Construction Noise and Vibration Delivery Work Plan

City Rail Link In association with:

ENABLING WORKS – CONTRACT C3 Construction Noise and Vibration Delivery Work Plan

Document Ref: CRL-KRD-RME-000-RPT-0137 Revision: 03 15 April 2019

INTERNAL WORKING DOCUMENT COMMERCIAL IN CONFIDENCE

84 Symonds Street PO Box 5811 Wellesley Street Auckland 1141 New Zealand T: +64 9 379 7822 F: +64 9 309 3540 www.marshallday.com

Project:

K Road Demolition

Prepared for:

City Rail Link Limited PO Box 105777 Auckland 1143

Attention:

Helen Mclean

Report No.:

Rp 001 20181172

Disclaimer Reports produced by Marshall Day Acoustics Limited are based on a specific scope, conditions and limitations, as agreed between Marshall Day Acoustics and the Client. Information and/or report(s) prepared by Marshall Day Acoustics may not be suitable for uses other than the specific project. No parties other than the Client should use any information and/or report(s) without first conferring with Marshall Day Acoustics.

The advice given herein is for acoustic purposes only. Relevant authorities and experts should be consulted with regard to compliance with regulations or requirements governing areas other than acoustics.

Copyright The concepts and information contained in this document are the property of Marshall Day Acoustics Limited.

Use or copying of this document in whole or in part without the written permission of Marshall Day Acoustics constitutes an infringement of copyright. Information shall not be assigned to a third party without prior consent.

Document Control Status:

Rev:

Comments

Date:

Author:

Reviewer:

Draft

-

For team review

1 Feb 2019

Micky Yang

Craig Fitzgerald

Draft

01

For CRL review

11 Mar 2019

Micky Yang

Craig Fitzgerald

Draft

02

Updated with CRL comments

19 Mar 2019

Micky Yang

Draft

03

IPR comments

15 April 2019

Micky Yang

Cover Photo: Creative Agency 514-806-1644

TABLE OF CONTENTS 1.0

INTRODUCTION .......................................................................................................................................... 5

2.0

PROJECT DESCRIPTION ............................................................................................................................... 5

2.1

City Rail Link ................................................................................................................................................ 5

2.2

Advance Works Project .............................................................................................................................. 5

2.3

Overview ..................................................................................................................................................... 6

2.4

Programme ................................................................................................................................................. 7

2.5

Receivers ..................................................................................................................................................... 7

2.6

Key Personnel ............................................................................................................................................. 8

3.0

PERFORMANCE STANDARDS ..................................................................................................................... 9

3.1

Noise ............................................................................................................................................................ 9

3.2

Vibration .................................................................................................................................................... 10

3.3

Mercury Theatre ....................................................................................................................................... 11

4.0

PREDICTED CONSTRUCTION NOISE AND VIBRATION LEVELS ............................................................... 11

4.1

Noise .......................................................................................................................................................... 11

4.2

Vibration .................................................................................................................................................... 13

5.0

MITIGATION AND MANAGEMENT .......................................................................................................... 13

5.1

Training ...................................................................................................................................................... 13

5.2

Construction Hours................................................................................................................................... 13

5.3

Mechanical Plant Selection ...................................................................................................................... 14

5.4

General Mitigation Measures .................................................................................................................. 14

5.5

Noise Barriers ............................................................................................................................................ 15

5.6

Concrete Cutting ....................................................................................................................................... 15

5.7

Concrete Breaking .................................................................................................................................... 15

6.0

COMMUNICATION ................................................................................................................................... 16

6.1

Communication Overview ....................................................................................................................... 16

6.2

Complaints Response ............................................................................................................................... 16

7.0

MONITORING ............................................................................................................................................ 17

7.1

Noise .......................................................................................................................................................... 17

7.2

Vibration .................................................................................................................................................... 19

8.0

AFFECTED PARTIES ................................................................................................................................... 21

8.1

Airborne Noise .......................................................................................................................................... 21

8.2

Management of Adverse Effects ............................................................................................................. 22

9.0

CNV DWP REVIEW AND UPDATING (INCLUDING SSCNMP AND SSCNMP) ......................................... 22

APPENDIX A GLOSSARY OF TERMINOLOGY APPENDIX B NOISE LEVEL PREDICTIONS APPENDIX C SITE SPECIFIC MANAGEMENT PLANS APPENDIX D COMMUNICATIONS RECORDS APPENDIX E RELEVANT CONDITIONS APPENDIX F ISCA REQUIREMENTS

1.0

INTRODUCTION As part of the City Rail Link (CRL) works, a new train station, the Karangahape Station, is to be constructed. Prior to the construction of the station, buildings in the Construction Support Area (CSA) contained between Mercury Lane, East Street, Canada Street, and the Mercury Theatre are required to be demolished.

Demolition may generate a range of construction related effects. This Construction Noise and Vibration Delivery Work Plan (CNV DWP) has been prepared to manage the adverse noise and vibration effects associated with the demolition activities at the Karangahape Station CSA. This CNV DWP is required under Condition 36 of the CRL designation.

The objective of this CNV DWP is to provide for the development and implementation of the identified best practicable option to avoid, remedy or mitigate the adverse effects on receivers of noise and vibration resulting from the demolition works.

The construction activities are subject to project-specific noise and vibration performance standards.

Where compliance cannot be achieved, site specific management plans will be implemented. Site Specific Construction Noise Management Plans (SSCNMP) and Site Specific Construction Vibration Management Plans (SSCVMP) are required under Conditions 37, 38, and 39 of the CRL designation to detail the best practicable option to avoid, remedy or mitigate adverse effects on a receiver resulting from noise or vibration that does not comply with the Project Noise and Vibration Standards.

This CNV DWP is a live document that will be reviewed and updated during the Project to reflect material changes. Any such change to this CNV DWP must be submitted to Auckland Council for review at least 10 working days prior to any on-site activity reliant upon the change commencing. A formal review process is described in Section 9.0.

It is noted that SSCNMP and SSCVMP documents will not be completed until the Project commences, allowing for finalisation of the construction methods and monitoring of noise and vibration levels.

Potentially affected parties have been identified in this DWP and an outline SSCNMP or SSCVMP for each is contained in Appendix C. CRLL is seeking ISCA (infrastructure Sustainability Council of Australia) IS (Infrastructure Sustainability) Rating for the whole project lifecycle where 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).

The IS rating requirements that relate directly to this CNV DWP are included in Appendix F, which need to be reviewed, amended (as and if needed) and confirmed as the project proceeds and prior to commencing works to meet the target levels set for the project and agreed on with ISCA and CRLL. A glossary of terminology is included in Appendix A.

2.0

PROJECT DESCRIPTION

2.1

City Rail Link The CRL project comprises the construction, operation and maintenance of a 3.4km underground passenger railway, running between Britomart Station and the North Auckland Rail Line (NAL) near Mt Eden Station. CRL Enabling Works commenced in December 2015 and the procurement of the main works contract (C3 Alliance) is being progressed with contract award likely in the first quarter of 2019. To allow works to commence as soon as possible upon award of the C3 Alliance, City Rail Link Limited (CRLL) are obtaining the necessary authorisations for demolition of buildings in the Karangahape Road CSA and active construction zone (ACZ).

2.2

Advance Works Project The Project is being undertaken in accordance with CRL Designation 2500-4 confirmed in November 2015, and the Aotea Station to North Auckland Line (A2N) suite of resource consents approved in

November 2016. The conditions of these authorisations require the preparation of an Outline Plan (OP), Delivery Work Plans (DWP) and Management Plans (MP). This CNV DWP has been prepared in accordance with the CRL designation and resource consent conditions and identified in the hierarchy of documentation illustrated in Figure 1.

Figure 1 CRL Outline Plan Contents

2.3

Overview It is proposed to demolish the buildings and structures in the Karangahape Station CSA as identified in Figure 2 below.

CRLL plan to commence the process of vacating the tenanted properties in the second quarter of 2019 to ensure sites are vacant in reasonable time ahead of the planned disconnection of services.

Demolition will commence in August 2019 and extend for 8 to 12 weeks.

Demolition will be undertaken in a staged manner the order of which is to be confirmed by the C3 Alliance. Buildings at the northern end of the site are anticipated to be removed first, with demolition works progressing southward. All buildings and structures will be removed to ground level, with the retention of some existing foundations where necessary for site stability. A soft strip (wall linings etc) of salvageable materials and recycling of concrete and reinforcing steel will be carried out where possible. All demolition material will be removed from the project area and covered during transportation and disposed of at approved facilities.

The project area will be fenced, with lockable gates, to prevent unauthorised entry. Where appropriate, solid plywood fencing will be used, with appropriate signage prohibiting unauthorised entry and identifying hazards.

Demolition has the potential to produce high levels of vibration, generally from one-off events, such as dropping of concrete or other heavy items. The buildings to be removed are generally low rise (no more than three stories), with concrete block walls and/or timber or steel framing, and as such, high vibration events will largely be avoided. However residual vibration will be avoided by nibbling concrete and lowering the structure in parts rather than pulling it down in large panels.

Figure 2: CRL Mt Eden active construction zone and construction support area (CSA) shown in red

2.4

Programme The demolition works are expected to commence in late 2019 and is anticipated to require approximately 8 to 12 weeks for the work to be completed.

Normal construction hours will be 0700 – 1800 hrs, Monday to Friday and 0700 – 1400 hrs on Saturdays. If works are required outside of the normal hours, then management measures must be put in place (refer Section 5.2).

The demolition sequence for a typical site is summarised as follows and detailed in the CEMP: 1. Soft strip buildings (1 week) 2. Dismantle building structure (2 weeks) 3. Cut and/or breakup foundations if required (1 week) 4. Clear site (1 week)

2.5

Receivers Nearby receivers are identified in Figure 3. Commercial/industrial buildings are highlighted purple and residential buildings are highlighted yellow. Notable receivers and receivers requiring a SSCNVMP are labelled.

Figure 3: Receivers

2.6

Key Personnel This CNV DWP has been prepared by Micky Yang and Craig Fitzgerald from Marshall Day Acoustics, where the latter is a Member of the Acoustical Society of New Zealand (MASNZ). The key personnel responsible for this CNV DWP are detailed in Table 1. The Noise and Vibration Monitoring Manager will be responsible for implementing this CNV DWP. The Monitoring Manager will receive suitable training from the Specialist Noise and Vibration Advisor.

Table 1: Key Personnel Contact Information Role

Name

Organisation

Phone

Email

Construction Manager

TBC

TBC

TBC

TBC

Communications Manager

TBC

TBC

TBC

TBC

Role

Name

Organisation

Phone

Email

Noise & Vibration Monitoring Manager

TBC

TBC

TBC

TBC

Specialist Noise & Vibration Advisor

TBC

TBC

TBC

TBC

Compliance and Monitoring Officer

Tim O’Grady

Auckland Council

09 301 0101 021 834 584

timothy.ogrady@aucklandcouncil.govt.nz

3.0

PERFORMANCE STANDARDS

3.1

Noise

3.1.1 CRL Designation Conditions The relevant Project Construction Noise Standards in CRL designation Condition 31 are summarised in Table 2 below. Rock blasting is not required, so Condition 32 is not relevant. 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. Table 2: CRL Designation Condition 31.1 - Construction Noise Limits relating to CRL Designation 2500-4 Receiver Type

Monday to Saturday

Sundays and Public Holidays

At all other times

0700 – 2200

0700 – 2200

2200 – 0700

Occupied commercial and industrial buildings (including offices)

75 dB LAeq

75 dB LAeq

75 dB LAeq

Sensitive Noise and Vibration Receivers (excluding offices)

75 dB LAeq

65 dB LAeq

60 dB LAeq

90 dB LAFmax

80 dB LAFmax

75 dB LAFmax

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)

35 dB LAeq in sleeping areas 65 dB LAeq in outdoor playing areas

3.1.2 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 (refer Section 7.1).

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 (Appendix E), summarised as follows: •

The relevant activity, its timing, duration and predicted magnitude of exceedance (refer Section 4.1 of this DWP);

•

A summary of the communication and consultation undertaken with the receiver (refer Appendix D of this DWP); and

•

The specific methods or measures employed to mitigate the noise effects (refer Section 5.0 of this DWP).

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.

3.2

Vibration

3.2.1 Building Damage The relevant Construction Vibration Project Standards related to building damage in CRL designation Condition 33 are summarised in Table 3. Note that there are two heritage or sensitive structures identified near the demolition sites; Mercury Theatre and 238 Karangahape Road.

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 3: Project Construction Vibration Limits (Building Damage) Short-term (transient) vibration1

Type of Structure

Long-term (continuous) vibration

PPV at the foundation at a frequency of

PPV at PPV at horizontal horizontal plane plane of highest floor 50 – 100 Hz of highest floor

1 – 10 Hz

10 – 50 Hz

(mm/s)

(mm/s)

(mm/s)

(mm/s)

(mm/s)

Commercial/Industrial

20

20 – 40

40 – 50

40

10

Residential/School

5

5 – 15

15 – 20

15

5

Heritage

3

3–8

8 – 10

8

2.5

3.2.2 Amenity The relevant Construction Vibration Project Standards related to amenity are contained in CRL designation Condition 34.2. The following limits apply in response to a complaint from a building occupant: •

1

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

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.

•

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.

3.2.3 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, its timing, duration and predicted magnitude of exceedance (refer to Section 4.2 of this DWP);

•

A summary of the communication and consultation undertaken with the receiver (refer Appendix D of this DWP); and

•

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 noise and vibration, in which case it would be a SSCNVMP. Project site specific management plans are included in Appendix C.

3.3

Mercury Theatre The theatre within the Mercury Theatre building is a Notable Receiver, with specific noise and vibration requirements in Condition 39. The SSCNVMP for the theatre is included in Appendix C1.

Mitigation, management, communication and consultation protocols applying to the Mercury Theatre building and ancillary spaces (excluding the use of the theatre for performance use) are included in this CNV DWP. However, theatre specific performance standards for performance use, predicted levels, monitoring and management requirements are contained in Appendix C1.

4.0

PREDICTED CONSTRUCTION NOISE AND VIBRATION LEVELS

4.1

Noise Indicative unmitigated sound levels for the proposed equipment are presented in Table 4 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 or other means.

Table 4: Indicative noise levels from proposed equipment at 1m from a façade (unmitigated)

Equipment

Typical Operating Sound Power (dB LwA)

Noise Level (dB LAeq) at a distance (m) 5

10

20

50

Concrete Cutting

115

96

90

84

75

5T Excavator with breaker attachment

111

92

86

80

71

20T Excavator with pulveriser or shear attachment

104

85

79

73

65

20T Excavator clearing debris

103

84

78

72

64

Mobile crane

99

80

74

68

59

Road truck (idling)

84

65

59

53

45

Dismantling of buildings will primarily be carried out using a large excavator with a pulveriser or shear attachment, crane, and hand tools. Noise contours for these works in various locations are included in Appendix B. These activities are predicted to generally comply or exceed by less than 5 decibels at the majority of receivers provided that a 2m acoustic hoarding is constructed around the site perimeter and that they are undertaken in a manner consistent with the measures detailed in Section 5.0. The exception is the Mercury Theatre where the exceedance is up to 7 decibels.

Therefore, a SSCNVMP for general demolition works would not be required for the majority of receivers in accordance with Condition 37.2 (b). However, a SSCNVMP would be required for Mercury Theatre.

A concrete saw and small excavator mounted concrete breaker (e.g. 5T) will be used to remove foundations where it is not practicable to crush with a pulveriser attachment. Local noise barriers will be used for these activities in accordance with Section 5.5. Effective noise barriers reduce the noise levels in Table 4 by approximately 10 decibels for ground floor receivers. Receivers that are elevated or on upper floor levels can have line-of-sight over a barrier and into a site and would receive minimal noise mitigation. Further mitigation and management measures for concrete cutting and concrete breaking activities are included in Sections 5.6 and 5.7 respectively.

Concrete cutting and breaking noise levels are predicted to generally comply with the noise limits in Table 2. Any residual short-term exceedances (up to 5 decibels) are predicted to be local, short-term (i.e. cumulatively less than 2 weeks at any one receiver) and exceed the limits by less than 5 decibels.

The exception is at Mercury Theatre, 238 Karangahape Road, and 21 East Street where concrete cutting is predicted to locally exceed the Project Standards by up to 15 – 20 decibels. Therefore, SSCNVMPs will be required for these receivers in accordance with Condition 37.2 (b). A SSCNVMP for Mercury Theatre is required by Condition 39 and is included in Appendix C1. Draft SSCNVMPs are included in Appendix C2 and C3. Where practicable, large concrete pieces should be moved at least 20m away from these receivers prior to breaking/cutting the larger pieces into smaller pieces.

Given the close proximity of 14 East Street to 16 East Street, it is likely that there would an exceedance during the partial demolition of 16 East Street. A SSCNVMP for this receiver is attached in Appendix C6.

4.2

Vibration Concrete breakers will be the primary sources of construction vibration. While Section 5.0 provides general noise and vibration mitigation and management measures, Section 5.7 provides specific measures to minimise concrete breaking noise and vibration.

To enable compliance with the cosmetic building damage thresholds in Section 3.2, a 1 – 5 ton excavator mounted concrete breaker will be used within 10 m of buildings outside the project site.

Within 4m of the Mercury Theatre and 2m of other buildings, a hand breaker will be used (16 East Street and 18 East Street). These zones should be reviewed by the Acoustic Specialist when new information becomes apparent through vibration monitoring (Section 7.2) or other means.

Partial demolition of 16 and 18 East Street poses the highest risk to exceedance of the construction vibration criteria. At this stage, the specific demolition methodology for these properties are currently unknown and are subject to an engineering assessment. As such, the degree of risk exposure and required mitigation measures are currently unknown. In spite of this, SSCNVMPs for these properties have been developed and included in Appendix C3 and C4 respectively. As a precaution, it is recommended that pre-construction building condition surveys are carried out for these two receivers.

Building demolition has the potential to produce high levels of vibration, generally from one-off events, such as dropping of concrete or other heavy items. The buildings to be removed are low rise, with concrete block walls and timber or steel framing. As such, high vibration events will largely be avoided. However, residual vibration will be avoided by nibbling concrete and lowering the structure in parts rather than pulling it down in large panels. Accordingly, compliance is generally achievable.

A SSCNVMP for Mercury Theatre is required by Condition 39 and is included in Appendix C1.

5.0

MITIGATION AND MANAGEMENT

5.1

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, and any operational requirements and constraints identified through communication and consultation; and

•

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.

5.2

Construction Hours •

Normal construction hours are Monday to Friday, 0700 – 1800 hrs and 0700 – 1400 hrs on Saturday. Daytime works on Sundays, and evening works extending to 2200 hours between Monday to Saturday, should be minimised where practicable.

•

No night-time works are programmed, but where required, prior guidance on suitable management measures shall be sought from the Specialist Noise & Vibration Advisor (Table 1);

•

If road cutting is required, the hours shall be restricted to Monday to Friday and 0700 – 1800 and 0700 – 1400 hrs on Saturdays in accordance with Condition 36.3 (b)

•

5.3

Concrete cutting and breaking shall initially be timed to occur outside Mercury Theatre performance times (to be confirmed) to manage potential adverse effects on theatre operations.

Theatre performance times to be determined through consultation undertaken with Mercury Theatre and attached in Appendix C1.

Mechanical Plant Selection Some demolition activities have the potential to exceed the Project 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:

5.4

•

Quiet and low vibration construction methods will be used in favour of noisy/high vibration construction methods where practicable (cut and lift concrete slab instead of breaking);

•

Equipment will be well maintained;

•

Exhaust silencers will be fitted;

•

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

•

Substitute diesel engines with electric motors where practicable.

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. excavators and 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 (refer Section 5.5);

•

Implement further measures identified through communication and consultation with sensitive receivers (refer Section 6.1); and

•

5.5

Undertake noise and vibration monitoring to confirm compliance or identify high noise and/or vibration machinery (refer Section 7).

Noise Barriers Temporary noise barriers should be used where a construction noise limit is predicted to be exceeded (Section 4.1) and the barriers would noticeably reduce the construction noise level. They should 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 should be incorporated in the design and utilisation of temporary noise barriers: •

The panels should be constructed from materials with a minimum surface mass of 6.5 kg/m2.

Suitable panels include 12 mm plywood or the following proprietary ‘noise curtains’: - Duraflex ‘Noise Control Barrier - Performance 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 should be approved by a suitably qualified acoustic specialist because some proprietary noise curtains have insufficient surface mass for general use

•

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

•

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

•

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

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

5.6

5.7

Concrete Cutting •

No night-time periods and Sundays/public holidays;

•

Minimise the 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 (where appropriate); and

•

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

Concrete Breaking •

No evening and night-time periods and Sundays/public holidays;

•

An initial perimeter saw cut should be made at the perimeter to reduce vibration transfer to buildings within 10m of the works extents (Section 5.6);

•

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 offsite);

•

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 and unnecessary noise and vibration levels);

•

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.

6.0

COMMUNICATION

6.1

Communication Overview Communication with Project stakeholders in relation to construction noise and vibration impacts is described in the Project Communication and Consultation Plan.

A summary of communication with sensitive receivers will be maintained in Appendix D of this CNV DWP, including a clear explanation of where any comments from sensitive receivers have not been incorporated, and the reasons why not, as well as any outstanding issues or disputes.

As a minimum, the following communication shall be undertaken:

6.2

•

Written notification of the Project description shall be provided to all property occupiers within 50m of a worksite to raise awareness of the Project, the required construction works and their duration in their vicinity. This should be undertaken at least 20 working days prior to the commencement of works on site.

•

The Communications Manager shall advise any affected parties of construction activities that are predicted or have been identified by the Construction Manager using Table 4 or guidance from the Specialist Noise and Vibration Advisor (Table 1) to exceed the limits in Section 3.0 following the application of BPO mitigation identified in Section 5.0. Where avoidance of exceedances is impractical, consultation shall be undertaken to avoid significant adverse effects.

•

The Communications Manager shall provide monthly updates of monitoring and project progress to affected parties.

•

The Communications Manager shall undertake communications with Mercury Theatre in accordance with Condition 16.

•

The Communications Manager shall address any concerns and complaints regarding construction noise and vibration in accordance with Section 6.2. 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.

Complaints Response The contact name and phone number of the 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 Project 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 (refer Section 3.2.2); and

•

The Communications Manager shall liaise with affected parties (refer Section 8.0).

7.0

MONITORING

7.1

Noise Construction noise shall be measured and assessed: •

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

•

At the first instance of high noise activities (such as concrete cutting and concrete breaking) or in response to reasonable noise complaint being received;

•

At one metre from the most affected building façade, or, if this position is not accessible, at an equivalent position where practicable. If this is not possible, measured noise levels shall be undertaken at a proxy position and adjusted for distance and façade reflections as appropriate;

•

For a representative duration not less than 15 minutes and not greater than 60 minutes. The noise level shall be reported with the measurement duration, e.g. 65 dB LAeq (15min); and

•

The monitoring results shall be used to update Table 4 and made available to Council.

A flow chart showing the process for attended noise monitoring is included Figure 4 overleaf.

Figure 4: Noise Monitoring Flow Chart Undertake attended noise monitoring (Section 7.1): • • • •

During the first use of high noise equipment (Section 4.1) In response to a reasonable complaint (Section 6.2) To verify an exceedance (Section 7.1) As required by an SSCNMP (Appendix D)

Comply with the project standards?

(Section 3.1)

No

Notify Noise & Vibration Monitoring Manager and review mitigation and management strategies to ensure BPO (Section 5)

Yes Can project standards be practically achieved?

Yes

Identified mitigation and management opportunities

No

No

Was this in response to a previous noncompliant measurement?

Yes

Yes

Revise construction methodology

No

Does the receiver qualify for a SSCNMP? (CRL 37) Yes Prepare SSCNMP in consultation with the affected parties (Appendix D)

Submit report(s) to Noise & Vibration Monitoring Manager within one week of action taken

No

7.2

Vibration Construction vibration levels shall be measured and assessed: •

By a suitably qualified acoustics expert (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”;

•

At the first instance of high vibration activities (such as concrete breaking) or in response to reasonable complaint being receiver;

•

At the closest building foundations;

•

For a representative construction duration, measured at one second intervals;

•

By a suitably qualified and experienced specialist;

•

Vibration monitoring requires consent to access the building of interest; and

•

The monitoring results shall be used to update Section 4.2 as appropriate.

A flow chart showing the process for attended vibration monitoring is included as Figure 5 overleaf.

Figure 5: Vibration Monitoring Flow Chart Undertake attended vibration monitoring (Section 7.2): • • • •

During the first use of high vibration equipment (Section 4.2) In response to a reasonable complaint (Section 6.2) To verify an exceedance (Section 7.2) As required by an SSCVMP (Appendix D)

Cosmetic Building Damage Comply with the cosmetic building damage project standards?

(Section 3.2)

No

Yes

Notify Noise & Vibration Monitoring Manager, cease the activity, engage a structural engineer and undertake a building condition survey

Yes

Is the building classified as heritage?

Engage heritage expert

No

Is there damage as a result of the activity?

No Amenity

Yes

Type of damage?

Structural

Cosmetic

Seek advice from structural engineer before continuing

Comply with amenity project standards?

(Section 3.2)

No

Notify Noise & Vibration Monitoring Manager and review mitigation and management strategies to ensure BPO (Section 5) Yes

Yes Yes

Identified mitigation and management opportunities?

No

No

Response to a previous noncompliant measurement?

Yes

Yes

Revise construction methodology

Can the project standards be practically achieved?

No

Does the receiver qualify for a SSCVMP? (CRL 38) Yes Prepare SSCVMP in consultation with the affected parties (Appendix D)

Submit report(s) to Noise & Vibration Monitoring Manager within one week of action taken

No

The following procedures will be implemented where measured construction vibration exceeds the Project standards in Condition 33: •

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

•

Determine if the receiver qualifies for a SSCVMP (refer Section 3.2.3);

•

A detailed building condition survey will be undertaken; and

•

The 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 should be investigated, subject to implementation of the best practicable option (BPO), and the Requiring Authority shall commit to repairing the damage within a reasonable timeframe after the construction phase ceases.

8.0

AFFECTED PARTIES

8.1

Airborne Noise

8.1.1 Façade Sound Insulation 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

30 decibels sound level difference

•

Operable windows

25 decibels sound level difference

•

Open Windows

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.

8.1.2 Noise Effects ‘Noise effects matrices’ are presented in Table 5. 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 the following colour coding: •

Green:

Acceptable

•

Orange:

Appreciable

•

Red:

Significant

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

Measure the external noise level at 1m from the façade, or estimate it from Section 4.1;

•

Determine the category of façade glazing sound insulation performance from Section 8.1.1 of this CNV DWP or measured on-site façade sound level difference for a specific receiver location; and

•

Use the relevant lookup table to estimate the received internal noise level and associated typical effects that may be experienced using Table 5.

Table 5: Daytime noise levels in commercial & industrial buildings and habitable rooms in dwellings External Noise Level (dB LAeq)

8.2

Estimated Internal Noise Level (dB LAeq)

(refer Appendix B)

Sealed glazing (30 dB)

Operable windows (25 dB)

Open windows (15 dB)

95

65

70

80

90

60

65

75

85

55

60

70

80

50

55

65

75

45

50

60

70

40

45

55

65

35

40

50

•

< 50 dB LAeq

Typically acceptable

•

50 – 60 dB LAeq

Annoyance and reduction in work efficiency

•

> 60 dB LAeq

Difficulty holding a normal conversation and reduction in work efficiency

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 conditions: •

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

•

The Communications Manager will consult with affected parties to understand their sensitivities, including times, activities and locations. Consultation should focus on a collaborative approach to managing the adverse effects from construction noise and vibration while works are undertaken in the vicinity. The Communications Manager (or representative) shall be available 24/7 during works periods. A record of consultation will be included in the relevant SSCNMP (refer to 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; and

• 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.

9.0

CNV DWP REVIEW AND UPDATING (INCLUDING SSCNMP AND SSCNMP) In accordance with Conditions 7.5 and 11, this CNV DWP will undergo a review process with the relevant CRL Community Liaison Group (CLG) and a suitably qualified independent peer reviewer before being issued.

The CNV DWP (including SSCNMPs and SSCVMPs) will be updated throughout the course of the Project to reflect changes associated with construction techniques, equipment or due to unresolved

complaints. The review period will be no less than annually in accordance with Condition 22. The review(s) will take into consideration: •

Compliance with the CRL designation conditions;

•

Any significant changes to construction activities or methods;

•

Key changes to roles and responsibilities within the Project team;

•

Changes in industry best practice standards;

•

Results of inspections, monitoring and reporting procedures associated with the management of adverse effects during construction;

•

Comments or recommendations from Auckland Council; and

•

Unresolved complaints and any response to complaints and remedial action taken to address the complaint.

The process for updating this CNV DWP (including SSCNVMPs) due to a material change to the Project or the annual review, is as follows (refer to CRL designation Condition 23): •

Affected parties and the CLG must be notified of the review and any material change proposed to this DWP;

•

This DWP must clearly document the comments and inputs received from affected parties in relation to any material changes, along with a clear explanation of where any comments have not been incorporated, and the reasons why not;

•

Any material change proposed to this DWP shall be subject to an independent peer review as required by CRL designation Condition 11; and

•

Any material change proposed to this DWP relating to an adverse effect shall be submitted for approval to Auckland Council Compliance and Monitoring Officer, at least 10 working days prior to the proposed changes taking effect. If any changes are not agreed, the relevant provisions of the RMA relating to approval of outline plans shall apply.

A copy of the original CNV DWP document and subsequent versions will be kept for the Project records and marked as obsolete. Each new / updated version of the CNV DWP documentation will be issued with a version number and date to eliminate obsolete CNV DWP documentation being used.

A summary of the review process will be provided annually to Auckland Council and otherwise be made available on request.

APPENDIX A 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 generally adopted in NZ 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

CRL

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

SSCNVMP

Site Specific Construction Noise and Vibration Management Plan

SSCVMP

Site Specific Construction Vibration Management Plan

APPENDIX B NOISE LEVEL PREDICTIONS Note for the façade noise maps, the colour of the roof indicates the highest noise level on any of that buildingâ&#x20AC;&#x2122;s facade Figure 6: Grid noise map from general demolition works - north east position

Figure 7: Grid noise map from concrete cutting - north east position

Figure 8: Grid noise map from general demolition works - north west position

Figure 9: Grid noise map from concrete cutting - north west position

Figure 10: Grid noise map from general demolition works - south west position

Figure 11: Grid noise map from concrete cutting - south west position

Figure 12: Grid noise map from general demolition works â&#x20AC;&#x201C; north position

Figure 13: Grid noise map from concrete cutting - north position

Figure 14: Grid noise map from concrete cutting â&#x20AC;&#x201C; west position

APPENDIX C SITE SPECIFIC MANAGEMENT PLANS The following site-specific plans are included in this appendix: •

C1 Mercury Theatre (9 Mercury Lane)

•

C2 – 238 Karangahape Road

•

C3 – 16D and 16E East Street

•

C4 – 18 East Street

•

C5 – 21 East Street

•

C6 – 14 East Street

C1

Mercury Theatre (9 Mercury Lane) SSCNMP

C1.1

Introduction This draft Site Specific Construction Noise Management Plan (SSCNMP) is for the Mercury Theatre located at 9 Mercury Lane. A SSCNMP is required because construction is predicted to exceed the Project Noise Standards in CRL designation Condition 31 and is required to satisfy Condition 39.

This SSCNMP has been prepared in accordance with CRL designation Condition 39 and is Appendix C1 of the CRL Karangahape Station Demolition Construction Noise and Vibration Delivery Work Plan (CNV DWP). It is a supplementary document that builds on the Project CNV DWP, and therefore directly references relevant sections of the 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 Mercury Theatre.

Section C1.2 identifies the noise sensitive spaces, the predicted or measured façade sound insulation performance, predicted noise effects and recommended consultation thresholds.

As required under CRL designation Condition 39.4, Section C1.3 presents: •

The level at which noise and vibration effects will unreasonably interfere with its operations (refer Table C1.3.1)

•

Construction activities and equipment that are likely to crease adverse effects (refer Table C1.3.1)

•

The timing and duration of any exceedance (refer Table C1.3.1)

•

A summary of the communication and consultation with the receiver (refer Table C1.3.2)

•

The methods and measures to mitigate noise effects (refer Table C1.3.3)

•

A statement of why they reflect best practicable option (refer Table C1.3.3)

•

Offers made to mitigate effects (refer Table C1.3.3)

This draft SSCNMP has been prepared by Marshall Day Acoustics Ltd and forms part of the Construction Environmental Management Plan (CEMP) for the Project.

C1.2

Building Details Pre Construction Consultation The building is a commercial hire venue and is used throughout the week at various times during the day and/or evening, depending on type of booking.

The various types of uses include: •

Private functions;

•

Festivals;

•

Opera;

•

Film set;

•

School events;

•

Product road shows;

•

Small conferences/lectures

The church does not generally hold services as the congregation has outgrown the capacity of the space. However, it may be used as a backup if the other properties that are hired out are not available for some activities.

Table 6: Various uses within Mercury Theatre Space

Layout

Use

Foyer

Open area on ground floor

Social events; cocktail parties; pre-show events

Upper Theatre

Approx. 120 seats

Variety

Main Theatre

585 seats

Variety

Dome Room

Upper Level

Social events; cocktail parties; pre-show events

Façade Sound Insulation Performance**TBC** The building at 9 Mercury Lane (the Mercury Theatre) is a three story building with brick façades, operable glazing and a pitched steel roof. The estimated sound level difference across the façade with the windows and doors closed is 25 decibels and 30 decibels on a façade with no windows. On this basis, the predicted construction noise effects can be determined from Table 5 in Section 8.1.2.

The façade that faces the construction site appears to have windows/doors set into the façade.

Therefore, the façade reduction is estimated to be 25 decibels. The façade performance shall be measured during initial proximate demolition works and updated.

Vibration Concern Mercury Theatre is a heritage building close to the demolition site therefore the vibration criteria to address the issue is the building damage criteria. The relevant limit is 2.5mm/s PPV. Refer Section 3.2 of this CNV DWP for the full limits.

Consultation Trigger Level In addition to regular communication in accordance with Condition 16, specific consultation should be undertaken prior to construction works that are predicted to exceed 75 dB LAeq at the façade during the day, and 65 dB LAeq at the façade during any scheduled theatre performance. The consultation process is set out in Section 8.3 of the CNV DWP. Consultation should also be carried out if vibration levels exceed 2mm/s PPV on the foundations at the closest façade.

C1.3

Activity Detail Communication and Consultation Table C1.3.1 details activities that are predicted to exceed the noise limits in CRL designation Condition 31 and the predicted noise effects. Table C1.3.2 provides a summary of consultation with the property owners and/or tenants representatives and identifies methods and measures to mitigate noise effects and a statement of why they reflect best practicable option.

Table C1.3.1: Activity Detail (Noise) #

Activity Details

Predicted Noise Effects

1

Activity Period Duration Days Hours

Concrete Cutting XX 2019 – YY 2019 1-2 days Wed to Thu X – Y hours

Location: External noise level: Façade performance: Internal noise level: Potential noise effects:

South Facade 90 – 95 dB LAeq 25 decibels sound level difference up to 65 – 70 dB LAeq Difficulty in communication/work efficiency

2

Activity Period Duration Days Hours

General Demolition XX 2019 – YY 2019 1-2 days Wed to Thu X – Y hours

Location: External noise level: Façade performance: Internal noise level: Potential noise effects:

South Facade 77 – 82 dB LAeq 25 decibels sound level difference 57 – 62 dB LAeq Difficulty in communication/work efficiency

Table C1.3.2: Communication and Consultation #

Details

1

Receiver Date Name Phone Email CRL rep

Owner 21/February/19 Ed Anderson/Matt Gregory 021 614 921matt.gregory@eq uipperschurch.comLo uise Strogen

A. The different uses of the various spaces and when there may likely be an event

Receiver Date Name Phone Email CRL rep

Tenant DD/MM/YY X X X X

A.

2

Matters discussed

B. A query was raised about vibration from demolition works potential affecting the building. Compliance is predicted with the vibration limits, which would avoid cosmetic building damage. Nonetheless, Appendix Two of the CRL designation conditions list the Mercury Theatre as building number 55 to be considered for a pre-construction building condition survey. This will ensure any attributable damage is captured and remedied regardless during this phase of works and any future works.

B. C. Conclusion:

Table C1.3.3: Mitigation Measures **indicative examples only** #

Actions / specific mitigation measures

1

A. Employ additional local hoardings and/or enclosures around slurry plant if non-compliant and practicable.

B. Minimise mobile crane usage period and engine revs C. Manage unnecessary impact sounds, e.g. careful handling and by using strops in place of chains BPO Conclusion: X

2

A. B. C. BPO Conclusion: X

C2

238 Karangahape Road SSCNMP

C2.1

Introduction This draft Site Specific Construction Noise Management Plan (SSCNMP) is for the residential building located at 238 Karangahape Road. A SSCNMP is required because construction is predicted to exceed the Project Noise Standards in CRL designation Condition 31.

This SSCNMP has been prepared in accordance with CRL designation Condition 37 and is Appendix C2 of the CRL Karangahape Station Demolition Construction Noise and Vibration Delivery Work Plan (CNV DWP). It is a supplementary document that builds on the Project CNV DWP, and therefore directly references relevant sections of the 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 238 Karangahape Road.

Section C2.2 identifies the noise sensitive spaces, the predicted or measured façade sound insulation performance, predicted noise effects and recommended consultation thresholds.

As required under CRL designation Condition 37.5, Section C2.3 presents: •

The extent to which noise may exceed the Project Noise Standards (refer Table C2.3.1)

•

The timing and duration of any exceedance (refer Table C2.3.1)

•

The type of activity causing any exceedance (refer Table C2.3.1)

•

A summary of the communication and consultation with the receiver (refer Table C2.3.2)

•

The methods and measures to mitigate noise effects (refer Table C2.3.3)

•

A statement of why they reflect best practicable option (refer Table C2.3.3)

This draft SSCNMP has been prepared by Marshall Day Acoustics Ltd and forms part of the Construction Environmental Management Plan (CEMP) for the Project.

C2.2

Building Details Pre Construction Consultation **TBC** Summarise meeting(s), including information on building layout, noise sensitive spaces and the identification of specific tenant sensitivities that require further investigation.

Façade Sound Insulation Performance**TBC** The building at 238 Karangahape Road is a five story building with a basement carpark and masonry façades, operable glazing and a slanted steel roof. The estimated sound level difference across the façade with the windows and doors closed is 25 decibels and 30 decibels on a façade with no windows. On this basis, the predicted construction noise effects can be determined from Table 5 in Section 8.1.2.

Consultation Trigger Level **TBC** In addition to regular communication, specific consultation should be undertaken prior to construction works that are predicted to exceed 75 dB LAeq at the façade during the day. The consultation process is set out in Section 8.3 of the CNV DWP.

C2.3

Activity Detail Communication and Consultation Table C2.3.1 details activities that are predicted to exceed the noise limits in CRL designation Condition 31 and the predicted noise effects. Table C2.3.2 provides a summary of consultation with the property owners and/or tenants representatives and identifies methods and measures to mitigate noise effects and a statement of why they reflect best practicable option.

Table C2.3.1: Activity Detail (Noise) ** indicative examples only** #

Activity Details

Predicted Noise Effects

1

Activity Period Duration Days Hours

Concrete Cutting XX 2019 – YY 2019 1-2 days Wed to Thu X – Y hours

Location: External noise level: Façade performance: Internal noise level: Potential noise effects:

West façade 80 – 85 dB LAeq 25 decibels sound level difference 55 – 60 dB LAeq Annoyance

2

Activity Period Duration Days Hours

X X X X X

Receiver: Location: External noise level: Façade performance: Internal noise level: Potential noise effects:

X X X X X X

Table C2.3.2: Communication and Consultation **indicative examples only** #

Details

1

Receiver Date Name Phone Email CRL rep

Matters discussed Owner DD/MM/YY X X X X

A. Employ additional local hoardings and/or enclosures around noisy plant if non-compliant and practicable B. Communications Manger to liaise and provide monitoring results and notification of upcoming works C. Manage unnecessary impact sounds, e.g. careful handling and by using strops in place of chains Conclusion: Considered to be the BPO because it considers the needs of the stakeholder and mitigates and manages the noise levels as far as practicable.

2

Receiver Date Name Phone Email CRL rep

Tenant DD/MM/YY X X X X

A. B. C. Conclusion:

Table C2.3.3: Mitigation Measures **indicative examples only** #

Actions / specific mitigation measures

1

A. Employ additional local hoardings and/or enclosures around slurry plant if non-compliant and practicable.

B. Minimise mobile crane usage period and engine revs C. Manage unnecessary impact sounds, e.g. careful handling and by using strops in place of chains BPO Conclusion: X

2

A. B. C. BPO Conclusion: X

C3

16 East Street SSCVMP

C3.1

Introduction This draft Site Specific Construction Vibration Management Plan (SSCVMP) is for the residential building located at 16 East Street. A SSCVMP is required because construction is predicted to exceed the Project Vibration Standards in CRL designation Condition 33.

This SSCVMP has been prepared in accordance with CRL designation Condition 38 and is Appendix C3 of the CRL Karangahape Station Demolition Construction Noise and Vibration Delivery Work Plan (CNV DWP). It is a supplementary document that builds on the Project CNV DWP, and therefore directly references relevant sections of the DWP to avoid repetition. The objective of this SSCVMP is to detail the best practicable option(s) to avoid, remedy or mitigate the identified adverse effects from vibration exceedances at 16D & 16E East Street.

Section C3.2 identifies the pre-construction building condition, predicted vibration effects, and recommended consultation thresholds.

As required under CRL designation Condition 38.5, Section C3.3 presents: •

The timing and duration of any exceedance (refer Table C3.3.1)

•

The type of activity causing any exceedance (refer Table C3.3.1)

•

Site Specific vibration criteria that addresses the issue of concern (building damage, amenity, or sensitive equipment)

•

A summary of the communication and consultation with the receiver (refer Table C3.3.2)

•

The methods and measures to mitigate noise effects (refer Table C3.3.3)

•

A statement of why they reflect best practicable option (refer Table C3.3.3)

This draft SSCVMP has been prepared by Marshall Day Acoustics Ltd and forms part of the Construction Environmental Management Plan (CEMP) for the Project.

C3.2

Building Details Pre Construction Consultation **TBC** Summarise meeting(s), including information on building layout, noise sensitive spaces and the identification of specific tenant sensitivities that require further investigation.

Vibration Concern**TBC** 16 East Street require partial demolition and therefore the vibration criteria to address the issue is the building damage criteria. The relevant limit is 5mm/s PPV. Refer Section 3.2 of this CNV DWP for the full limits. 16 East Street is also a printing business and may therefore have sensitive equipment.

Pre-construction Building Survey Results**TBC** Consultation Trigger Level **TBC** In addition to regular communication, specific consultation should be undertaken prior to construction works that are predicted to exceed 5mm/s PPV. The consultation process is set out in Section 8.3 of the CNV DWP.

C3.3

Activity Detail Communication and Consultation Table C3.3.1 details activities that are predicted to exceed the vibration limits in CRL designation Condition 33 and the predicted vibration effects. Table C3.3.2 provides a summary of consultation with the property owners and/or tenants representatives and identifies methods and measures to mitigate noise effects and a statement of why they reflect best practicable option.

Table C3.3.1: Activity Detail (Vibration) ** indicative examples only** #

Activity Details

Predicted Noise Effects

1

Activity Period Duration Days Hours

Concrete Cutting XX 2019 – YY 2019 1-2 days Wed to Thu X – Y hours

Location:

Activity Period Duration Days Hours

X X X X X

Receiver: Location: External noise level: Façade performance: Internal noise level: Potential noise effects:

2

East façade

Vibration Level Potential noise effects:

X X X X X X

Table C3.3.2: Communication and Consultation **indicative examples only** #

Details

1

Receiver Date Name Phone Email CRL rep

Owner DD/MM/YY X X X X

A.

Receiver Date Name Phone Email CRL rep

Tenant DD/MM/YY X X X X

A.

2

Matters discussed

B. C. Conclusion:

B. C. Conclusion:

Table C3.3.3: Mitigation Measures **indicative examples only** #

Actions / specific mitigation measures

1

A. B. C. BPO Conclusion:

2

A. B. C. BPO Conclusion: X

C4

18 East Street SSCVMP

C4.1

Introduction This draft Site Specific Construction Vibration Management Plan (SSCVMP) is for the residential building located at 18 East Street. A SSCVMP is required because construction is predicted to exceed the Project Vibration Standards in CRL Condition 33.

This SSCVMP has been prepared in accordance with CRL designation Condition 38 and is Appendix C4 of the CRL Karangahape Station Demolition Construction Noise and Vibration Delivery Work Plan (CNV DWP). It is a supplementary document that builds on the Project CNV DWP, and therefore directly references relevant sections of the DWP to avoid repetition. The objective of this SSCVMP is to detail the best practicable option(s) to avoid, remedy or mitigate the identified adverse effects from vibration exceedances at 18 East Street.

Section C4.2 identifies the pre-construction building condition, predicted vibration effects, and recommended consultation thresholds.

As required under CRL designation Condition 38.5, Section C4.3 presents: •

The timing and duration of any exceedance (refer Table C4.3.1)

•

The type of activity causing any exceedance (refer Table C4.3.1)

•

Site Specific vibration criteria that addresses the issue of concern (building damage, amenity, or sensitive equipment)

•

A summary of the communication and consultation with the receiver (refer Table C4.3.2)

•

The methods and measures to mitigate noise effects (refer Table C4.3.3)

•

A statement of why they reflect best practicable option (refer Table C4.3.3)

This draft SSCVMP has been prepared by Marshall Day Acoustics Ltd and forms part of the Construction Environmental Management Plan (CEMP) for the Project.

C4.2

Building Details Pre Construction Consultation **TBC** Summarise meeting(s), including information on building layout, noise sensitive spaces and the identification of specific tenant sensitivities that require further investigation.

Vibration Concern**TBC** 18 East Street require partial demolition and therefore the vibration criteria to address the issue is the building damage criteria. The relevant limit is 5mm/s PPV. Refer Section 3.2 of this CNV DWP for the full limits.

Pre-construction Building Survey Results**TBC** Consultation Trigger Level **TBC** In addition to regular communication, specific consultation should be undertaken prior to construction works that are predicted to exceed 5mm/s PPV. The consultation process is set out in Section 8.3 of the CNV DWP.

C4.3

Activity Detail Communication and Consultation Table C4.3.1 details activities that are predicted to exceed the vibration limits in CRL designation Condition 33 and the predicted vibration effects. Table C4.3.2 provides a summary of consultation with the property owners and/or tenants representatives and identifies methods and measures to mitigate noise effects and a statement of why they reflect best practicable option.

Table C4.3.1: Activity Detail (Vibration) ** indicative examples only** #

Activity Details

Predicted Noise Effects

1

Activity Period Duration Days Hours

Concrete Cutting XX 2019 – YY 2019 1-2 days Wed to Thu X – Y hours

Location:

Activity Period Duration Days Hours

X X X X X

Receiver: Location: External noise level: Façade performance: Internal noise level: Potential noise effects:

2

South Facade

Vibration Level Potential noise effects:

X X X X X X

Table C4.3.2: Communication and Consultation **indicative examples only** #

Details

1

Receiver Date Name Phone Email CRL rep

Owner DD/MM/YY X X X X

A.

Receiver Date Name Phone Email CRL rep

Tenant DD/MM/YY X X X X

A.

2

Matters discussed

B. C. Conclusion:

B. C. Conclusion:

Table C4.3.3: Mitigation Measures **indicative examples only** #

Actions / specific mitigation measures

1

A. B. C. BPO Conclusion:

2

A. B. C. BPO Conclusion: X

C5

21 East Street SSCNMP

C5.1

Introduction This draft Site Specific Construction Noise Management Plan (SSCNMP) is for the commercial building located at 21 East Street, otherwise known as Uno Loco. A SSCNMP is required because construction is predicted to exceed the Project 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 CRL Karangahape Demolition Construction Noise and Vibration Delivery Work Plan (CNV DWP). It is a supplementary document that builds on the Project CNV DWP, and therefore directly references relevant sections of the 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 21 East Street.

Section C5.2 identifies the noise sensitive spaces, the predicted or measured façade sound insulation performance, predicted noise effects and recommended consultation thresholds.

As required under CRL designation Condition 37.5, Section C5.3 presents: •

The extent to which noise may exceed the Project Noise Standards (refer Table C5.3.1)

•

The timing and duration of any exceedance (refer Table C5.3.1)

•

The type of activity causing any exceedance (refer Table C5.3.1)

•

A summary of the communication and consultation with the receiver (refer Table C5.3.2)

•

The methods and measures to mitigate noise effects (refer Table C5.3.3)

•

A statement of why they reflect best practicable option (refer Table C5.3.3)

This draft SSCNMP has been prepared by Marshall Day Acoustics Ltd and forms part of the Construction Environmental Management Plan (CEMP) for the Project.

C5.2

Building Details Pre Construction Consultation **TBC** Summarise meeting(s), including information on building layout, noise sensitive spaces and the identification of specific tenant sensitivities that require further investigation.

Façade Sound Insulation Performance**TBC** The building at 21 East Street is a double story building with masonry façades, operable glazing, and a slanted steel roof. The estimated sound level difference across the façade with the windows and doors closed is 25 decibels and 30 decibels on a façade with no windows. On this basis, the predicted construction noise effects can be determined from Table 5 in Section 8.1.2.

Consultation Trigger Level **TBC** In addition to regular communication, specific consultation should be undertaken prior to construction works that are predicted to exceed 75 dB LAeq at the façade during the day. The consultation process is set out in Section 8.3 of the CNV DWP.

C5.3

Activity Detail Communication and Consultation Table C5.3.1 details activities that are predicted to exceed the noise limits in CRL designation Condition 31 and the predicted noise effects. Table C5.3.2 provides a summary of consultation with the property owners and/or tenants representatives and identifies methods and measures to mitigate noise effects and a statement of why they reflect best practicable option.

Table C5.3.1: Activity Detail (Noise) ** indicative examples only** #

Activity Details

Predicted Noise Effects

1

Activity Period Duration Days Hours

Concrete Cutting XX 2019 – YY 2019 1-2 days Wed to Thu X – Y hours

Location: External noise level: Façade performance: Internal noise level: Potential noise effects:

East façade 80 – 85 dB LAeq 25 decibels sound level difference 55 – 60 dB LAeq Annoyance

2

Activity Period Duration Days Hours

X X X X X

Receiver: Location: External noise level: Façade performance: Internal noise level: Potential noise effects:

X X X X X X

Table C5.3.2: Communication and Consultation **indicative examples only** #

Details

1

Receiver Date Name Phone Email CRL rep

Matters discussed Owner DD/MM/YY X X X X

A. Employ additional local hoardings and/or enclosures around noisy plant if non-compliant and practicable B. Communications Manger to liaise and provide monitoring results and notification of upcoming works C. Manage unnecessary impact sounds, e.g. careful handling and by using strops in place of chains Conclusion: Considered to be the BPO because it considers the needs of the stakeholder and mitigates and manages the noise levels as far as practicable.

2

Receiver Date Name Phone Email CRL rep

Tenant DD/MM/YY X X X X

A. B. C. Conclusion:

Table C5.3.3: Mitigation Measures **indicative examples only** #

Actions / specific mitigation measures

1

A. Employ additional local hoardings and/or enclosures around slurry plant if non-compliant and practicable.

B. Minimise mobile crane usage period and engine revs C. Manage unnecessary impact sounds, e.g. careful handling and by using strops in place of chains BPO Conclusion: X

2

A. B. C. BPO Conclusion: X

C6

14 East Street SSCNMP

C6.1

Introduction This draft Site Specific Construction Noise Management Plan (SSCNMP) is for the residential building located at 14 East Street. A SSCNMP is required because construction is predicted to exceed the Project Noise Standards in CRL designation Condition 31.

This SSCNMP has been prepared in accordance with CRL designation Condition 37 and is Appendix C2 of the CRL Karangahape Station Demolition Construction Noise and Vibration Delivery Work Plan (CNV DWP). It is a supplementary document that builds on the Project CNV DWP, and therefore directly references relevant sections of the 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 14 East Street.

Section C6.2 identifies the noise sensitive spaces, the predicted or measured façade sound insulation performance, predicted noise effects and recommended consultation thresholds.

As required under CRL designation Condition 37.5, Section C6.3 presents: •

The extent to which noise may exceed the Project Noise Standards (refer Table C6.3.1)

•

The timing and duration of any exceedance (refer Table C6.3.1)

•

The type of activity causing any exceedance (refer Table C6.3.1)

•

A summary of the communication and consultation with the receiver (refer Table C6.3.2)

•

The methods and measures to mitigate noise effects (refer Table C6.3.3)

•

A statement of why they reflect best practicable option (refer Table C6.3.3)

This draft SSCNMP has been prepared by Marshall Day Acoustics Ltd and forms part of the Construction Environmental Management Plan (CEMP) for the Project.

C6.2

Building Details Pre Construction Consultation **TBC** Summarise meeting(s), including information on building layout, noise sensitive spaces and the identification of specific tenant sensitivities that require further investigation.

Façade Sound Insulation Performance**TBC** The building at 14 East Street is a two story building with masonry façades, operable glazing, and a slanted steel roof. The estimated sound level difference across the façade with the windows and doors closed is 25 decibels and 30 decibels on a façade with no windows. On this basis, the predicted construction noise effects can be determined from Table 5 in Section 8.1.2.

Consultation Trigger Level **TBC** In addition to regular communication, specific consultation should be undertaken prior to construction works that are predicted to exceed 75 dB LAeq at the façade during the day. The consultation process is set out in Section 8.3 of the CNV DWP.

C6.3

Activity Detail Communication and Consultation Table C6.3.1 details activities that are predicted to exceed the noise limits in CRL designation Condition 31 and the predicted noise effects. Table C6.3.2 provides a summary of consultation with the property owners and/or tenants representatives and identifies methods and measures to mitigate noise effects and a statement of why they reflect best practicable option.

Table C6.3.1: Activity Detail (Noise) ** indicative examples only** #

Activity Details

Predicted Noise Effects

1

Activity Period Duration Days Hours

Concrete Cutting XX 2019 – YY 2019 1-2 days Wed to Thu X – Y hours

Location: External noise level: Façade performance: Internal noise level: Potential noise effects:

East façade 85 – 90 dB LAeq 25 decibels sound level difference 60 – 65 dB LAeq Communication difficulty

2

Activity Period Duration Days Hours

X X X X X

Receiver: Location: External noise level: Façade performance: Internal noise level: Potential noise effects:

X X X X X X

Table C6.3.2: Communication and Consultation **indicative examples only** #

Details

1

Receiver Date Name Phone Email CRL rep

Matters discussed Owner DD/MM/YY X X X X

A. Employ additional local hoardings and/or enclosures around noisy plant if non-compliant and practicable B. Communications Manger to liaise and provide monitoring results and notification of upcoming works C. Manage unnecessary impact sounds, e.g. careful handling and by using strops in place of chains Conclusion: Considered to be the BPO because it considers the needs of the stakeholder and mitigates and manages the noise levels as far as practicable.

2

Receiver Date Name Phone Email CRL rep

Tenant DD/MM/YY X X X X

A. B. C. Conclusion:

Table C6.3.3: Mitigation Measures **indicative examples only** #

Actions / specific mitigation measures

1

A. Employ additional local hoardings and/or enclosures around slurry plant if non-compliant and practicable.

B. Minimise mobile crane usage period and engine revs C. Manage unnecessary impact sounds, e.g. careful handling and by using strops in place of chains BPO Conclusion: X

2

A. B. C. BPO Conclusion: X

APPENDIX D COMMUNICATIONS RECORDS Communications records are contained in the communication and consultation plan.

CLG comments on this DWP are contained in Table 7 and the Independent peer review comments are included in Table 8 overleaf.

Table 7: CLG review comments Date

CLG Member

Comment

Response Craig Fitzgerald (MDA)

Table 8: Independent peer review comments (11 April 2019) DWP Section

Comment

Response

2.3

Consideration should be given to removing southern buildings first, while the northern buildings remain to provide some acoustics screening to the most affected neighbours.

Consideration was given to this approach. However, this is not practicable due to the availability of the Mercury Plaza site later in the demolition programme.

2.4/5.2

Circumstances under which â&#x20AC;&#x2DC;normalâ&#x20AC;&#x2122; hours might be exceeded should be stated, along with any corresponding management procedures.

No change, details are provided. Also, consistent with updates in response to the same question for Mt Eden demolition CNV DWP.

2.4

Highlighted details to be confirmed.

To be confirmed once the contractor is appointed

2.5

All receivers should be labelled in Figure 3.

Relevant receivers that require an SSCNVMP have been labelled. It is not considered necessary to highlight all other receivers.

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.

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

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 either be amended to include all items listed in condition 37.4 or be introduced as an extract and not a summary.

No change. This section summarises Condition 37.4 and is not an extract of this condition.

3.2.3

The list of matters to be addressed by a SSCVMP should either be amended to include all items listed in condition 38.5 or be introduced as an extract and not a summary.

No change. This section summarises Condition 38.5 and is not an extract of this condition.

DWP Section

Comment

Response

3.3

The SSCNVMP for Mercury Theatre should relate to all aspects of construction noise and vibration affecting that building and not just in relation to performances. Given that the SSCNVMP should include specific consultation and building details, it would be inappropriate to then rely on less detailed generic information in the main CNV DWP for some aspects.

The theatre is a notable receiver and is required to have an SSCNVMP. Therefore, an assessment is required for the other parts of the building to determine if further detail for those parts of the building needs to be included in the SSCNVMP.

4.2

Reference should be added to use of concrete cutting to reduce vibration from breaking (as per 5.7).

No change, concrete cutting is noted as a mitigation measure for breaking in Section 5.7 and this section is cross-referenced in Section 4.2

5.2

Advice from the Specialist Noise & Vibration Advisor regarding night-works should be recorded in a SSCNVMP or the CNV DWP.

No change. Bullet point 2 of Section 5.2 specifically says that guidance should be sought from the Specialist Noise and Vibration Advisor if night-works is required. This may not trigger the need for a SSCNVMP.

5.5

Specific details of temporary barriers should be stated rather than options.

No change. This will be confirmed by the contractor once appointed.

6

Highlighted details to be confirmed.

To be confirmed once the contractor is appointed

6.1

The process to be followed by the Construction Manager to identify exceedances of noise limits should be documented.

Updated with a line to outline how the Construction Manager would identify exceedances

7.2

Reference is made to building condition surveys in response to monitoring. There should be building condition surveys of all receivers prior to works.

Section 7.2 relates to response protocol during monitoring. Two properties are potentially at risk; 16 and 18 East Street, however, the risk is currently unknown as the demolition methodology at these two receivers is unknown. Have added text to Section 4.2 to allow for building conditions surveys for these two properties.

B

From the 3D images it appears that all sound sources might be relatively close to the ground in the model. Predictions should be included for sound sources such as concrete crushing/nibbling at higher levels above the ground as well.

No change. The dominant constant noise source controlling compliance is predicted to be the engine of the excavator at low level, rather than the intermittent crushing/nibbling sounds at upper levels.

C

The draft SSCNVMPs do not contain sufficient details to allow review with respect to the designation conditions.

To be confirmed once the contractor is appointed and consultation is undertaken

C1

Headings need to reflect all the requirements of condition 39.

No change, all matters required in Condition 39 is detailed in the introduction section with crossreferences to the relevant table of this SSCNVMP

C1.2

Reference to a church should be clarified.

The owner of the building is a church. However, it no longer uses the venue for church services.

C1.2

A consultation trigger threshold should be added for vibration

Updated

The SSCNVMP details covers other aspects of the building and discusses all relevant noise and vibration exceedances/consultation triggers.

DWP Section

Comment

Response

E

This section appears to have been copied from a previous document without being updated. For example, reference is made to Condition 35 for Mediaworks but not Condition 39 for Notable Receivers.

Deleted Mediaworks Condition and updated Condition 39 references

APPENDIX E RELEVANT CONDITIONS Table 9 identifies the relevant CRL designation conditions and where they are addressed in the document.

Table 9: CRL Conditions and CNV DWP section where addressed Condition Description

CNV DWP ref.

16

Communications – Notable Noise and Vibration Receivers

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

Section 3.2.3

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.

Section 3.2.3

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

Monday to Saturday 0700 – 2200

Sundays and Public Holidays 0700 – 2200

At all other times 2200 – 0700

Occupied commercial and industrial buildings (including offices)

75 dB LAeq

75 dB LAeq

75 dB LAeq

75 dB LAeq 90 dB LAFmax

65 dB LAeq 1 80 dB LAFmax2

60 dB LAeq 75 dB LAFmax

Sensitive Noise and Vibration Receivers (excluding offices) 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)

Section 3.1.1

35 dB LAeq in sleeping areas

35 dB LAeq in sleeping areas 65 dB LAeq in outdoor playing areas

Notes: 1. 60 dB LAeq for Designation 5 and Designation 6; and 2. 75 dB LAFmax for Designation 5 and Designation 6.

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 For the avoidance of doubt this condition only applies to NoR 6 where blasting is required

Sections 3.1.1 and 7.1

N/A

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

Section 3.2.1

Short-term (transient) vibration1

Long-term (continuous) vibration PPV at the foundation at a PPV at PPV at horizontal plane frequency of horizontal plane of highest floor (mm/s) 1-10Hz 10-50Hz 50-100Hz of highest floor (mm/s) (mm/s) (mm/s) (mm/s) 20 20 – 40 40 – 50 40 10

Commercial/ Industrial Residential/ 5 5 – 15 15 – 20 15 5 School Historic or 3 3–8 8 – 10 8 2.5 sensitive structures 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:

Sections 3.2.1 and 7.2

N/A

(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:

Section 3.2.2

(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.

Section 3.2.3

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).

Section 3.2.3

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

This document

and implementation of identified best practicable option to avoid, 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)

Sections 3 & 5

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) 36.3

Identify methods to achieve best practicable option for mitigating adverse effects.

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;

Sections 2 & 5

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

Section 5

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

Section 4, Appendix B

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;

Section 2.5, 4, Appendix B

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

Section 4, Appendix C

f) The location of sensitive noise and vibration receivers;

Section 2, 4, Appendix C

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;

Section 6, Appendix D

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

Sections 6, 7, 8, Appendix C

i) Specific training procedures for construction personnel including;

Section 5

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

Sections 5, 6, 7, Appendix C

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:

Sections 4, 7, 8, Appendix C

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; 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.

Section 6, Appendix C

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.

Appendix C

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:

Sections 3, 4, Appendix C

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.

Sections 7

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

N/A

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) 37.5

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

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;

Section 4, Appendix C

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, faรงade 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.

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.

Appendix C

38.2

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

Sections 3, 4, 6 Appendix C

a)

Section 8

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.

38.3

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

Section 3

Best practicable management of vibration must be applied; and

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.

Section 3

38.5

SSCVMPs will identify:

Section 4, Appendix C

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 highvibration 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

Section 8 & 9, Appendix C

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

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

N/A

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.

Appendix C1

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 C1.3

39.4

The SSCNVMP shall include:

Appendix C1.2 and C1.3

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)

39.5

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;

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)

N/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 â&#x20AC;&#x201C; Medial Works

N/A

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.

Appendix C1.4

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.

Appendix C1.4

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.

Appendix C1.4

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.

Appendix C1.4

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.

Appendix C1.4

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.

Appendix C1.3

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.

Appendix C1.5

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 distrance 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 C1.3

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.

Appendix C1.2

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 C1.2

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:

Appendix C1.2

(a) Immediate cessation of the work(s) that is giving rise to the exceedance; (b) A procedure to require the implementation of whatever measures are necessary to reduce the noise or vibration levels; (c) A monitoring procedure to determine compliance (once the remediation works are complete); (d) A requirement to ensure that the work(s) responsible for the exceedance are not recommenced during Sensitive Times; (e) 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.

Appendix C1.2

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

Appendix C1.2

undertaken in accordance with the SSCNVMP confirmed by the Requiring Authority as part of the Outline Plan process.

APPENDIX F ISCA REQUIREMENTS CRLL is seeking ISCA (infrastructure Sustainability Council of Australia) IS (infrastructure Sustainability) Rating for the whole project lifecycle where 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). This Appendix includes IS requirements that are necessary to achieve a target level 2 of Dis-2 and Dis-3 ISCA credits. These requirements remain subject to change as the project goes forward. Hence, the below Table 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.

ISCA Category

Target Level

Dis-2

2

Noise

Construction Requirements

How we Aim to achieve this

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.

AND Monitoring of noise is undertaken at appropriate intervals and in response to complaints during construction AND For construction, modelling and monitoring demonstrates no recurring or major divergences from the noise management process in ISCA approved noise guidelines.

Section 3.1.2 – for site specific noise management plans.

Section 5 – for general mitigation measures Section 6.2 – Complaints Response Section 7.1 - Monitoring .

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

Dis-3

2

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

Section 3.2.1 – for building damage standards

AND

Section 3.2.3 – For site specific management plans.

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

Section 5 – For general mitigation measures

AND

Section 6.2 - Complaints

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

Section 7.2 Monitoring

AND 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.

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