14 1 Wynyard Road SSCNMP

C14.1 Introduction

This Site Specific Construction Noise Management Plan (SSCNMP) is for the residential building located at 1 Wynyard Road. A SSCNVMP is required because construction is predicted to exceed the noise standards in CRL designation condition 31.

This SSCNVMP has been prepared in accordance with CRL designation condition 37 and is Appendix C14 of the Mt Eden Enabling Works Construction Noise and Vibration Delivery Work Plan (CNV DWP). It is a supplementary document that builds on the CNV DWP, and therefore directly references relevant sections of the CNV DWP to avoid repetition. The objective of this SSCNVMP is to detail the best practicable option(s) to avoid, remedy or mitigate the identified adverse effects from noise exceedances at 1 Wynyard Road.

This SSCNMP has been prepared for the Link Alliance and forms part of the Construction Environmental Management Plan (CEMP) for the Mt Eden Station Enabling Works.

C14.2 Engagement

In the absence of contact details, Link Alliance representatives Duncan Whyte, Hilary Konigkramer and Richard Deane knocked on the door on 10 September 2019. Unfortunately, there was no answer. A general information pack with contact details was left. No response has been received to date to undertake further consultation.

Figure B.5 in Appendix B of the CNV DWP shows that the south façade is predicted to be exposed to noise levels between 75 – 80 dB LAeq during the closest rock breaking activities, exceeding the 75 dB LAeq noise limit. Activity specific mitigation and management measures are included in Section 7 of the CNV DWP and not repeated here (e.g. Section 7.7 concrete and rock breaking).

The residential building has a weatherboards façade with openable windows pitched steel roof. The estimated sound level difference across the façade with the doors closed is 25 decibels. The predicted construction noise effects from Table 10.1 in Section 10.1 are predicted to be typically acceptable, but with the potential for some disturbance for nearby rock breaking.

Consultation engagement has not been successful to date. Prior communication of timeframes for works with the potential to exceed the relevant noise limits will be provided where practicable (Section 8).

C14.3 Review Process

If the property representatives request consultation in the future, this SSCNMP will be updated in accordance with, CRL designation condition 37.5, with consideration given to the following:

• The extent to which noise may exceed the designation standards

• The timing and duration of any exceedance

• The type of activity causing any exceedance

• A summary of the communication and consultation with the receiver

• The methods and measures to mitigate effects

• A statement of why they reflect best practicable option

Communications records are contained in the communication and consultation plan (CCP). This SSCNMP will be updated to summarise engagement and any agreed site-specific measures.

C15 2 Wynyard Road SSCNMP

C15.1 Introduction

This Site Specific Construction Noise Management Plan (SSCNMP) is for the residential building located at 2 Wynyard Road. A SSCNMP is required because construction is predicted to exceed the noise standards in CRL designation condition 31.

This SSCNMP has been prepared in accordance with CRL designation condition 37 and is Appendix C15 of the Mt Eden Enabling Works Construction Noise and Vibration Delivery Work Plan (CNV DWP). It is a supplementary document that builds on the CNV DWP, and therefore directly references relevant sections of the CNV DWP to avoid repetition. The objective of this SSCNMP is to detail the best practicable option(s) to avoid, remedy or mitigate the identified adverse effects from noise exceedances at 2 Wynyard Road.

This SSCNMP has been prepared for the Link Alliance and forms part of the Construction Environmental Management Plan (CEMP) for the Mt Eden Enabling Works.

C15.2 Engagement

In the absence of contact details, Link Alliance representatives Duncan Whyte, Hilary Konigkramer and Richard Deane knocked on the door on 10 September 2019. Unfortunately, the tenants were moving out. A general information pack with contact details was left. No response has been received to date to undertake further consultation.

Figure B.5 in Appendix B of the CNV DWP shows that the south façade is predicted to be exposed to noise levels between 75 – 80 dB LAeq during the closest rock breaking activities, exceeding the 75 dB LAeq noise limit. Activity specific mitigation and management measures are included in Section 7 of the CNV DWP and not repeated here (e.g. Section 7.7 concrete and rock breaking).

The residential building has a brick façade with wooden framed openable windows and pitched concrete tile roof. The estimated sound level difference across the façade with the doors closed is 25 decibels. The predicted construction noise effects from Table 10.1 in Section 10.1 are predicted to be typically acceptable, but with the potential for some disturbance for nearby rock breaking.

Consultation engagement has not been successful to date. Prior communication of timeframes for works with the potential to exceed the relevant noise limits will be provided where practicable (Section 8).

C15.3 Review Process

If the property representatives request consultation in the future, this SSCNMP will be updated in accordance with CRL designation condition 37.5, with consideration given to the following:

• The extent to which noise may exceed the designation standards

• The timing and duration of any exceedance

• The type of activity causing any exceedance

• A summary of the communication and consultation with the receiver

• The methods and measures to mitigate effects

• A statement of why they reflect best practicable option

Communications records are contained in the communication and consultation plan (CCP). This SSCNMP will be updated to summarise engagement and any agreed site-specific measures.

C16 3 Fenton Street SSCNVMP

C16.1 Introduction

This Site Specific Construction Noise and Vibration Management Plan (SSCNVMP) is for the commercial building located at 3 Fenton Street. A SSCNVMP is required because construction is predicted to exceed the standards in CRL designation conditions 31 and 33.

This SSCNVMP has been prepared in accordance with CRL designation condition 37 and is Appendix C16 of the Mt Eden Enabling Works Construction Noise and Vibration Delivery Work Plan (CNV DWP). It is a supplementary document that builds on the CNV DWP, and therefore directly references relevant sections of the CNV DWP to avoid repetition. The objective of this SSCNVMP is to detail the best practicable option(s) to avoid, remedy or mitigate the identified adverse effects from noise and vibration exceedances at 3 Fenton Street.

This SSCNVMP has been prepared for the Link Alliance and forms part of the Construction Environmental Management Plan (CEMP) for the CNV DWP.

C16.2

Engagement

Link Alliance representatives Duncan Whyte, Hilary Konigkramer and Richard Deane met with Alex Ross (Dawsons) on 10 September 2019. The matters discussed included:

• An overview of the project

• General programme of works, rock breaking activities

• Overview of the CNV DWP and this SSCNVMP, communications triggers and protocol

• Building layout and identification of any noise sensitive spaces/activities

Dawson’s offices occupy the first and second level of the building, facing north over the works. The ground level was unoccupied during the visit

Rock breaking activities are required in close proximity to this building for short periods.

Figures B 7 and B.8 in Appendix B of the CNV DWP predict rock breaking noise levels of up to 80 – 90 dB LAeq on the west façade. While this significantly exceeds the 75 dB LAeq noise limit, levels will reduce rapidly as works migrate away. Other utilities works will generally be compliant. Activity specific mitigation and management measures are included in Section 7 of the CNV DWP and not repeated here (e.g. Section 7.7 concrete and rock breaking).

The building is a mixture of lightweight and masonry façade, operable glazing and a shallow pitched steel roof. The estimated sound level difference across the façade with the doors and windows closed is 25 – 30 decibels. The predicted construction noise effects from Table 10.1 in Section 10.1 are predicted to result in short-term noise disturbance.

Alex Ross raised concerns over levels of vibration resulting in damage in the company’s glassware and crockery. Preliminary large excavator mounted rock breaker vibration level predictions (Section 6.2) identify that there is potential to exceed the commercial cosmetic building damage thresholds and will be clearly perceptible. Cosmetic building damage effects are deemed ‘minor damage’ in the DIN Standard (Section 5.2), such as cracking in paint or plasterwork, and can generally be easily repaired. A pre-construction building condition survey in accordance with condition 46 will ensure any damage is identified for remediation.

Alex Ross agreed that prior communication of timeframes for works with the potential to exceed the relevant noise limits was an acceptable means of managing effects. No further activity specific consultation is necessary over and above regular communication (Section 8)

C16.3 Review Process

If Alex Ross request consultation in the future, this SSCNVMP will be updated in accordance with CRL designation conditions 37.5 and 38.5, with consideration given to the following:

• The extent to which noise may exceed the designation standards

• The timing and duration of any exceedance

• The type of activity causing any exceedance

• A summary of the communication and consultation with the receiver

• The methods and measures to mitigate effects

• A statement of why they reflect best practicable option

Communications records are contained in the communication and consultation plan (CCP). This SSCNVMP will be updated to summarise engagement and any agreed site-specific measures

C17 5a Fenton Street SSCNVMP

C17.1 Introduction

This Site Specific Construction Noise and Vibration Management Plan (SSCNVMP) is for the commercial building located at 5a Fenton Street. A SSCNVMP is required because construction is predicted to exceed the Project Standards in CRL designation conditions 31 and 33.

This SSCNVMP has been prepared in accordance with CRL designation condition 37 and is Appendix C17 of the Mt Eden Enabling Works Construction Noise and Vibration Delivery Work Plan (CNV DWP). It is a supplementary document that builds on the CNV DWP, and therefore directly references relevant sections of the CNV DWP to avoid repetition. The objective of this SSCNVMP is to detail the best practicable option(s) to avoid, remedy or mitigate the identified adverse effects from noise and vibration exceedances at 5a Fenton Street.

This SSCNVMP has been prepared for the Link Alliance and forms part of the Construction Environmental Management Plan (CEMP) for the Mt Eden Enabling Works.

C17.2 Engagement

Link Alliance representatives Duncan Whyte, Hilary Konigkramer and Richard Deane met with Danny Bracks (Office Relocations) on 10 September 2019. The matters discussed included:

• An overview of the project

• General programme of works, rock breaking activities

• Overview of the CNV DWP and this SSCNVMP, communications triggers and protocol

• Building layout and identification of any noise sensitive spaces/activities

Office Relocations offices occupy the ground level of the building, facing north to the works. Rock breaking activities are required in close proximity to this building for short periods.

Figures B 7 and B.8 in Appendix B of the CNV DWP predict rock breaking noise levels of up to 80 – 90 dB LAeq on the west façade. While this significantly exceeds the 75 dB LAeq noise limit, levels will reduce rapidly as works migrate away. Other utilities works will generally be compliant. Activity specific mitigation and management measures are included in Section 7 of the CNV DWP and not repeated here (e.g. Section 7.7 concrete and rock breaking).

The building is a masonry façade, openable windows and a shallow pitched steel roof. The estimated sound level difference across the façade with the doors closed is 25 – 30 decibels. The predicted construction noise effects from Table 10.1 in Section 10.1 are predicted to result in short-term noise disturbance.

Danny Bracks raised concerns over levels of vibration resulting in damage in the companies glassware and crockery. Preliminary large excavator mounted rock breaker vibration level predictions (Section 6.2) identify that there is potential to exceed the commercial cosmetic building damage thresholds and will be clearly perceptible. Cosmetic building damage effects are deemed ‘minor damage’ in the DIN Standard (Section 5.2), such as cracking in paint or plasterwork, and can generally be easily repaired. A pre-construction building condition survey in accordance with condition 46 will ensure any damage is identified for remediation.

Danny Bracks agreed that prior communication of timeframes for works with the potential to exceed the relevant noise limits was an acceptable means of managing effects. No further activity specific consultation is necessary over and above regular communication (Section 8)

C17.3 Review Process

If Danny Bracks request consultation in the future, this SSCNVMP will be updated in accordance with CRL designation conditions 37.5 and 38.5, with consideration given to the following:

• The extent to which noise may exceed the designation standards

• The timing and duration of any exceedance

• The type of activity causing any exceedance

• A summary of the communication and consultation with the receiver

• The methods and measures to mitigate effects

• A statement of why they reflect best practicable option

Communications records are contained in the communication and consultation plan (CCP). This SSCNVMP will be updated to summarise engagement and any agreed site-specific measures.

C18 5 Fenton Street SSCNVMP

C18.1

Introduction

This Site Specific Construction Noise and Vibration Management Plan (SSCNVMP) is for the commercial building located at 5 Fenton Street. A SSCNVMP is required because construction is predicted to exceed the standards in CRL designation conditions 31 and 32.

This SSCNVMP has been prepared in accordance with CRL designation condition 37 and is Appendix C18 of the Mt Eden Enabling Works Construction Noise and Vibration Delivery Work Plan (CNV DWP). It is a supplementary document that builds on the CNV DWP, and therefore directly references relevant sections of the CNV DWP to avoid repetition. The objective of this SSCNVMP is to detail the best practicable option(s) to avoid, remedy or mitigate the identified adverse effects from noise and vibration exceedances at 5 Fenton Street.

This SSCNVMP has been prepared for the Link Alliance and forms part of the Construction Environmental Management Plan (CEMP) for the Mt Eden Enabling Works.

C18.2

Engagement

In the absence of contact details, Link Alliance representatives Duncan Whyte, Hilary Konigkramer and Richard Deane knocked on the door on 10 September 2019. Unfortunately, the appropriate representative of Fraser Powerie Barristers and Solicitors was not available A general information pack with contact details was left. No response has been received to date to undertake further consultation.

Rock breaking activities are required in close proximity to this building for short periods.

Figures B 7 and B.8 in Appendix B of the CNV DWP predict rock breaking noise levels of up to 80 – 90 dB LAeq on the west façade. While this significantly exceeds the 75 dB LAeq noise limit, levels will reduce rapidly as works migrate away. Other utilities works will generally be compliant. Activity specific mitigation and management measures are included in Section 7 of the CNV DWP and not repeated here (e.g. Section 7.7 concrete and rock breaking).

The concrete building has operable glazing and a shallow pitched steel roof. The estimated sound level difference across the façade with the windows and doors closed is 25 – 30 decibels. The predicted construction noise effects from Table 10.1 in Section 10.1 are predicted to result in short-term noise disturbance.

Preliminary large excavator mounted rock breaker vibration level predictions (Section 6.2) identify that there is potential to exceed the commercial cosmetic building damage thresholds. Cosmetic building damage effects are deemed ‘minor damage’ in the DIN Standard (Section 5.2), such as cracking in paint or plasterwork, and can generally be easily repaired. A pre-construction building condition survey in accordance with condition 46 will ensure any damage is identified for remediation.

Consultation engagement has not been successful to date. Prior communication of timeframes for works with the potential to exceed the relevant noise limits will be provided where practicable (Section 8).

C18.3 Review Process

If the property representatives request consultation in the future, this SSCNVMP will be updated in accordance with CRL designation conditions 37.5 and 38.5, with consideration given to the following:

• The extent to which noise may exceed the designation standards

• The timing and duration of any exceedance

• The type of activity causing any exceedance

• A summary of the communication and consultation with the receiver

• The methods and measures to mitigate effects

• A statement of why they reflect best practicable option

Communications records are contained in the communication and consultation plan (CCP). This SSCNVMP will be updated to summarise engagement and any agreed site-specific measures.

C19 11 Fenton Street SSCNVMP

C19.1 Introduction

This Site Specific Construction Noise and Vibration Management Plan (SSCNVMP) is for the residential building located at 11 Fenton Street. A SSCNVMP is required because construction is predicted to exceed the standards in CRL designation conditions 31 and 32.

This SSCNVMP has been prepared in accordance with CRL designation condition 37 and is Appendix C19 of the Mt Eden Enabling Works Construction Noise and Vibration Delivery Work Plan (CNV DWP). It is a supplementary document that builds on the CNV DWP, and therefore directly references relevant sections of the CNV DWP to avoid repetition. The objective of this SSCNVMP is to detail the best practicable option(s) to avoid, remedy or mitigate the identified adverse effects from noise and vibration exceedances at 11 Fenton Street.

This SSCNVMP has been prepared for the Link Alliance and forms part of the Construction Environmental Management Plan (CEMP) for the Mt Eden Enabling Works.

C19.2 Engagement

Link Alliance representatives Sonya Leahy, Hilary Konigkramer, Aidan Kirkby-McLeod, Phil Young and Craig Fitzgerald met with building representative Tim Harding (body corporate chair of Station R Apartments) on 18 September 2019. The matters discussed included:

• An overview of the project

• General programme, demolition, rock breaking and utilities relocation activities

• Overview of the CNV DWP and this SSCNVMP, communications triggers and protocol and for monitoring and pre-construction building condition surveys

The modern multi-level terraced apartment building features basement car parking beneath 36 apartments with balconies on the north side overlooking the rail corridor and worksite. There are approximately 2-3 families with young children.

Rock breaking activities are required in close proximity to this building for short periods.

Figures B 7 and B.8 in Appendix B of the CNV DWP predict rock breaking noise levels of 80 –90 dB LAeq on the west façade. While this significantly exceeds the 75 dB LAeq noise limit, levels will reduce rapidly as works migrate away. Other utilities works will generally be compliant. Activity specific mitigation and management measures are included in Section 7 of the CNV DWP and not repeated here (e.g. Section 7.7 concrete and rock breaking).

The modern concrete building has well sealed openable glazing. The estimated sound level difference across the façade with the windows and doors closed is 30 decibels. The predicted construction noise effects from Table 10.1 in Section 10.1 are predicted to result in shortterm noise disturbance

Preliminary excavator mounted rock breaker vibration level predictions (Section 6.2) identify that there is potential to exceed the commercial cosmetic building damage thresholds

Cosmetic building damage effects are deemed ‘minor damage’ in the DIN Standard (Section 5.2), such as cracking in paint or plasterwork, and can generally be easily repaired. A pre construction building condition survey in accordance with condition 46 will ensure any damage is identified for remediation.

Mr Harding agreed that prior communication of timeframes for works with the potential to exceed the relevant noise limits was an acceptable means of managing effects. No further activity specific consultation is necessary over and above regular communication (Section 8).

C19.3 Review Process

If Mr Harding or affected site representatives request consultation in the future, this SSCNVMP will be updated in accordance with CRL designation conditions 37.5 and 38.5, with consideration given to the following:

• The extent to which noise may exceed the designation standards

• The timing and duration of any exceedance

• The type of activity causing any exceedance

• A summary of the communication and consultation with the receiver

• The methods and measures to mitigate effects

• A statement of why they reflect best practicable option

Communications records are contained in the communication and consultation plan (CCP). This SSCNVMP will be updated to summarise engagement and any agreed site-specific measures.

C20 2 Haultain Street SSCNMP

C20.1 Introduction

This Site Specific Construction Noise Management Plan (SSCNMP) is for the commercial building located at 2 Haultain Street. A SSCNMP is required because construction is predicted to exceed the noise standards in CRL designation condition 31.

This SSCNMP has been prepared in accordance with CRL designation condition 37 and is Appendix C20 of the Mt Eden Enabling Works Construction Noise and Vibration Delivery Work Plan (CNV DWP). It is a supplementary document that builds on the CNV DWP, and therefore directly references relevant sections of the CNV DWP to avoid repetition. The objective of this SSCNMP is to detail the best practicable option(s) to avoid, remedy or mitigate the identified adverse effects from noise exceedances at 2 Haultain Street.

This SSCNMP has been prepared for the Link Alliance and forms part of the Construction Environmental Management Plan (CEMP) for the Mt Eden Enabling Works.

C20.2 Engagement

Link Alliance representatives Duncan Whyte, Hilary Konigkramer and Richard Deane knocked on the door on 10 September 2019.

Unfortunately, the appropriate representative of Bootleg Design (unit 1) was not available. A general information pack with contact details was left. No response has been received to date to undertake further consultation.

Craig and Susanne Meldrum of WiPath (unit 2) offices occupy the ground and first level of the building, facing north over the works

Figure B.8 in Appendix B of the CNV DWP shows that the north façade is predicted to be exposed to noise levels between 75 – 80 dB LAeq during the closest rock breaking activities, exceeding the 75 dB LAeq noise limit. Activity specific mitigation and management measures are included in Section 7 of the CNV DWP and not repeated here (e.g. Section 7.7 concrete and rock breaking).

The building is a lightweight façade, glazing and a flat steel roof. The estimated sound level difference across the façade with the doors closed is 20 – 25 decibels. The predicted construction noise effects from Table 10.1 in Section 10.1 are predicted to be typically acceptable, but with the potential for some disturbance for nearby rock breaking.

Mr and Ms Meldrum agreed that prior communication of timeframes for works with the potential to exceed the relevant noise limits was an acceptable means of managing effects. No further activity specific consultation is necessary over and above regular communication (Section 8).

C20.3 Review Process

If Mr or Ms Meldrum or other property representatives request consultation in the future, this SSCNMP will be updated in accordance with CRL designation condition 37.5, with consideration given to the following:

• The extent to which noise may exceed the designation noise standards

• The timing and duration of any exceedance

• The type of activity causing any exceedance

• A summary of the communication and consultation with the receiver

• The methods and measures to mitigate noise effects

• A statement of why they reflect best practicable option

Communications records are contained in the communication and consultation plan (CCP). This SSCNMP will be updated to summarise engagement and any agreed site-specific measures.

C21 Bear Park 32 Akiraho Street SSCNMP

C21.1 Introduction

This Site Specific Construction Noise Management Plan (SSCNMP) is for the Bear Park childcare centre located at 32 Akiraho Street. A SSCNMP is not required for the Mt Eden enabling works because construction is predicted to comply with the noise standards in CRL designation condition 31. Nonetheless, this precautionary SSCNMP sets up the process to address specific conditions and ensure good effective communication with Bear Park in advance of any potential exceedances from future stages of works.

This SSCNMP has been prepared in accordance with CRL designation condition 37 and is Appendix C21 of the Mt Eden Enabling Works Construction Noise and Vibration Delivery Work Plan (CNV DWP). It is a supplementary document that builds on the CNV DWP, and therefore directly references relevant sections of the CNV DWP to avoid repetition. The objective of this SSCNMP is to detail the best practicable option(s) to avoid, remedy or mitigate the identified adverse effects from noise exceedances at 32 Akiraho Street

This SSCNMP has been prepared for the Link Alliance and forms part of the Construction Environmental Management Plan (CEMP) for the Mt Eden Enabling Works.

C21.2 Building Details

Link Alliance representatives Sonya Leahy, Thibaut L'Hopital, Aidan Kirkby-McLeod, Simon Titter and Craig Fitzgerald met with Paloma Poliko (Centre Manager) on 14 October 2019. The matters discussed included:

• An overview of the project

• General project programme, demolition and rock breaking/blasting activities

• Overview of the CNV DWP and this SSCNMP, communications triggers and protocol

Bear Park caters for nearly 100 families. The site buildings and outdoor play areas are screened from the NAL and site works by the new Station R apartments. Sleep times for junior children are between 12 noon and 2pm.

Figure B.8 in Appendix B of the CNV DWP shows that the north façade is predicted to be exposed to noise levels between 60 – 65 dB LAeq during the closest rock breaking activities, complying with the 65 dB LAeq noise limit in condition 31.1 Activity specific mitigation and management measures are included in Section 7 of the CNV DWP and not repeated here (e.g. Section 7.7 concrete and rock breaking).

The modern brick building has sealed glazing and a pitched fibre cement roof. The estimated sound level difference across the façade with the doors closed is 30 decibels. The predicted construction noise effects from Table 10.1 in Section 10.1 are predicted to be typically acceptable and the noise level inside comply with 35 dB LAeq in condition 31.1 with the windows and doors closed and air conditioning on.

Ms Poliko agreed that prior communication of timeframes for works with the potential to exceed the relevant noise limits was an acceptable means of managing effects. No further activity specific consultation is necessary over and above regular communication (Section 8)

C21.3 Review Process

If Ms Poliko or other Bear Park representatives request consultation in the future, this SSCNVMP will be updated in accordance with CRL designation condition 37.5, with consideration given to the following:

• The extent to which noise may exceed the designation noise standards

• The timing and duration of any exceedance

• The type of activity causing any exceedance

• A summary of the communication and consultation with the receiver

• The methods and measures to mitigate noise effects

• A statement of why they reflect best practicable option

Communications records are contained in the communication and consultation plan (CCP). This SSCNVMP will be updated to summarise engagement and any agreed site-specific measures.

C23 140 New North Road SSCNMP

C23.1

Introduction

This Site Specific Construction Noise Management Plan (SSCNMP) is for the residential building located at 140 New North Road. A SSCNMP is required because construction is predicted to exceed the noise standards in CRL designation condition 31.

This SSCNMP has been prepared in accordance with CRL designation condition 37 and is Appendix C23 of the Mt Eden Enabling Works Construction Noise and Vibration Delivery Work Plan (CNV DWP). It is a supplementary document that builds on the CNV DWP, and therefore directly references relevant sections of the CNV DWP to avoid repetition. The objective of this SSCNMP is to detail the best practicable option(s) to avoid, remedy or mitigate the identified adverse effects from noise exceedances at 140 New North Road.

This SSCNMP has been prepared for the Link Alliance and forms part of the Construction Environmental Management Plan (CEMP) for the Mt Eden Enabling Works.

C2.23

Engagement

Link Alliance representatives Duncan Whyte, Hilary Konigkramer and Richard Deane met with Ash Woods on 10 September 2019. The matters discussed included:

• An overview of the project

• General project programme, demolition and rock breaking/blasting activities

• Overview of the CNV DWP and this SSCNMP, communications triggers and protocol

• Building layout and identification of any noise sensitive spaces

The ground floor of the building contains apartments, with a boarding house and additional apartments on the first floor.

Figure B.8 in Appendix B of the CNV DWP shows that the west façade is predicted to be exposed to noise levels between 75 – 80 dB LAeq during the closest rock breaking activities, exceeding the 75 dB LAeq noise limit. Activity specific mitigation and management measures are included in Section 7 of the CNV DWP and not repeated here (e.g. Section 7.7 concrete and rock breaking).

The building is a masonry façade, glazing and a flat steel roof. The estimated sound level difference across the façade with the doors closed is 25 – 30 decibels. The predicted construction noise effects from Table 10.1 in Section 10.1 are predicted to be typically acceptable, but with the potential for some disturbance for nearby rock breaking.

If Mr Woods agreed that prior communication of timeframes for works with the potential to exceed the relevant noise limits was an acceptable means of managing effects. No further activity specific consultation is necessary over and above regular communication (Section 8).

C23.3 Review Process

If Mr Woods or affected site representatives request consultation in the future, this SSCNMP will be updated in accordance with CRL designation condition 37.5, with consideration given to the following:

• The extent to which noise may exceed the designation noise standards

• The timing and duration of any exceedance

• The type of activity causing any exceedance

• A summary of the communication and consultation with the receiver

• The methods and measures to mitigate noise effects

• A statement of why they reflect best practicable option

Communications records are contained in the communication and consultation plan (CCP). This SSCNMP will be updated to summarise engagement and any agreed site-specific measures.

Appendix D: Record of CLG, IPR and Auckland Council Comments

Communications records are contained in the communication and consultation plan (CCP).

CLG comments on this DWP are contained in Table D-1, the Independent peer review comments are included in Table D-2, and comments from Auckland Council are included in Table D-3.

D.1 CLG Comments

A Mt Eden CLG meeting was held on 8th October to discuss the Mt Eden Enabling Works and for the CLG to provide comments / feedback on the CEMP and sub-plans, including this CNV DWP.

11/12/2018 Danny Wells (3 Akiraho St)

Richard Coombes (3 Akiraho St)

Joslyn Skiffington (Bear Park –32 Akiraho St)

General

Danny Wells Asked if works would be 24/7

Richard Coombes (3 Akiraho St)

Asked that buildings be demolished from north to south to provide acoustic screening to receivers south of the railway line during the early stages.

Bear Park Asked about noise and vibration effects on their operations.

Provided an overview of the CNV DWP. A summary of the demolition methodology was provided, along with a more detailed discussion about foundations concrete cutting and breaking activities because they are predicted to be the loudest activities and breaking can generate appreciable vibration locally. The figures in Appendix B were used to predict the noise levels received at each of the CLG members properties. SSCNVMPs were discussed, but are not needed for their properties due to the predicted noise levels.

Section 5.2 sets out that the normal hours of work are during the daytime, Monday to Saturday.

Buildings would provide interim screening until removed. However, the order of demolition is not known at this time. Nonetheless, local noise barriers would be used to supplement acoustic screening in accordance with Section 5.5 where appropriate.

Bear Park buildings are screened from the works by other buildings fronting the railway line. The playground is also screened from the works, with a narrow view to the corner of the western most site. Construction activities will be audible, but are predicted to comply with the noise and vibration limits without the need for an SSCNVMP. Loudest activity would continue to be trains passing. No material effects on their operations predicted.

Richard Coombes (3 Akiraho St)

Asked about potential noise and vibration effects at his ground floor occupancy approximately 30 – 40m away.

Concrete breaking is predicted to readily comply with building damage thresholds, could be perceptible at times, but unlikely. Also noted that noise barrier screening is more effective for ground floor receivers.

Danny Wells Asked about monitoring. Advised that monitoring is undertaken to verify CNVMP implementation and measure levels, including the first occurrence of concrete breaking and cutting.

Overall, no changes to the CNVMP requested or deemed necessary.

Mt Eden Enabling works

8/10/2019 Question from the floor

Megan (10 Ruru St)

Would rail noise in the future trench would be quieter than current at grade movements.

Demolition noise from South Pacific Timber yard. Throwing around sheets of steel around in the middle of the night.

While that is part of the future C5 works, in general trench walls would mitigate low level receivers, but have less of a benefit for elevated receivers, such as the upper floor levels of the Station R apartments.

Thibaut addressed complaint and dealt with South Pacific Timber, but they are not controlled by C3 Mt Eden demolition works. Mt Eden demolition works will be undertaken during the day. There may be specific tasks that must be undertaken at night when the trains are not running for safety reasons, but none are identified for C3 Mt Eden demolition works as yet.

Lynn (10 Ruru St) Asked about hours of operations (C6 occasionally started at 6.30am, timing over Christmas). Lynn also asked why we assess road side when the C6 noise levels seemed louder in the central courtyard than in her house.

Provided standard daytime hours of 7am7pm, extending to 10pm if required. Encouraged Lynn to raise a concern with the C3 team if noisy works start before 7am. Aidan to provide Christmas hours. Advised Lynn that we had engaged with body corporate to prepare SSCNVMP, pre condition survey and advanced comms. I explained that the noise levels are assessed at the external façade fronting the site, rather than in her house or courtyard, and that this was a conservative proxy position.

Nick (10 Ruru St) Generally interested in blasting

Rosco (Station R apartments)

Asked about the need for a pre construction building condition survey.

We discussed C6 blasting and the precondition and comms process / effects experienced (happy). I advised that the blasting would be further away, but similar in process and effect, but for a larger number of events over many weeks.

Advise that one will be offered due to the proximity of breaking and future works in the rail corridor. Aslam confirmed the

Richard Coombes (3 Akiraho St)

Asked a team member if loading of spoil stockpiled from the bulk excavation onto trucks be noisy as it relates to his property –particularly in terms of concrete / rock / basalt –and what mitigation measures could be in place to reduce noise from this.

condition survey would be undertaken prior to works commencing.

This was not answered on the night, but in response, concrete crushing activities and loading will be audible at times, but are predicted to readily comply at 3 Akiraho St due to distance and proposed screening. The crushed aggregate is also small in size, so loading of that material is not particularly noisy.

D.2 Independent peer review Comments

Table D-2: Independent peer review comments

Section Condition Comment Response

Mt Eden demolition CNV DWP review, dated 22 Jan 2019

2.4 Circumstances under which ‘normal’ hours might be exceeded should be stated, along with any corresponding management procedures.

Updated section

2.4 Highlighted details to be confirmed. To be confirmed once the contractor is appointed

2.5 Clear reference labels for each receiver should be added to Figure 3.

2.5 The commercial and industrial receivers are expected to have a wide range of sensitivity. A table with the nature of each receiver should be added.

2.6 The statement that the CNV DWP has been prepared by Craig Fitzgerald is inconsistent with the report author named on the front cover.

Updated to identify the relevant receivers based on the noise modelling in Appendix B and SSCNVMPs

No change. The relevant receivers have now been identified based on the change above. This level of detail is not required for other receivers where compliance is predicted

Updated

2.6 Highlighted details to be added in Table 1. To be confirmed once the contractor is appointed

3.1.2 The list of matters to be addressed by a SSCNMP should be amended to include all items listed in condition 37.4

It is not considered necessary to include the full Condition in this section. This section serves as a summary and refers to Condition 37 for what the SSCNVMP should cover. However, a cross reference

3.2.3

The list of matters to be addressed by a SSCVMP should be amended to include all items listed in condition 38.5

4.1

Reference is made to effective noise barriers. It should be clarified that these generally do not provide 10 dB when receivers overlook the demolition site, as demonstrated by the acoustics modelling.

5.2 As above, either “normal construction hours” should be changed to “construction hours” or exemptions and controls for works at other times should be listed.

5.2 It should be specified which parts of the overall site will contain demolition activity that may affect Mediaworks.

5.5

5.6/5.7

Specific details of temporary barriers should be stated rather than options.

“Avoidance” of certain works at night/evening and Sundays/public holidays is listed as a mitigation measure. This is outside the stated construction hours for all works but listing “avoid” implies it may otherwise be acceptable.

to Appendix E which contains the full condition has been added

It is not considered necessary to include the full Condition in this section. This section serves as a summary and refers to Condition 38 for what the SSCNVMP should cover. However, a cross reference to Appendix E which contains the full condition has been added

Updated

Updated section

No change. This is addressed in Appendix B and the Mediaworks SSCNVMP

No change. This will be confirmed by the contractor once appointed.

Changed “Avoid” to “No”

6.0 Highlighted details to be confirmed. To be confirmed once the contractor is appointed

6.1 A process needs to be documented as to who identifies when upcoming activities might exceed noise limits, and advises the Communications Manager accordingly so that communications processes are initiated.

7.2 Text in Figure 5 is missing, such that currently the flow chart cannot be followed.

C1

Specific consultation requirements with Mediaworks in the preparation of the SSCVMP and the process for resolution of any disagreements should be summarised.

C1 The Mediaworks SSCNVMP does not comply with designation conditions 40.2, 40.3, 40.4, 40.5 & 40.8. While some conditions are referenced there are no details of how they will be implemented.

Included a line to show who has would be responsible for identifying potential exceedances.

Updated

Have included topics that should be discussed during the consultation as well as information that needs to be contained in the consultation section of the SSCNVMP

To be complete once the contractor is appointed. Many of these tasks cannot be completed sufficiently in advance. Framework of SSCNVMP provides for these conditions to be satisfied.

C1

C1

Highlighted details to be confirmed.

Table C1.2.2 only includes one of the vibration limits for commercial buildings from condition 33.1. The other limits should be added.

C2/C3

These two draft SSCNVMPs do not contain sufficient details at this stage to allow review with respect to the designation conditions.

To be confirmed once the contractor is appointed

No change. MediaWorks is a commercial building with respect to condition 33.1. The table is a summary of the relevant limits, and therefore, the most conservative of the commercial building damage limits is included. Exceedance of this criterion will trigger review regardless of compliance.

To be confirmed once the contractor is appointed and consultation is undertaken

NOTICE No. B010236 CA-02 - MediaWorks SSCNVMP review for demolition, dated 7 Oct 2019

C1.4 35.4 The condition noise that if the limits are complied with in Studio 1, the noise and vibration levels in all other Studios will be acceptable. This could be more clearly spelt out in this section to avoid unnecessary measurements

C1.2, C1.3 35.2b C1.2 notes Christmas holiday times but C1.3 just addresses typical 7-day week as an update. The specific sensitive times over the Christmas Holiday period should be confirmed to avoid inadvertently restrictive assumptions.

C1.2 35.7 Table C.1.2.2 refers DWP 5.2.1. This is assumed to be 3.2.1 in the original SSCNVMP. Reference may need to be updated.

? 36.3a Lists of actual roles and responsible people are missing from DWP (Table 1 blank) and SSCNVMP

C1.4 36.3c Values appear accurate but figure references are incorrect. Figs 12, 13 relate to Mediaworks, not 11.1, 11.3 and 11.5 as referenced in SSCNVMP.

C1.1 36.3j In relation to mitigation methods referred to in DWP;

• Is it practicable to demolish buildings such that the remaining façade acts as a barrier until it is pulled down? This does not seem to be discussed but would provide useful reductions in noise.

• Also, consider the use of old tyres to act as a mattress when pulling down brick/concrete facades

This is set out in C1.2 Project Standards Table C1.2.2.2. However, now repeated in Section C1.4 for the avoidance of doubt.

Seasonal periods were confirmed by MediaWorks on 18 September. However, they requested the modified time remain confidential. Therefore, are not included in this SSCNVMP.

Correct, 5.2.1 in enabling works DWP.

This list has been populated but is still subject to change

Correct, updated as Figure references B.1, B.3 and B.5 in enabling works DWP.

No. This was raised as a mitigation option early on, but the portal construction is on the critical path, so requires the buildings noted as Stage 1 demolition to be removed first.

This should be considered where a wall needs to be pushed over. However, all buildings are low rise, generally of concrete block construction. Demolition will involve nibbling the walls rather than pushing them over. Note a bed of small rubble will provide some impact

C1.1 36.3k(i) The updated DWP should make the changes made for the final demolition works approach apparent.

C1.1 40.2 • It is understood from verbal discussions that facade TL measurements have already been conducted but the results are not explained clearly in the SSCNVMP or DWP. Assuming these are indeed completed, these should be summarised as it currently unclear how accurate the '30dB reduction' of the facade actually is.

• If the reduction varies due to locations that have not been upgraded this should also be mentioned if relevant.

C1.4 40.4 Table 4 of the DWP is used as the basis for noise predictions but the source of the Lw values is not identified. It is not clear if the measurements required by Condition 40.4 have already been conducted or if they still need to be done. Assuming they are not yet complete (given the difficulty of pre-assigning particular equipment), this step should be highlighted in the SSCNVMP

C1.4 40.8

• This condition requires that the results of the early measurements described in C1.4 (Studio 1 Noise and Vibration) are in the SSCNVMP. Is the intention to immediately update this SSCNVMP to reflect these tests?

• It should be noted that the vibration / reradiated noise is likely to be highly directional given changing ground conditions and should be assessed from a number of directions before settling on a given stand-off distance.

C1.6 40.11(e) Complaints procedure does not appear to be listed in the SSCNVMP.

mitigation. Tyres may also complicate spoil separation.

No change required as there is no material change to demolition method.

Accurate TL is impractical to measure without good signal to noise (i.e. once construction commences. Added "This assumption will be confirmed during attended monitoring of early works."

Added that the performance will be reconfirmed during attended monitoring of early works.

Yes.

Yes.

General - As a general note, the DWP is not displaying page numbers. This should be corrected in the update for ease of use.

Mt Eden CNV DWP review for enabling works, emails dated 4 Nov 2019

3 There can be inconsistencies between some addresses in GIS and other maps

General complaint response procedure is set out in Section 8.2 of the Enabling works DWP. Section C1.6 includes specific measures relevant to this SSCNVMP (e.g. Cease the work giving rise to the exceedance in Studio 1 as soon as safe and practicable).

The enabling works DWP includes page numbers, so is rectified in the DWP that will be implemented.

Standard approach to mapping/addresses to be agreed by CRL

Appendix B

Vibration contours showing the stand-off distances for compliance are desired

Appendix B Plan view contours desired

General Staging plans would be beneficial.

D.3

Auckland Council

6.2

7.3

7.9

10.1

Appendix B

Vibration contours for rock breaking and blasting included in Appendix B

Included in Appendix B

Staging plans intentionally excluded to avoid duplication of the CEMP (which this plan sits underneath).

Appendix B

Table 6.2 on p.29 states that:

The activities in Table 6-2 are predicted to generally comply with the cosmetic damage limits (Section 5.2.1) but may be perceptible at times near the site perimeter

The terminology “generally comply” could infer that the may be non-compliance. Are there any receivers where the cosmetic damage limits are predicted to exceed?

Yes, these are detailed in the subsequent sentence in Section 6.2.

Will mechanical plant be operating at night? Potentially (e.g. fans or pumps that might be required to operate 24/7), but nothing that is predicted to exceed the noise limits in the enabling phase.

Section 7.9 states that:

The blasting contractor will prepare a Blasting Management Plan (BMP) in accordance with AS 2187-2. Will this BMP be reviewed?

In the noise effects category Orange is Appreciable but in the matrix states that orange is Annoyance and reduction in work efficiency. Should the noise effects category and noise matrix be consistent? Please provide more detail of how the noise effect categories will work in practice.

Appendix B has noise level predictions but no commentary. The key refers to “LrD” levels. Is this the Daytime Rating Level? Please provide more detail.

The predicted noise levels in Appendix B do not correlate with the predicted noise levels in the SSCNMP’s. Why are the predicted

Yes.

Removed “acceptable, appreciable and significant” descriptions to avoid potential conflict with descriptions under each Table overleaf. Also, the degree of effect will be determined on a case-bycase basis, as described in Section 10.1.

Reference to LrD removed, figures now show Leq. Commentary is provided in SSCNVMPs. Please find new set of figures attached.

This will be updated when the DWP is reissued following all comments.

Appendix B

levels different in appendix B higher than in the SSCNMP’s?

Appendix B has noise level predictions of 90 dB LAeq +. How much over 90 dB LAeq could this be? Is it more appropriate to have a category 90 – 95 dB L Aeq, then 95 dB LAeq +

We have breaking within a few metres of buildings. Levels above 90 dB LAeq level will be extremely brief and proximate (approximately 5-6 meters from a 20T breaker where not effectively screened, such as the upper storey of a building looking down on the breaking directly adjacent).

Appendix C

Why do none of the SSCNMP’s report levels above 90 dB but the noise mapping shows many facades with the blue colour which is 90 dB + (LrD)?

Appendix C

Appendix C.1

Appendix C.1

The SSCVMP’s are incomplete and do not identify all the matters required by CRL designation condition 38. We can undertake a further review once they are completed – is it known when this will be?

During a meeting on 18 September 2019, MediaWorks confirmed that the Sensitive Times in the CRL designation conditions do not reflect current operations and an update was required. Will any further consultation be made to ensure sensitive times are correct or if they have changed again?

The 0.1mm/s PPV vibration limit primarily controls reradiated noise levels to below the required limits in condition 35.2. The predicted vibration level received in Studio 1 from a large excavator mounted concrete breaker is 0.3mm/s PPV at 60m, which is above the limit specified in CRL designation condition 35.3. We raised whether the 0.3mm/s PPV also control the noise to within the limits in condition 35.2 in a review of the updated MediaWorks SSCNMP and the response was that this will be undertaken outside sensitive times until this can be demonstrated but this is not in this SSCNVMP C1. Please confirm if activities that are predicted to exceed the 0.1mm/s PPV vibration will be undertaken outside sensitive times until the monitoring has been completed.

The predicted noise ranges are representative of the level across the most exposed façade, but the level will vary based on the proximity of the construction activity. Removed reference to levels “up to” since this implies levels would not be greater than, and instead will refer to general levels across the façade.

The framework of all SSCNVMPs are complete. There are a few where engagement is not complete (e.g. unable to contact building owner for pre condition survey), but that is identified and ongoing. The SSCNVMP will then be updated accordingly.

Yes. Section C1.3 captures the updated Sensitive Times that we are working with. If they change, the SSCNVMP will be reviewed.

Yes. For example, concrete breaking works were commenced outside Sensitive Times and monitoring undertaken to inform compliance and effects in Studio 1.

Appendix C21

The introduction states that:

This Site Specific Construction Noise Management Plan (SSCNMP) is for the Bear Park childcare centre located at 32 Akiraho Street. A SSCNMP is not required for the Mt Eden enabling works because construction is predicted to exceed the noise standards in CRL designation condition 31.

Is that correct?

Appendix C21

Appendix C21

The SSCNMP states:

Figure B.8 in Appendix B of the CNV DWP shows that the north façade is predicted to be exposed to noise levels between 60 – 65 dB LAeq during the closest rock breaking activities, complying with the 65 dB LAeq noise limit in condition 31.1.

The requirement for the noise limit to be met in the outdoor play areas, not only at the façade. Please provide predicted noise levels for the outdoor play areas.

The report states that:

Bear Park buildings are screened from the works by other buildings fronting the railway line. The playground is also screened from the works, with a narrow view to the corner of the western most site. Construction activities will be audible, but are predicted to comply with the noise and vibration limits without the need for an SSCNVMP. Loudest activity would continue to be trains passing. No material effects on their operations predicted.

Please provide more detail on the potential non-compliance to the play area.

General Will Auckland Council (monitoring manager) also be notified as well?

No. The second sentence should read: “A SSCNMP is not required for the Mt Eden enabling works because construction is predicted to exceed comply with the noise standards in CRL designation condition 31.”

Note it continues: “Nonetheless, this precautionary SSCNMP sets up the process to address specific conditions and ensure good effective communication with Bear Park in advance of any potential exceedances from future stages of works”.

Breaking noise levels predicted in Bear Park playground are 55 dB LAeq, thereby complying with the limit in Condition 31.1. See attached updated figures. Note that the Station R apartment building now screens the Bear Park site. Furthermore, the playground is encircled by a close boarded timber fence.

Noise level predicted at Bear Park playground of 55 dB LAeq, thereby predicted to comply with the limit in Condition 31.1.

Yes, through the monthly reporting, which includes a summary of any exceedances and complaints response. This is consistent with the process implemented for CRL C1 and C2. In addition, the MediaWorks monitoring alerts will be made available to Council in accordance with condition 40.9.

NOTICE No. B010236 CA-02 - MediaWorks SSCNVMP review for demolition, dated 7 Oct 2019

C1.2 35.2 It is noted that the 0.1mm/s PPV vibration limit primarily controls reradiated noise levels to below the required limits in

Airborne noise – yes. Reradiated noise –likely, but will be undertaken outside Sensitive Times until this can be

C1.4

condition 35.2. The predicted vibration level received in Studio 1 from a large excavator mounted concrete breaker is 0.3mm/s PPV at 60m, which is above the limit specified in CRL designation condition 35.3. Does this level of 0.3mm/s PPV also control the noise to within the limits in condition 35.2?

MDA advise they have measured similar rock breaking works approximately 90m from Studio 1 with no exceedances of the 0.1mm/s PPV limit.. Please provide more details of the vibration monitoring undertaken of similar rock breaking (results, methodology, were the works comparable to these works).

demonstrated. For example, yesterday (outside Sensitive Times) we measured 0.1mm/s PPV in Studio 1 from a controlled demolition event at 21 Shaddock St. The event was inaudible in Studio 1 at 0.1mm/s PPV.

This relates to the C6 breaking on the corner of Nikau and Ruru Streets. The location and methodology is relevant to C3 works. MediaWorks were setup with vibration monitors and automated alerts for any exceedances. Vibration alerts were triggered regularly, but were false positives from activities within Studio 1. MediaWorks did not hear or feel the vibration from rock breaking, and therefore, did not affect their operations. They chose to modify engagement so that they called us if there was an issue. They subsequently advised that the only thing they heard or felt in Studio 1 was the blast event.

C1.4

C1.5

C1.5

C1.6

The plan states that blasting will be timed so as to avoid sensitive times. We recommend that the terminology be more certain, such as that “blasting will not be done during sensitive times” rather than avoid?

With regard to the alert response protocol, the plan states that a separate document will detail the people who are setup to receive the text and/or email alerts. We appreciate that the document could hold sensitive information but could more details be provided such as how many people can be on the list? The plan states “the data shall be available in real time to City Rail Link Limited, Link Alliance, Auckland Council and MediaWorks.” How will the data be available – what platform will be used, how many will be able to access the data? is there a contingency if the system goes off line?

The plan states that “data is accessed remotely via the 3G network. If a preset monitoring trigger level is exceeded, it will alert the monitoring manager.” Has the monitoring manager been appointed and trained? Will he or she always be available –or is the backup monitoring managers?

The details in Table C1.6.1 (details activities that are predicted to exceed the Studio 1 limits) have not been completed in the

Agreed, unless otherwise agreed by MediaWorks.

Sixense hosted data / platform. Contingency is attended monitoring.

Jenny Zhang current monitoring manager Currently undergoing training System is still teething. Matt Goldring is also getting the alerts and will be her back up.

Provided the works with the potential to exceed in Studio 1 are timed outside Sensitive Times, they won’t be used. They will only be used if activities must

document version sent for review. Will these be completed and sent for review? be time during Sensitive Times and will exceed in Studio 1. An example might be the TBM. However, it is too early to address this activity with any certainty.

A number of the independent peer reviewers questions have been responded to by MDA with “To be complete once the contractor is appointed”. When will this be done and will the questions raised be addressed at that stage?

Those comments come from the first round of peer review comments dated 22 Jan 2019 (i.e. before Link Alliance appointment). None in the subsequent IPR review round dated 7 Oct 2019.

Appendix E: Glossary of Terminology

Noise

Ambient Noise

Ambient Noise is the all-encompassing noise associated with any given environment and is usually a composite of sounds from many sources near and far.

A-weighting A frequency filter which is applied to a measurement of sound so as to more closely approximate the frequency bias of the human ear.

dB Decibel – the basic measurement unit of sound It is a logarithmic ratio of measured sound pressure level with respect to a reference level of 20 micropascals.

LAeq(T) The A-weighted, time averaged sound level (on a logarithmic/energy basis) over the measurement period T (e.g between 10 and 60 minutes).

LAFmax The maximum A-weighted sound level recorded during the measurement period. Measured with fast time weighting i.e. a 125 millisecond time constant

Noise A sound that is unwanted by, or distracting to, the receiver.

NZS 6801:2008 New Zealand Standard NZS 6801:2008 "Acoustics - Measurement of Sound"

NZS 6802:2008 New Zealand Standard NZS 6802:2008 "Acoustics - Environmental Noise”.

NZS 6803:1999 New Zealand Standard NZS 6803:1999 “Acoustics – Construction Noise”.

Vibration

PPV Peak Particle Velocity, measured in mm/s This is the standard metric for assessing construction vibration levels. DIN 4150-3:1999 German Standard DIN 4150-3:1999 “Structural Vibration – Part 3: Effects of vibration on structures” This standard is adopted to assess building damage.

General

Suitably qualified and experienced acoustic specialist A person who has sufficient qualifications and experience in the relevant field(s) of acoustics (noise and/or vibration) to undertake robust measurements and assessments i.e a Member of the Acoustical Society of New Zealand.

Other Abbreviations

City Rail Link CLG Community Liaison Group BPO Best Practicable Option

CNV Construction Noise and Vibration

DWP Delivery Work Plan

SSCNMP Site Specific Construction Noise Management Plan

SSCVMP Site Specific Construction Vibration Management Plan