Normanby Road Early Works Construction Noise and Vibration Delivery Work Plan
CRL-MTE-RME-LKA-PLN-800007
Revision: 001 Date: 24 February 2020
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| Normanby Road Early Works
Construction Noise and Vibration Delivery Work Plan
Document title CRL-MTE-RME-LKA-PLN-800007 This document is uncontrolled when printed. This document should be printed in colour
Revision Status Revision
Date
Version details
Prepared By
Approved By
Rev A00
18/10/19
Mana Whenua / CRL / CLG review
Richard Deane /
Peter Roan
Craig Fitzgerald Rev A01
26/11/19
IPR and Auckland Council review
Richard Deane /
Peter Roan
Craig Fitzgerald Rev 000
18/12/19
For Submission
Richard Deane /
Peter Roan
Craig Fitzgerald Rev 000A
31/01/20
IPR and Council review updates
Craig Fitzgerald
Peter Roan
Rev 000B
17/02/20
Council review updates
Craig Fitzgerald
Peter Roan
Rev 001
24/02/20
Final with BPO statements added to SSCNVMPs
Craig Fitzgerald
Peter Roan
Approval Status Name/Title Prepared by:
Richard Deane
Signature
Date 24/02/2020
Acoustic Consultant Reviewed by:
Craig Fitzgerald
24/02/2020
Acoustic Consultant Approved by:
Peter Roan Consenting Lead – Link Alliance
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24/02/2020
Construction Noise and Vibration Delivery Work Plan
Table of contents 1. Introduction ............................................................................................. 5 1.1
Overview of CRL works in Mt Eden ................................................................................ 5
1.2
Purpose of the CNV DWP ............................................................................................... 6
1.3
Relevant Conditions ...................................................................................................... 6
1.4
DWP Review and updates............................................................................................ 13
2. Normanby Road Early Works ................................................................. 14 2.1
Overview of Works...................................................................................................... 14
2.2
Construction Methodology .......................................................................................... 14
3. Receivers and Building Types ................................................................. 15 4. Key Personnel ........................................................................................ 16 5. Performance Standards.......................................................................... 17 5.1
Noise .......................................................................................................................... 17
5.2
Vibration..................................................................................................................... 18
6. Predicted Levels ..................................................................................... 20 6.1
Noise .......................................................................................................................... 20
6.2
Vibration..................................................................................................................... 22
6.3
The Project (Mediaworks) ........................................................................................... 22
7. Mitigation and management.................................................................. 23 7.1
Training ...................................................................................................................... 23
7.2
Construction Hours ..................................................................................................... 23
7.3
Mechanical Plant Selection .......................................................................................... 23
7.4
General Mitigation Measures ...................................................................................... 23
7.5
Noise Barriers and Enclosures ...................................................................................... 24
7.6
Concrete and Paver Cutting ......................................................................................... 25
7.7
Concrete and Rock Breaking ........................................................................................ 25
7.8
Piling .......................................................................................................................... 26
8. Communication ..................................................................................... 27 8.1
Communication Overview ........................................................................................... 27
8.2
Complaints Response .................................................................................................. 28
9. Monitoring............................................................................................. 29 9.1 Page 3
Noise .......................................................................................................................... 29
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Construction Noise and Vibration Delivery Work Plan 9.2
Vibration..................................................................................................................... 30
10. Effects in Buildings ................................................................................. 32 10.1 Noise .......................................................................................................................... 32 10.2 Vibration..................................................................................................................... 33 10.3 Management of Adverse Effects .................................................................................. 34
Appendix B: Noise & Vibration Level Predictions ......................................... 35 Appendix C: Site Specific Management Plans ............................................... 39 C24 The Project (Mediaworks) SSCNVMP ............................................................................... 41 C26 8 – 12 Boston Road SSCNMP ........................................................................................... 44 C27 5 Water Street SSCNMP .................................................................................................. 46 C28 25 Enfield Street SSCNMP ............................................................................................... 48 C29 22 – 24 Normanby Road SSCNMP .................................................................................... 50 C30 26 Normanby Road SSCNVMP ......................................................................................... 52 C31 32 Normanby Road SSCNVMP ......................................................................................... 54 C32 51 – 63 Normanby Road SSCNMP .................................................................................... 56
Appendix D: Communications Records ........................................................ 58 Appendix F: Glossary of Terminology ........................................................... 67
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Construction Noise and Vibration Delivery Work Plan
1.
Introduction
The City Rail Link (CRL) project comprises the construction, operation and maintenance of a 3.4 km underground passenger railway, running between Britomart Station and the North Auckland Rail Line (NAL) in the vicinity of Mt Eden Station. The CRL also involves the construction of two new underground stations at Aotea and Karangahape and a redeveloped Mt Eden Station (refer to Figure 1-1) The design and construction of the CRL infrastructure between Aotea and Mt Eden Stations is being delivered by the Link Alliance. This Construction Noise and Vibration Delivery Work Plan (CNV DWP) has been prepared in relation to early works along and in the vicinity of Normanby Road, hereafter referred as the ‘Normanby Road early works’.
Figure 1-1: CRL Route and Location
1.1 Overview of CRL works in Mt Eden The CRL works in the Mt Eden area involve the construction of the southern section of the tunnel structures and the tie-in to the existing NAL, including the construction of the redeveloped Mt Eden Station. The Mt Eden Active Construction Zone (ACZ) and Construction Support Areas (CSA) for the NAL Mt Eden section are generally located between State Highway 1 (SH1) to the east and Dominion Road to the west. The works in this area include: • • • •
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Construction of an underground grade separation structure near Mt Eden Station; A new Mt Eden Station building incorporating passenger linkages; Modifications to the existing Mt Eden Station platforms; Road over rail bridges at Mt Eden Road, Normanby Road and Ruru Street with sections of road realignment;
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Construction Noise and Vibration Delivery Work Plan • • •
Grade separation structures and the east- and west-facing connections for the existing and new rail lines to pass-over and connect with each other; Pedestrian and cyclist bridge structures at Fenton Street and Porters Avenue; and New road linkages within the reinstated area post-construction.
Given the nature and scale of CRL works in Mt Eden, construction will be undertaken in a staged manner. This CNV DWP only relates to one component of the CRL Mt Eden works, the Normanby Road early works, as described in Section 2 below.
1.2 Purpose of the CNV DWP In accordance with CRL designation Condition 36, the purpose of this CNV DWP is to identify and provide for implementation of the Best Practicable Option (BPO) to avoid, remedy or mitigate adverse noise and vibration effects resulting from construction during the Normanby Road early works. It identifies the noise and vibration performance standards that must, where practicable, be complied with and details the management and control methodologies to be implemented in order to achieve compliance. Where compliance cannot be achieved, the CNV DWP identifies BPO mitigation measures to be implemented on a site-specific basis. This CNV DWP will be implemented throughout the entire construction period and will be the primary tool for the management of construction noise and vibration effects resulting from the Normanby Road early works. It is a ‘living document’ which may be updated as the early works progress and working conditions become clearer. This CNV DWP has been prepared by the Link Alliance and forms part of the Construction Environmental Management Plan (CEMP) for the Normanby Road early works.
1.3 Relevant Conditions Error! Reference source not found. identifies the CRL designation conditions relevant to this CNV DWP and where they are addressed in the document. Table 1-1: Conditions and location in Plan
Condition No.
Condition
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.
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Relevant section of DWP
Section 8.1
Construction Noise and Vibration Delivery Work Plan 16.2
The Requiring Authority shall undertake on-going communication and consultation with notable noise and vibration receivers throughout the duration of construction occurring in the vicinity. This communication shall be reported back to the “key contacts” (see Condition 13) and the Auckland Council Consent Monitoring officer for their review and confirmation of any further action to be undertaken. The Auckland Council Consent Monitoring Officer shall advise the Requiring Authority of its recommendation within 10 working days of receiving this information from the Requiring Authority.
31
Project Standards – Construction Noise
31.1
Construction noise shall comply with the following Project Standards (unless otherwise provided for in a SSCNMP which is approved under Condition 37, 39 or 40): Receiver Type Occupied commercial and industrial buildings (including offices) Sensitive Noise and Vibration 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) Notes: 1. 2.
Monday to Saturday 0700 – 2200
Sundays and Public Holidays 0700 – 2200
At all other times 2200 – 0700
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
Section 5.1
35 dB LAeq in sleeping areas
35 dB LAeq in sleeping areas 65 dB LAeq in outdoor playing areas
60 dB LAeq for Designation 5 and Designation 6; and 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
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
Commercial / Industrial Residential/ School Historic or sensitive structures Page 7
Section 8.1
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Short-term (transient) vibration1 PPV at the foundation at a frequency of 1-10Hz 10-50Hz 50-100Hz (mm/s) (mm/s) (mm/s)
Long-term (continuo vibration PPV at horizontal plane of highest flo (mm/s)
20
20 – 40
40 – 50
PPV at horizontal plane of highest floor (mm/s) 40
5
5 – 15
15 – 20
15
5
3
3–8
8 – 10
8
2.5
10
Section 5.1
Section 5.2
Construction Noise and Vibration Delivery Work Plan 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:
Section 5.2
Section 5.2
(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 5.2
(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 5.2
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 5.2
36
Construction Noise and Vibration DWP For the avoidance of doubt, this condition is applicable to the management of construction noise and vibration on all receivers, including sensitive and notable receivers.
36.1
A Construction Noise and Vibration DWP shall be prepared and implemented. The objective of the Construction Noise and Vibration DWP is to provide for the development and implementation of identified best practicable option to avoid, remedy or mitigate the adverse effects on receivers of noise and vibration resulting from construction.
This DWP
36.2
The Construction Noise and Vibration DWP shall:
This DWP
a)
Adopt the noise and vibration standards for construction set out in Conditions 31, 32, 33 and 34 of these designations;
b) Be generally consistent with the draft Construction Noise and Vibration management plan submitted as part of the Notice of Requirement documentation (dated 23 August 2013); and c) 36.3 Page 8
Identify methods to achieve best practicable option for mitigating adverse effects.
To achieve this objective, the Construction Noise and Vibration DWP shall include:
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Section 4
Construction Noise and Vibration Delivery Work Plan a)
The roles and responsibilities of the noise and vibration personnel in the contractor team with regard to managing and monitoring adverse noise and vibration effects;
b) That piling, and road cutting will be restricted to between the hours of 7am to 7pm, Monday to Saturday;
Section 7.2
c)
Section 6.1
Construction machinery and equipment to be used and their operating noise and vibration levels;
d) Identification of construction activities that are likely to create adverse noise and vibration effects, the location of these in the construction site areas, and the distance to comply with the Project Criteria in Conditions 31, 32, 33 and 34;
Section 6
e)
The timing of construction activities that are likely to create an adverse noise and vibration effect;
Section 6.1
f)
The location of sensitive noise and vibration receivers;
Section 3
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;
Appendix C
h) Specific measures to address the concerns raised by those sensitive receivers;
Appendix C
i)
Section 7.1
Specific training procedures for construction personnel including; I. The project noise and vibration performance standards for construction (conditions 31, 32, 33 and 34);
II. Information about noise and vibration sources within the construction area and the locations of sensitive noise and vibration receivers; and III. Construction machinery operation instructions relating to mitigating noise and vibration;
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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;
Section 7
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:
Section 9
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
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Construction Noise and Vibration Delivery Work Plan of Appendix J of the technical noise and vibration report provided as part of the Notice of Requirement should be used as a guide);
l)
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;
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 8.1
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.
Noted
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:
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.
Noted
37.4
In addition to the SSCNMPs prepared in accordance with Condition 37.2, and notwithstanding Condition 37.1, the Requiring Authority shall prepare SSCNMPs 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;
b) The timing and duration of any exceedance; c) Page 10
Details of the type of activity causing any exceedance;
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Appendix C
Construction Noise and Vibration Delivery Work Plan 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.
Noted
38.2
Further to the Construction Noise and Vibration DWP in Condition 36, a SSCVMP shall be prepared:
Appendix C
a)
Appendix C
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)
Appendix C
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.
Appendix C
38.5
SSCVMPs will identify:
Appendix C
a)
The timing and duration of any exceedance;
b) Details of the type of activity giving rise to any exceedance;
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Construction Noise and Vibration Delivery Work Plan c)
Site Specific vibration criteria that addresses the issue(s) of concern (i.e. building damage, amenity and sensitive equipment). Site Specific criteria shall be determined by a suitably qualified independent vibration expert;
d) The summary of the communication and consultation undertaken with the receiver. The summary must include a clear explanation of where any comments have not been incorporated, and the reasons why not. This information must be included in the SSCVMP provided to both the Independent Peer Review Panel and Auckland Council as part of the Outline Plan process specified in Condition 11; e)
The methods and measures to mitigate vibration effects, including but not limited to, investigating alternative low-vibration construction methods, undertaking high-vibration works outside sensitive times, vibration barriers, building condition surveys, potential to offer temporary relocation of affected receivers, or other offers made by the Requiring Authority and agreed to by the affected receiver.
f)
The reasons why the management and mitigation measures and methods reflect best practicable option.
38.6
The SSCVMP shall be submitted for the review of Auckland Council. The works shall then be undertaken in accordance with the SSCVMP confirmed by the Requiring Authority as part of the Outline Plan.
Appendix C
39
Notable Noise and Vibration Receivers
Appendix C24
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
39.2
In addition to the Construction Noise and Vibration DWP, a SSCNVMP shall be prepared for each identified Notable Receiver. The objective of the SSCNVMP is to detail the best practicable option to avoid, remedy or mitigate adverse noise and vibration effects on each Notable Receiver.
39.3
The Requiring Authority shall consult with the notable receiver throughout the duration of construction and update the SSCNVMP as required to achieve the objective in 39.2.
39.4
The SSCNVMP shall include: a)
The level at which noise and vibration effects on the notable receiver will unreasonably interfere with its operation. This will enable development of the site-specific criteria. In the case of MediaWorks this is set out in Condition 40;
b) Construction activities and equipment which are likely to create adverse noise and vibration effects and the location and timing of these in relation to the notable receiver; c)
The methods and measures associated with the worksite including, but not limited to, structural mitigation such as barriers and enclosures, use of low noise and vibration machinery and the scheduling of high noise and vibration construction;
d) The methods and measures associated with the notable receiver building or operation including, but not limited to, potential for isolation of sensitive areas and equipment, dampening of reradiating surfaces and temporary Page 12
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Construction Noise and Vibration Delivery Work Plan relocation of affected receivers that are proposed to minimise adverse noise and vibration effects on the notable receiver;
39.5
e)
Details about the methods to be adopted by the Requiring Authority to minimise construction noise and vibration effects on the notable receiver and the anticipated effectiveness of those methods;
f)
A summary of the communication and consultation undertaken with the notable receiver. The summary must include a clear explanation of where any comments have not been incorporated, and the reasons why not;
g)
Offers made by the Requiring Authority to the notable receiver to mitigate effects and the response by the operators, such as relocation, and whether those offers were accepted or not by the notable receiver;
If the parties cannot agree on any of the matters above they shall each appoint a suitably qualified and independent expert, who shall jointly appoint an independent and suitably qualified third expert who shall certify the following matters to be included in the SSCNVMP: a)
The level at which noise and vibration effects on the notable receiver unreasonably interfere with its operation (the certified noise and vibration limit);
b) The mitigation methods and measures within the worksite (at source) including, but not limited to, structural mitigation such as barriers and enclosures, use of low noise and vibration machinery and the scheduling of high noise and vibration construction; c)
The mitigation methods and measures at the notable receiver including but not limited to: isolation of sensitive areas and equipment; dampening of reradiating surfaces; any response to such offers; and temporary relocation of affected receivers;
d) Whether or not the mitigation methods and measures reflect best practicable management; and e) 39.6
Whether or not the residual effects are likely to cause significant disruption to the activities of the notable receiver.
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.
1.4 DWP Review and updates This CNV DWP is a live document that will be reviewed and updated as a result of a material change to the Normanby Road early works, or to address unforeseen adverse noise and vibration effects arising from construction, or unresolved complaints (see CRL designation Condition 22.1). Refer to Section 6.7 of the CEMP for further detail on the review and updating process.
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2.
Normanby Road Early Works 2.1 Overview of Works
The Normanby Road early works involve demolition of the building at 11 Water Street, establishment of a Construction Support Area, construction of a temporary pedestrian bridge across the NAL and two retaining walls, and diversion of temporary and permanent utilities (such as water, wastewater, stormwater, gas, electricity and communications) along and in the vicinity of Normanby Road. The early works are required in advance of the main construction works to provide adequate clearance between the CRL works and network utilities to enable construction of retaining walls, the Normanby Road grade separation bridge and the realigned Normanby Road / Boston Road / Nugent Street roundabout. The Normanby Road early works are planned to extend over eight months, between February 2020 and September 2020. Figure 2.1 shows the area of these works.
Figure 2-1: Extent of the Normanby Road early works area
Refer to the CEMP for a detailed description of the works.
2.2 Construction Methodology The Normanby Road early works will be divided into stages as described in the CEMP and the Construction Staging Plans in Appendix B of the CEMP. Page 14
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3.
Receivers and Building Types
The relevant receiver types (noise) and building types (vibration) affected by the Normanby Road early works are summarised in Figure 3.1 and Table 3.1.
Figure 3.1: Receiver and Building Types Table 3.1:Receiver and Building Types
Appendix C
Site Name
Address
Receiver Type (noise) 1
Building Type (vibration) 2
C24
The Project (Mediaworks)
71 Boston Road
Sensitive (Notable) /Commercial
Commercial
C26
8 – 12 Boston Road
8 – 12 Boston Road
Commercial
Commercial
C27
IMeasureU
5 – 7 Water Street
Retail/Commercial
Commercial
C28
25 Enfield St
25 Enfield St
Sensitive/residential
Residential
C29
22-24 Normanby Road 22 – 24 Normanby Road
Sensitive/residential
Residential
C30
Sen Vietnamese Kitchen & Bar
26 Normanby Road
Retail/Commercial
Heritage or Sensitive
C31
OfficeMax
32 Normanby Road
Retail/Commercial
Commercial/Industrial
C32
Corys Electrical and Sabato
51 - 63 Normanby Road
Retail/Commercial
Commercial/Industrial
Based on known occupancies Based on known heritage status and structural engineer preliminary recommendation (note that residential occupancy does not automatically correlate to residential structure categorisation and may be updated upon further investigation as appropriate)
1 2
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4.
Key Personnel
The key personnel responsible for this CNV DWP are identified in Table 4-1. Refer to the CEMP for further detail on roles and responsibilities. Table 4-1: Key Personnel and contact details
Role
Name
Project Manager – NAL Mt Eden Section
Glen Kirk
Construction Manager – NAL Mt Eden Section
Francois Pageron
Environmental and Sustainability Manager
Sarah Sutherland
Senior Communications and Engagement Advisor – Mt Eden
Sonya Leahy
Acoustics Specialist
Craig Fitzgerald
Noise and Vibration Monitoring Manager
TBC
Auckland Council – Team Leader Central Monitoring
Timothy O’Grady
CRL Hotline / Email Address
0800 CRL Talk (0800 275 8255) mteden@linkalliance.co.nz
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5.
Performance Standards 5.1 Noise 5.1.1. Construction Noise
The construction noise Project Standards in CRL designation Condition 31.1 are summarised in Table 5-1 below. Construction noise shall be measured and assessed in accordance with the provisions of New Zealand Standard NZS 6803:1999 “Acoustics - Construction Noise”. These noise limits apply at 1m from the most exposed façade of a receiver. If any construction activity cannot practicably comply with these limits, it must be mitigated as far as practicable using the measures outlined in this CNV DWP, including by way of a Site-Specific Construction Noise Management Plan (SSCNMP). Table 5-1: CRL Designation Condition 31.1 - Construction Noise Limits relating to CRL Designation 2500-6
Receiver Type
Monday to Saturday
Sundays and Public Holidays
At all other times
0700 – 2200
0700 – 2200
2200 – 0700
industrial
75 dB LAeq
75 dB LAeq
75 dB LAeq
Sensitive Noise and Vibration Receivers (excluding offices)
75 dB LAeq
60 dB LAeq
60 dB LAeq
90 dB LAFmax
75 dB LAFmax
75 dB LAFmax
Occupied commercial and buildings (including offices)
Early Childhood Education Centres (whilst 35 dB LAeq in sleeping areas occupied during normal opening hours) Bear Park Early Childhood Education Centre 35 dB LAeq in sleeping areas at 32 Akiraho Street (whilst occupied during 65 dB LAeq in outdoor playing areas normal opening hours)
5.1.2. Site Specific Construction Noise Management Plans (SSCNMP) Any predicted or measured noise exceedance from construction 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 9.1 of this CNV DWP). 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 the Project Noise Standards in designation Condition 31.1. SSCNMPs shall identify the matters outlined in designation Condition 37 (Section 1.3, summarised as follows: •
The relevant activity, timing, duration and predicted magnitude of exceedance (Section 6.1);
•
A summary of communication and consultation undertaken with the receiver (Appendix D);
•
The specific methods or measures employed to mitigate the noise effects (Section 7).
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| Normanby Road Early Works
Construction Noise and Vibration Delivery Work Plan A site-specific plan may address both construction noise and vibration, in which case it would be a SSCNVMP. Site specific management plans for particular receivers are included in Appendix C.
5.2 Vibration 5.2.1. Cosmetic Building Damage The cosmetic building damage Project Standards in CRL designation Condition 33.1 are summarised in Table 5-2. Construction vibration shall be measured and assessed in accordance with German Standard DIN 4150-3:1999. If any construction activity cannot practicably comply with these limits, it must be mitigated as far as practicable using the measures outlined in this CNV DWP, including by way of a Site-Specific Construction Noise Management Plan (SSCNMP). Table 5-2: Project Construction Vibration Limits (Building Damage)
Type of Structure
Short-term (transient) vibration 3
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
Historic or Structures
3
3–8
8 – 10
8
2.5
Sensitive
5.2.2. Amenity The daytime vibration amenity Project Standards are contained in CRL designation Condition 34.2. The following limits (Peak Particle Velocity (PPV)) apply in response to a complaint from a building occupant: •
1mm/s as measured on the floor of the receiving room for residentially occupied habitable rooms between 0700 and 2200 hrs; and
•
2mm/s as measured on the floor of the receiving room for retail and office spaces (including work areas and meeting rooms) between 0700 and 2200 hrs.
5.2.3. Site Specific Construction Vibration Management Plans (SSCVMP) The objective of a SSCVMP is to detail the best practicable option(s) to avoid, remedy or mitigate adverse effects on a receiver resulting from construction vibration that does not comply with the Project Vibration Standards in designation Conditions 33 or 34, or in response to other concerns or complaints in accordance with designation Condition 17.1(c). SSCVMPs shall identify the matters outlined in designation Condition 38 (Section 1.3), summarised as follows: 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. Page 18 | Normanby Road Early Works 3
Construction Noise and Vibration Delivery Work Plan •
The relevant activity, timing, duration and predicted magnitude of exceedance (Section 6.2)
•
A summary of communication and consultation undertaken with the receiver (Appendix D)
Site specific vibration criteria, methods or measures that addresses the issue(s) of concern (i.e. building damage, amenity or sensitive equipment). A site-specific plan may address both construction noise and vibration, in which case it would be a SSCNVMP. Site specific management plans for the Normanby Road early works are included in Appendix C. •
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Construction Noise and Vibration Delivery Work Plan
6.
Predicted Levels 6.1 Noise
Indicative unmitigated sound levels for the proposed equipment for the Normanby Road early works are presented in Table 6-1 at various receiver setback distances. It will be used by the Project Manager (or nominated person) prior to construction to inform what equipment will require mitigation and/or management and when. This table will be kept up to date by the Acoustic Specialist when new information becomes apparent through noise monitoring (Section 9.1) or other means. Table 6-1 Indicative unmitigated noise levels for proposed equipment
Equipment
Sound Power
Faรงade Noise Level (dB LAeq)
Limit Setback (m)
(dB LwA)
10m
20m
50m
100m
75 dB LAeq
Large rock breaker 4 (20-30T)
121
96
90
81
73
83
Concrete cutting
115
90
84
75
67
48
Small concrete/rock breaker (1-5T)
111
86
80
71
63
33
Plate compactor
108
83
77
68
60
25
Hydrovac excavation
107
82
76
67
59
22
Bored piling (45T)
106
81
75
66
58
20
Concrete truck and pump
103
78
72
63
63
14
Excavator (20T)
103
78
72
63
63
14
Static roller
103
78
72
63
55
14
Excavator (5T)
102
77
71
62
62
13
Mobile Crane
98
73
67
58
58
8
Generator (150kVA)
93
68
62
53
53
4
Pump (150mm dia)
93
68
62
53
53
4
Compressor
93
68
62
53
53
4
The work sites will be screened by mobile noise barriers (Section 7.5) where practicable. The barriers are effective at mitigating the noise levels received by passing pedestrians and occupants of ground floor levels in buildings (including via open shop doors). However, they provide little benefit for the upper floor levels of immediately adjacent buildings overlooking the works and barriers. Effective noise barriers typically reduce the received noise levels in Table 6-1 by 10 decibels where they block line-of-sight from source to receiver, reducing the setbacks in in Table 6-1 by 2/3 (e.g. 30m without screening vs 10m with screening). Activities are predicted to generally comply, provided they are undertaken in a manner consistent with the measures in Section 7 of this CNV DWP. Noise modelling figures are included in Appendix B
4
Breaking solid rock, breaking fractured rock may be up to 10-15 decibels quieter
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| Normanby Road Early Works
Construction Noise and Vibration Delivery Work Plan for selected activities. These represent the highest noise levels from a series of representative activity positions to provide a reasonable ‘worst-case’ envelope. In summary: •
Concrete cutting: Concrete saws will be required to cut the pavement and road surface where relocation of utilities is required. Concrete cutting work will occur during daytime hours. Activity specific mitigation and management measures for concrete cutting activities are included in Section 7.6.
•
Bored piling: Piling is required for the foundations of the proposed utilities bridge over the NAL rail corridor. Piling will occur during daytime hours, with pre-fabricated bridge components lifted into place by a crane during scheduled ‘Block of Line’ night works in the NAL rail corridor. Activity specific mitigation and management measures for bored piling activities are included in Section 7.8.
•
Rock breaking: An excavator mounted breaker will be used for concrete and rock breaking for utilities diversion and the breaking of existing concrete slabs in the car park. Rock breaking will occur during daytime hours. Activity specific mitigation and management measures for rock breaking activities are included in Section 7.7.
Demolition: Demolition of building will primarily be carried out using a large excavator with a pulveriser or shear attachment, crane, and hand tools. Isolated night works (2200 – 0700 hrs) are required for the Normanby Road early works. Where necessary, noisy activities will be prioritised early in the evening or night-time period where practicable to avoid sleep disturbance. Note that people tend to be less disturbed by low frequency, continuous engine noise, than intermittent noise or activities with special audible character (e.g. reversing beepers, whistling, banging tailgates or shouting). For each construction period, night works are summarised as follows: •
•
March – April 2020: The Mt Eden Corrections Facility tie into sewer is required to be undertaken at night over a 3-hour period (second night contingency). Preparation works will be undertaken during the day, but the tie in must be done at night. This involves primarily hand tools down inside a screened trench. While this activity is relatively quiet, the tie in requires a concrete saw to operate for approximately 10 minutes to enable the physical connection to the existing sewer.
•
March – April 2020: Install stormwater lines along the driveway of 32 Normanby Road. This is programmed over one night (second night contingency) for safety and minimise disruption to 32 Normanby Road occupants. The works would commence after 5pm (once car park is empty) and largely excavated prior to 10pm using excavators and a hydrovac if required. After 10pm, the pipes will be laid, trench back-filled and fill compacted with a plate compactor. The edge seam compaction (noisy part of compaction) will be timed during the daytime period.
July 2020: Lift temporary bridge span into place using a 250t mobile crane over one night (second night contingency). This activity must be undertaken during a block of line period for safety reasons. Site specific plans are included in Appendix C for the following properties identified in Section 3:
•
•
8, 10–12 and 71 Boston Road
•
5-7 Water Street
•
22-24, 26, 32, 51 - 63 Normanby Road
•
25 Enfield Street
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Construction Noise and Vibration Delivery Work Plan
6.2 Vibration Table 6-2 provides indicative construction vibration levels for proposed activities that have the potential to result in vibration in building structures. It will be used by the Project Manager (or nominated person) prior to construction to inform what equipment will require mitigation and/or management and when. This table will be kept up to date by the Acoustic Specialist when new information becomes apparent through vibration monitoring (Section 9.2) or other means. Table 6-2 Indicative vibration set back distances from typical equipment
Vibration Source
Cosmetic Building Damage Vibration Risk Radius (m) Heritage buildings Residential buildings Commercial buildings 2.5 mm/s PPV 5mm/s PPV 10 mm/s PPV
Large rock breaker (20-30T)
16
10
7
Large plate compactor (200-450kg)
10
6
3
Hand-held or small concrete/rock breaker (1-5T) 5
4
4
2
The activities in Table 6-2 are generally predicted to comply with the cosmetic damage limits (Section 5.2.1) but may be perceptible at times near the site perimeter. Activity specific mitigation and management measures for rock and concrete breaking activities are included in Section 7.7 of this CNV DWP. To address residual risk, pre-construction building condition surveys will be offered in accordance with designation Condition 46. Accordingly, a site-specific plan is included in Appendix C31 for 32 Normanby Road.
6.3 The Project (Mediaworks) Designation Condition 16 states that a SSCNVMP must be prepared for any notable receivers within 100 metres of the designation footprint. Accordingly, an SSCNVMP for ‘The Project’ (Mediaworks) recording studio at 71 Boston Road is included in Appendix C24. However, construction activities are not predicted to exceed noise and vibration limits. Despite this, the first occurrence of these activities will be timed outside ‘Sensitive Times’ for broadcasting and monitoring will be undertaken.
Assumes sawcut used to be provide structural discontinuity prior to breaking in accordance with method in Section 7.7 Page 22 | Normanby Road Early Works 5
Construction Noise and Vibration Delivery Work Plan
7.
Mitigation and management 7.1 Training
All staff will participate in an induction training session when they commence the Normanby Road early works. 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
•
Construction noise and vibration limits
•
Information about noise and vibration sources on-site
•
Noise and vibration mitigation and management procedures
•
The sensitivity of receivers to noise and vibration (including MediaWorks), and any operational requirements and constraints identified through communication and consultation
• Complaints management procedures Awareness of current noise and vibration matters on, or near active worksites, will be addressed during site meetings and/or ‘toolbox’ training sessions.
7.2 Construction Hours Activity
Days
Times
Condition: Comment
General hours
Monday to Saturday: Sunday: All other times (night)
0700 – 1900 hrs 1900 – 2200 hrs 0700 – 2200 hrs 2200 – 0700 hrs
31: Prioritise. 31: Minimise where practicable. 31: Minimise where practicable. 31: Avoid where practicable.
The Project (MediaWorks) Sensitive Times
Monday to Friday
1600 – 20:00 hrs
Refer SSCNVMP in Appendix C24
Piling and road cutting
Monday to Saturday
0700 – 1900 hrs
36.3 b): Restricted period.
7.3 Mechanical Plant Selection Some activities have the potential to exceed the Project Standards for construction noise and vibration at close receiver distances. It is essential that appropriate mitigation and management measures are identified and employed in advance of the works to avoid exceedances. When selecting construction equipment: •
Equipment will be suitably sized for the proposed task
•
Equipment will be well maintained
•
Exhaust silencers will be fitted
•
Fit or upgrade engine covers in consultation with equipment manufacturer where appropriate
•
Substitute diesel engines with electric motors where practicable
7.4 General Mitigation Measures Best Practical Option (BPO) mitigation will be implemented throughout the construction programme to avoid exceedances. This will include, but not be limited to the following:
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| Normanby Road Early Works
Construction Noise and Vibration Delivery Work Plan •
Keep the construction time near noise sensitive areas to a minimum
•
Avoid unnecessary noise, such as shouting, the use of horns, loud site radios, rough handling of material and equipment, and banging or shaking excavator buckets
•
Avoid metal on metal contact where practicable by minimising drop height of materials, such as during loading and unloading of trucks
•
Tonal reversing alarms shall be prohibited on site. Suitable alternatives may include flashing lights, broadband audible alarms or reversing cameras inside vehicles
•
Mitigate track squeal from tracked equipment, such as excavators and piling rigs. This may include tensioning and watering or lubricating the tracks regularly
•
Avoid high engine revs where practicable through appropriate equipment selection and turn engines off when idle / parked
•
Avoid steep internal haul routes and keep the road surface smooth and well maintained
•
Maximise the distance between the noise source and the nearest sensitive receiver by positioning fixed plant away from sensitive receivers, or orienting machinery to maximise the distance between the engine exhaust and the nearest sensitive building façade where practicable (e.g. bored piling rig, excavators and mobile cranes)
•
Crane and secure loads using straps in preference to chains where safe and practicable;
•
Utilise power from the national grid in preference to generators where practicable
•
Utilise noise barriers and enclosures where effective (Section 7.5)
•
Implement further measures identified through communication and consultation with sensitive receivers (Section 8)
•
Undertake noise and vibration monitoring to confirm compliance or identify high noise and/or vibration machinery (Section 9)
7.5 Noise Barriers and Enclosures Site boundary fences will be constructed, or existing fences upgraded, to provide effective noise mitigation during construction. Temporary noise barriers will be used where a construction noise limit is predicted to be exceeded (Section 6.1) and the barriers would noticeably reduce the construction noise level. Noise barriers will be installed prior to works commencing and be maintained throughout the works. Effective noise barriers typically reduce the received noise level by 10 decibels. Where practicable, the following guidelines will be incorporated in the design and utilisation of noise barriers: •
The panels will be constructed from materials with a minimum surface mass of 6.5 kg/m2, including the following proprietary ‘noise curtains’: Duraflex ‘Noise Control Barrier - Premium Series’ (www.duraflex.co.nz) Soundex ‘Acoustic Curtain - Performance Series' (www.ultimate-solutions.co.nz) Flexshield ‘Sonic Curtain with 4 kg/m2 mass loaded vinyl backing’ (www.flexshield.co.nz) Alternatives will be approved by a suitably qualified acoustic specialist because some proprietary noise curtains have insufficient surface mass for general use
•
The panels will be a minimum height of 2m, and higher if practicable to block line-of-sight;
•
The panels will be abutted or overlapped to provide a continuous screen without gaps at the bottom or sides of the panels;
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Construction Noise and Vibration Delivery Work Plan •
The panels will be positioned as close as practicable to the noisy construction activity to block line-of-sight between the activity and noise sensitive receivers; and
Where positioned on the site boundary, additional local barriers will be considered near the activity to ensure effective mitigation for sensitive receivers on upper floor levels. Noise enclosures surround the sound source with noise barriers on more than one side and include a ‘roof’. The effectiveness of noise enclosures depends on the extent that the source can be enclosed without constraining the operation of the equipment and resulting in an unacceptable occupational health and safety environment (e.g. noise exposure, heat, dust, poor lighting etc). Enclosures can also result in traffic management issues and increase construction duration for short term or transient activities.
•
The following guidelines will be incorporated in the design and utilisation of noise enclosures where practicable and effective: •
Enclosures will be used for stationary plant where a noise barrier is not sufficient to achieve compliance with the noise limits and it is practicable to do so (e.g. fixed paver cutting stations, pumps, concrete crushing plant, spoil handling conveying equipment etc).
•
The enclosure can be erected using the noise curtains listed above, or alternatively, the following proprietary cutting station ‘noise enclosures’ can be used: −
Echo Barrier ‘Cutting Station’ (www.supplyforce.co.nz)
−
Soundex ‘E6/2 Quick-Tech Cutting Enclosure' (www.ultimate-solutions.co.nz)
−
Hushtec ‘Acoustic Tent’ (www.duraflex.co.nz)
•
Alternatively, a suitably qualified and experienced acoustic specialist (such as MASNZ) will be involved in the custom design of the enclosure (an example is included as Figure B.3 in NZS 6803:1999).
•
An onsite assessment should be undertaken at potential enclosure locations as to whether an enclosure is able to be installed safely.
7.6 Concrete and Paver Cutting Where practicable: •
Use noise barriers for concrete cutting and a noise enclosure for paver cutting stations (Section 7.5)
•
Minimise the concrete cutting period, and, the number of cutting periods (e.g. complete all cutting in one extended period rather than two shorter periods with the same overall duration)
•
Select blades that are sharp, maximise the number of teeth, minimise the blade width, minimise gullet depth, and have built in vibration damping slots
•
Use a unit fitted with a blade shroud and operate with a water supply
7.7 Concrete and Rock Breaking Avoid MediaWorks broadcast ‘Sensitive Times’ for breaking within 100m of The Project building at 71 Boston Road, unless monitoring verifies compliance with the limits in designation Condition 35.2 (Appendix C24. Other general measures include the following where practicable: • Page 25
Use local noise barriers to screen the breaker tip (Section 7.5) | Normanby Road Early Works
Construction Noise and Vibration Delivery Work Plan •
For concrete breaking near buildings, an initial perimeter saw cut will be made at the perimeter to reduce vibration transfer
•
For rock breaking, initial breaking will be undertaken at the perimeter of the rock face closest to neighbouring buildings. This will enable monitoring of the highest vibration levels received at nearby buildings for compliance purposes (Section 9.2). It will also mitigate the vibration transfer from subsequent breaking by creating a ‘trench’ of fractured rock between the breaker and nearby buildings.
•
Minimise the volume of breaking (e.g. use a crushing shear or pulveriser attachment in place of a breaker, or use a cut and lift approach to enable breaking in the centre of site)
•
Minimise the duration of breaking, and the number of breaking periods (e.g. complete all breaking in one extended period rather than two shorter periods with the same overall duration)
•
Match the size of breaker to the scale of the works (i.e. large enough to undertake the works efficiently, but avoiding oversized units)
•
Match the chisel/tip type to the material and use a dampened bit to avoid ringing; and
•
Avoid ‘blank’ firing by engaging the material before commencing and stopping before it fires through the material.
7.8 Piling Where practicable: •
Prioritise piling methods that minimise noise and vibration (e.g. augured, screw or press-in piles over impact driven or vibratory piling methods)
•
Minimise alternating rotation of the bored piling auger to loosen spoil into the muck bin. Shaking the ‘kelly bit’ connection creates very loud banging that can result in noise complaints. It is understood this action can be avoided for general auger use but is necessary specifically when a coring barrel is used to drill through obstructions (due to Health and Safety issues related to alternative ways of loosening material from the bit).
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Construction Noise and Vibration Delivery Work Plan
8.
Communication 8.1 Communication Overview
Communication with the Normanby Road early works stakeholders in relation to construction noise and vibration impacts is described in Section 6.2 of the early works Communication and Consultation Plan (CCP). A summary of Community Liaison Group (CLG) and Independent Peer Review (IPR) feedback relevant to this CNV DWP will be maintained in Appendix D. As a minimum, the following communication shall be undertaken: •
Written notification of the early work description will be provided to all property occupiers within 100m of a worksite to raise awareness of the CRL project, the required construction works and the duration in their vicinity. This will be undertaken at least 20 working days prior to the commencement of works on site.
•
The Link Alliance’s Senior Communications and Engagement Advisor for Mt Eden will provide monthly updates of monitoring and early work progress to affected parties.
•
The Senior Communications and Engagement Advisor will advise any affected parties of construction activities that are predicted or have been identified by the Acoustics Specialist to exceed the limits in Section 5 following the application of BPO mitigation identified in Section 7.
•
The Senior Communications and Engagement Advisor shall undertake communications with MediaWorks for The Project site at 71 Boston Road in accordance with designation Condition 16, unless agreed in their SSCNVMP in Appendix C24.
•
The Senior Communications and Engagement Advisor shall address any concerns and complaints regarding construction noise and vibration in accordance with Section 8.2. When discussing vibration concerns, it is important to convey that vibration can be felt at levels far below those that pose even the smallest risk of building damage.
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Construction Noise and Vibration Delivery Work Plan
8.2 Complaints Response The contact name and phone number of the Senior Communications and Engagement Advisor (Section 0), to which complaints can be directed, shall be clearly included in any written notification and onsite 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:
•
Page 28
−
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 (Section 5); and
−
The Mt Eden Stakeholder and Communications Manager shall liaise with affected parties (Section 10.3).
| Normanby Road Early Works
Construction Noise and Vibration Delivery Work Plan
9.
Monitoring 9.1 Noise
Construction noise shall be measured and assessed: •
During the first occurrence of concrete cutting, concrete breaking, bored piling, rock breaking, and other activities that are predicted to exceed the Project Standards for construction noise (Section 5.1) and in response to a noise complaint (Section 8.2)
•
At 1m from the most affected building façade, or proxy position and adjusted for distance and façade reflections where appropriate
•
By a suitably qualified and experienced specialist (e.g. Member of the Acoustical Society of New Zealand) in accordance with the requirements of New Zealand Standard NZS 6803: 1999 “Acoustics - Construction Noise”
•
For a representative duration, reported with the measured level (e.g. 65 dB LAeq (30min))
• The monitoring results shall be used to update Section 6.1 of this CNV DWP as appropriate. A flow chart showing the process for attended noise monitoring is provided in Figure 9-1. Noise monitoring (Section 9.1): • •
During the first use of high noise equipment (Section 6.1) In response to a reasonable complaint (Section 8.2) or to verify an exceedance
Comply with noise limits? (Section 5.1)
Yes
No
Response to a previous noncompliant measurement?
No
Review mitigation and management strategies to ensure BPO (Section 7)
Limits practicably achieved?
Yes
Qualify for SSCVMP? Yes
Yes Prepare SSCNMP (Appendix C) Submit findings to Project Manager
Figure 9-1 Noise Monitoring Flow Chart
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| Normanby Road Early Works
Revise construction methodology
No No
Construction Noise and Vibration Delivery Work Plan
9.2 Vibration Construction vibration levels shall be measured and assessed: •
During the first occurrence of concrete breaking and rock breaking and in response to a vibration complaint (Section 8.2)
•
At the closest building foundations and/or the top floor level as appropriate where consent to access the building of interest has been requested and granted, or proxy position and adjusted for distance where appropriate
•
By a suitably qualified and experienced specialist (e.g. Member of the Acoustical Society of New Zealand) in accordance the requirements of German Standard DIN 4150-3:1999 “Structural vibration – Part 3: Effects of vibration on structures”
•
For a representative construction duration, generally measured in 1 – 2 second intervals
• The monitoring results shall be used to update Section 6.2 as appropriate. A flow chart showing the process for attended vibration monitoring is provided in Figure 9-2. The following procedures will be implemented where measured construction vibration exceeds the Project standards in condition 33: •
The activity giving rise to the exceedance will cease as soon as safe and practicable to do so;
•
Determine if the receiver qualifies for a SSCVMP (Section 5.2.3);
•
A detailed building condition survey will be undertaken; and
•
The Senior Communications and Engagement Advisor will liaise with the building owner throughout this process.
If damage has not occurred, then that construction activity can continue provided the measured vibration level is not exceeded further. If damage has occurred, then alternative construction methods will be investigated, subject to implementation of the best practicable option (BPO), and the Requiring Authority shall commit to repairing the damage within a reasonable timeframe after the construction phase ceases.
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Construction Noise and Vibration Delivery Work Plan Cosmetic Building Damage
Vibration monitoring (Section 9.2): • •
During the first use of high vibration equipment (Section 6.2) In response to a reasonable complaint (Section 8.2) or to verify an exceedance
Notify Project Manager, cease the activity, engage a structural engineer and undertake a building condition survey
Yes
Comply with cosmetic building damage limits? (Section 5.2.1)
Amenity
Yes
Response to a previous noncompliant measurement? Yes
Engage heritage expert
No Building damage?
Yes
No
Yes
Comply with the amenity limits? (Section 5.2.2)
No
No
Heritage building?
Damage type? Structural Seek advice from structural expert before continuing
No
| Normanby Road Early Works
Revise construction methodology
No Qualify for SSCVMP? Yes
Submit findings to Project Manager
Page 31
Yes
Limits practicably achieved?
Prepare SSCVMP (Appendix C)
Figure 9-2 Vibration Monitoring Flow Chart
Cosmetic
Review mitigation and management strategies to ensure BPO (Section 7)
No
Construction Noise and Vibration Delivery Work Plan
10. Effects in Buildings 10.1 Noise The noise level received inside, for example, an office or living room, will depend on the sound insulation performance of the façade (particularly the glazing) and room constants (such as the room dimensions and surface finishes). These factors can vary widely. The Construction Noise Standard (NZS 6803) recommends noise limits assessed at 1m from the external façade of a building, assuming a sound level difference of 20 decibels to sensitive receiving environments inside. For the purpose of estimating actual noise effects on a room by room basis, the predicted façade sound insulation performance of buildings can be generally categorised by the type of glazing / ventilation provision as follows: •
Sealed glazing
30 decibels sound level difference
•
Closed windows (openable)
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. ‘Noise effects matrices’ are presented in Table 10-1 and Table 10-2. They enable estimation of the construction noise level received inside, based on the external noise level and façade glazing type. The noise effects matrices are indicative only, as detailed assessment requires measurement of the actual façade performance on a space by space basis. The noise effects are categorised generally using colour coding To use the matrices, follow this three-step process: •
Measure the external noise level at 1m from the façade, or estimate it from the information provided in Section 6.1 of this CNV DWP
•
Determine the category of façade glazing sound insulation performance from the guidance above or measured on-site façade sound level difference for a specific receiver location
•
Use the relevant lookup table to estimate the received internal noise level and associated typical effects that may be experienced using Table 10-1 and Table 10-2.
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Construction Noise and Vibration Delivery Work Plan Table 10-1: Daytime noise levels in commercial & industrial buildings and habitable rooms in dwellings External Noise Level (dB LAeq)
Estimated Internal Noise Level (dB LAeq) Sealed glazing (30 dB)
Closed windows (25 dB)
Open windows (15 dB)
85
55
60
70
80
50
55
65
75
45
50
60
70
40
45
55
(Appendix B)
•
< 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
Table 10-2: Night-time noise levels in bedrooms of dwellings External Noise Level (dB LAeq)
Estimated Internal Noise Level (dB LAeq) Sealed glazing (30 dB)
Closed windows (25 dB)
Open windows (15 dB)
65
35
40
50
60
30
35
45
55
25
30
40
50
20
25
35
(Appendix B)
•
< 35 dB LAeq
Typically acceptable
•
35 – 40 dB LAeq
Annoyance and sleep disturbance for some noise sensitive receivers
•
> 40 dB LAeq
Annoyance and sleep disturbance for most noise sensitive receivers
10.2 Vibration While the primary vibration concern is typically cosmetic building damage (Section 5.2.1), people may be disturbed at levels which are significantly lower (Section 5.2.2). Potentially affected parties will be informed about the vibration levels they may experience and assured vibration damage can only occur at magnitudes well above the threshold of perception (Section 8.1). British Standard BS 5228-2:2009 “Code of practice for noise and vibration control on construction and open sites – Part 2: Vibration” provides the following guidance on the amenity effects of vibration: •
0.14mm/s PPV
Just perceptible in the particularly sensitive environments
•
0.3 mm/s PPV
Just perceptible in normal residential environments
•
1 mm/s PPV
Typically acceptable with prior notification
• 10 mm/s PPV Likely to be intolerable for any more than a very brief period In some cases, construction vibration can excite building structures. This is heard as ‘reradiated noise’ rather than felt as vibration within the building but is the result of a structural transmission path. Predictions of reradiated noise levels are complex and site specific. Where necessary, a suitability Page 33
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Construction Noise and Vibration Delivery Work Plan qualified acoustic specialist will be engaged to provide guidance. Reradiated noise effects can be estimated using the guidance in Section 10.1.
10.3 Management of Adverse Effects The following process will be implemented for any construction activity that is found to exceed the relevant construction noise and vibration Project Standards: •
Review the construction methodology, mitigation and management strategies to ensure they represent the BPO.
•
The Senior Communications and Engagement Advisor – Mt Eden (or representative) will consult with affected parties to understand their sensitivities, including times, activities and locations. Consultation will focus on a collaborative approach to managing the adverse effects from construction noise and vibration while works are undertaken in the vicinity.
•
The Senior Communications and Engagement Advisor (or representative) will be available 24/7 during works periods. A record of consultation will be included in the relevant SSCNMP (Appendix C) or otherwise in Appendix D as appropriate.
•
Implement measures to avoid significant adverse effects as agreed with the affected party and monitor the activity to verify the extent of any adverse effects.
•
Temporary relocation will be considered for sensitive receivers where all practicable noise and vibration management and mitigation measures have been implemented and significant adverse noise effects and vibration are predicted. This will be in exceptional cases only, and advice from the Acoustic Specialist will be sought prior.
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Construction Noise and Vibration Delivery Work Plan
Appendix B: Noise & Vibration Level Predictions B1
Concrete Cutting & Rock Breaking (Daytime)
Rock breaking
Bored piling
Concrete cutting
Figure B-1 Faรงade noise map from Concrete Cutting, Bored Piling & Rock Breaking (facing north east)
Rock breaking Bored piling
Concrete cutting
Figure B-2 Faรงade noise map from Concrete Cutting, Bored Piling & Rock Breaking (facing south west) Page 35
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Construction Noise and Vibration Delivery Work Plan
Rock breaking
Bored piling
Concrete cutting
Figure B-3 Faรงade noise map from Concrete Cutting, Bored Piling & Rock Breaking (plan)
B2
Night works
Crane Excavator
Figure B-4 Faรงade noise map from Bored Piling at night (facing north east)
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Construction Noise and Vibration Delivery Work Plan
Crane
Excavator
Figure B-5 Faรงade noise map from Bored Piling at night (facing south west)
Crane
Excavator
Figure B-6 Faรงade noise map from Bored Piling at night (plan)
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B3
Vibration contours
Figure B-7 Vibration contours for plate compaction outside 22 Normanby Rd
Figure B-8 Vibration contours for plate compaction outside 32 Normanby Rd and Water Street
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Construction Noise and Vibration Delivery Work Plan
Appendix C: Site Specific Management Plans The triggers for a Site Specific Management Plan (e.g. SSCNVMP) are set out in CNV DWP Sections 5.1.2 and 5.2.3 for noise and vibration respectively. The objective of a SSCNVMP is to detail the best practicable option(s) to avoid, remedy or mitigate adverse effects on a receiver resulting from construction noise and/or vibration that does not comply with Project Noise and/or Vibration Standards. Conditions 37.5 and 38.5 lists matters that each SSCNVMP must identify. Table C below provides a summary of the components and identifies where the necessary information is located, either in the CNV DWP or individual SSCNVMP. For example, activity specific BPO measures are implemented at source (rather than at the receiver). Therefore, these are contained with the CNV DWP, rather than reproduced in each SSCNVMP. This avoids repetition and ensures that where best practice measures are updated in the CNV DWP, they are automatically applied to all SSCNVMPs as well. Each SSCNVMP includes a summary of the consultation, particularly sensitive activities or times, agreed mitigation or management measures, and preferred method of engagement going forward. Table C: SSCNVMP components
Conditions 37.5 and/or 38.5
Relevant Section of DWP and/or SSCNVMP
a) The extent of the exceedance
CNV DWP Section 6 identifies predicted noise and/or vibration exceedances using the modelling outputs in Appendix B. It identifies the need for an SSCNVMP in this Appendix. Each SSCNVMP summarises the engagement regarding the predicted exceedances.
b) The timing and duration of the exceedance
CNV DWP Section 2.2 refers to the project staging described in the Construction Environmental Management Plan (CEMP) to avoid potential conflict in parallel living documents. CNV DWP Section 7.2 sets out timing, with normal construction hours between 7am – 7pm, Monday to Saturday. CNV DWP Section 8.1 sets out the communication requirements for any exceedances. This addressed further in d) below. Each SSCNVMP summarises the consultation regarding general programme and the relevant activities addressed in a) above.
c) The activity causing the exceedance
Identified in a) above.
d) Communication and consultation with the receiver
CNV DWP Section 8.1 sets out the communication requirements. It refers to the Communication and Consultation Plan (CCP) to avoid potential conflict in parallel living documents. It specifically requires general monthly updates and communication of timeframes for works with the potential to exceed the relevant limits. The monthly “works update” emails generally include information about upcoming activities, location, timeframes, hours of works, anticipated effects, associated mitigation measures and contact details. Supplementary targeted communications are more specific. Each SSCNVMP summarises the consultation with the receiver. In most cases, advanced communication of for works with the potential to exceed the relevant Standards is an acceptable means of managing effects. In more specific cases, they include specific times to avoid or prioritise.
e) The methods and measures to Page 39
The CNV DWP sets out the BPO measures, including the mitigation and management measures in Section 7, the engagement in Section 8 and monitoring in Section 9.
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Construction Noise and Vibration Delivery Work Plan mitigate noise and/or vibration effects
Each SSCNVMP refers to the relevant measures in Section 7 and summarises the consultation with the receiver. In more specific cases, they include specific criteria that addresses an identified issue of concern (e.g. sensitive equipment).
f) The reasons why Detailed by addressing a) through e) above. the management and mitigation measures and methods reflect BPO
The following site-specific plans are included in this appendix: •
C24 The Project (Mediaworks) (SSCNVMP)
•
C26 8 – 12 Boston Road (SSCNMP)
•
C27 5 – 7 Water Street (SSCNMP)
•
C28 25 Enfield St (SSCNMP)
•
C29 22 – 24 Normanby Road (SSCNMP)
•
C30 26 Normanby Road (SSCNMP)
•
C31 32 Normanby Road (SSCNVMP)
•
C32 51 – 63 Normanby Road (SSCNMP)
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C24 The Project (Mediaworks) SSCNVMP C24.1 Introduction This Site-Specific Construction Noise and Vibration Management Plan (SSCNVMP) is for The Project building at 71 Boston Road. It is required to satisfy CRL Conditions 16 and 39 because the building is considered to be a “notable noise and vibration receiver”. As Appendix C24 of the Construction Noise and Vibration Delivery Work Plan (CNV DWP), this SSCNVMP 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 SSCNVMP is to detail the best practicable option(s) to avoid, remedy or mitigate the identified adverse effects on MediaWorks. It contains, or references: •
Details of those responsible for implementing this SSCNVMP (CNV DWP Section 0)
•
MediaWorks noise and vibration sensitive spaces (Section C24.2)
•
Predicted construction noise levels (Section C24.3)
•
Mitigation and management measures (CNV DWP Section 7)
•
Communication protocol (CNV DWP Section 8)
•
SSCNMP review process (CRL condition 39.6)
This SSCNVMP has been prepared for the Link Alliance and forms part of the Construction Environmental Management Plan (CEMP) for the Project.
C24.2 Project Standards The relevant Construction Noise Project Standards are summarised in Table C24.2.1. Table C24.2.1: Construction Noise
Condition
Requirement
Limit
Assessment location (period)
31.1
General 6
75 dB LAeq
External façade (all times)
The relevant Construction Vibration Project Standards are summarised in Table C24.2.2. Table C24.2.2: Construction Vibration
Condition
Requirement
Limit
Assessment location 7 (period)
33.1
Building Damage 8
Refer DWP Section 5.2.1
Building foundations or Top floor
34.2 (b)
Amenity
2 mm/s PPV
Floor of retail and office areas (including work areas and meeting rooms).
Measured and assessed in accordance with the provisions of New Zealand Standard NZS 6803:1999 “Acoustics Construction Noise” 7 These are the measurement locations where required by the Standard. For monitoring, proxy locations can be used with established transfer functions (refer condition 40.9) 8 Measured and assessed in accordance with the provisions of German Standard DIN 4150-3:1999 “Structural vibration – Part 3: Effects of vibration on structures” Page 41 | Normanby Road Early Works 6
Construction Noise and Vibration Delivery Work Plan The above Project Standards apply to typical office/retail buildings. The studio at 71 Boston Road was not identified during consenting and is not reflected in the consent conditions relating to other MediaWorks studios. However, it is recognised that, as the building is being used as a television studio, it is more sensitive to internal noise and vibration than a typical office building. Therefore, the following internal criteria were determined during the CRL C6 works and included in the SSCNVMP for that project. Table C24.2.3: Construction Noise – The Project Studio
Condition
Requirement
Limit
Assessment location (period)
39.4
Internal noise for filming
40 dB LAeq
Inside The Project studio (16:00-21:00)
The relevant Construction Vibration Project Standards are summarised in Table C24.2.2. Table C24.2.4: Construction Vibration – The Project Studio
Condition
Requirement
Maximum vibration level in RMS velocity (mm/s) between 8 and 80Hz 9
Assessment location (period)
39.4
Vibration for filming
0.20 mm/s (approximately 1mm/s PPV)
On the floor of The Project studio (16:00-21:00)
34.2 (b)
Amenity
2 mm/s PPV
Floor of retail and office areas (including work areas and meeting rooms).
C24.3 Engagement Consultation was undertaken with MediaWorks for existing studio spaces prior to the C6 works. Following this a site visit of the building at 71 Boston Road on 3 May 2018. Notes from that visit include: •
The site features a series of connected buildings. A loading dock and double level lightweight building used primarily by office space front Boston Road (plus several edit suites and meeting rooms on the top floor). “The Project” TV studio, control room and voice over room are in a connected masonry building at the north end of the site, away from Boston Road.
•
The offices are used during normal office hours, but extended to 8pm, Monday to Friday
•
Pre-recorded segments filmed in the TV studio from 4 to 7pm, Monday to Friday
•
Live show recorded in the TV studio from 7pm to 8pm, Monday to Friday
•
The primary effect on the building currently relates to reradiated noise from vibration. The studio space is located on the concrete slab (on grade) with a direct laid flooring layer (plywood or similar). There is no specific isolation between the ground and studio floor finish.
Auckland Unitary Plan E25.6.30 (2) vibration from permanently installed stationary machinery measured in sensitive spaces Page 42 | Normanby Road Early Works 9
Construction Noise and Vibration Delivery Work Plan •
In addition to regular communication, specific consultation should be undertaken should the Standards in C24.2 be exceeded. The consultation process is set out in Section 8 of the CNV DWP. In general, management of any exceedance may include avoiding the activity during sensitive times (i.e. between 4pm and 9pm weekdays).
C24.4 Predicted Construction Noise & Vibration Levels Noise & vibration levels at 71 Boston Road as a result of works on the Normanby Road worksite are not predicted to exceed limits.
C24.5 Contingency Measures Where any of the noise and vibration standards in C24.2 for The Project Studio are exceeded, and where the noise and/or vibration levels are unacceptable to MediaWorks, the following corrective action measures shall apply: •
Cease the work giving rise to the exceedance as soon as safe and practicable to do so
•
Review the construction methodology, mitigation and management strategies to ensure they represent the BPO and reduce the noise or vibration levels.
•
Monitor to determine compliance once the remediation works are complete
•
Ensure that the work responsible for the exceedance is not recommenced during Sensitive Times
C24.6 Review Process If site representatives request consultation in the future, this SSCNVMP will be updated in accordance with CRL Conditions 37.5 and 38.5, with consideration given to the following: •
The extent to which noise may exceed the Project Standards
•
The timing and duration of any exceedance
•
The type of activity causing any exceedance
•
A summary of the communication and consultation with the receiver
•
The methods and measures to mitigate effects
•
A statement of why they reflect best practicable option
Communications records are contained in the communication and consultation plan (CCP). This SSCNVMP will be updated to summarise engagement and any agreed site-specific measures.
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C26 8 – 12 Boston Road SSCNMP C26.1 Introduction This Site-Specific Construction Noise Management Plan (SSCNMP) is for commercial buildings located at 8 – 12 Boston Road. A SSCNMP is required because construction is predicted to exceed the Project Standards in CRL Conditions 31. This SSCNMP has been prepared in accordance with CRL Conditions 37 and is Appendix C26 of the CRL Normanby Road 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 8 – 12 Boston Road. This SSCNMP has been prepared for the Link Alliance and forms part of the Construction Environmental Management Plan (CEMP) for the Project.
C26.2 Engagement Link Alliance representatives Sonya Leahy, Hilary Konigkramer and Craig Fitzgerald met with Dale De Penning and Steve Morris (representatives for Aspec Construction and the building’s owners – 8-10 Boston Road), Mark Hall (MSH Architects), Guy Whately and Biddy Dunlop (Saturday – 8 Boston Road) and Camilo (Float Culture – 12 Boston Road) on 10 October 2019, and Michael (RGIS – 12 Boston Road) on 14 October 2019. The matters discussed included: •
An overview of the Normanby Road early works.
•
General programme, sewer trenching in their car park fronting Water Street, and the wider Normanby Road early work activities.
•
Overview of the CNV DWP and this SSCNMP, communications triggers and protocol.
It is noted that Mr Kuznetsov (Float Culture) was not available, but previously raised concerns about noise and vibration as part of the CRL Contract 6 construction works (stormwater main realignment – in particular, piling activity associated with these works). His business provides sensory deprivation experiences for clients using water tanks located in water tanks within the building basement, and away from the exposed external façade of the building. For this reason, it is predicted that vibration is the primary concern. They take bookings from 8am - 10pm most days and are usually busiest on Saturdays. While the Figures in Appendix B don’t show any predicted exceedances, the south and east façades are predicted to be exposed to noise levels between 75 – 80 dB LAeq during sewer trenching in their rear carpark over a series of days in May 2020. Due the proximity of these trenching works, the resulting noise levels are predicted to briefly exceed the 75 dB LAeq noise limit. Activity specific mitigation and management measures are included in Section 7 of the CNV DWP and not repeated here (e.g. Section 7.4 general mitigation measures). The buildings at 8 – 12 Boston Road are commercial buildings constructed from a mix of masonry and timber framed walls with sealed glazing. The estimated sound level difference across the façade with the windows and doors closed is 30 decibels. The predicted construction noise effects from Table 10-1 in Section 10.1 are predicted to be typically acceptable, but with the potential for short term disturbance for the trenching works in their car park. Other more distant works are not predicted to impact activities on this site. Physical receiver mitigation, such as temporary relocation of affected receivers, alternative Page 44
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Construction Noise and Vibration Delivery Work Plan ventilation and façade sound insulation improvements, have been considered, but are not required as part of the BPO for the Normanby Road early works. All agreed that prior communication of timeframes for works with the potential to exceed the relevant noise limits was an acceptable means of managing effects. No further activity specific consultation is necessary over and above regular communication (Section 8).
C26.3 Review Process If any site representatives or affected site representative’s requests consultation in the future, this SSCNMP will be updated in accordance with CRL Conditions 37.5, with consideration given to the following: •
The extent to which noise may exceed the Project Standards
•
The timing and duration of any exceedance
•
The type of activity causing any exceedance
•
A summary of the communication and consultation with the receiver
•
The methods and measures to mitigate effects
•
A statement of why they reflect best practicable option
Communications records are contained in the communication and consultation plan (CCP). This SSCNMP will be updated to summarise engagement and any agreed site-specific measures.
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C27 5 Water Street SSCNMP C27.1 Introduction This Site-Specific Construction Noise Management Plan (SSCNMP) is for the commercial building located at 5 Water Street. A SSCNMP is required because construction is predicted to exceed the Project Noise Standards in CRL Condition 31. This SSCNMP has been prepared in accordance with CRL Condition 37 and is Appendix C27 of the CRL Normanby Road 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 5 Water Street. This draft SSCNMP has been prepared by Marshall Day Acoustics and forms part of the Construction Environmental Management Plan (CEMP) for the Project.
C27.2 Engagement Link Alliance representatives Sonya Leahy, Hilary Konigkramer and Craig Fitzgerald (Marshall Day Acoustics) met with Rhys Williams (I Measure U) on 10 October 2019. The matters discussed included: •
An overview of the Normanby Road early works.
•
General work programme.
•
Overview of the CNV DWP and this SSCNMP, communications triggers and protocol.
The site is used for commercial purposes, with the large open plan office space for I Measure U in a converted warehouse above basement car parking. Mr Williams key concern was vibration due to camera equipment used on-site. It was explained that the adjacent low-rise buildings would be dismantled to minimise vibration, but the concrete foundations may need to be broken up which may be perceptible. The CNV DWP has specific measures to minimise vibration. Of interest to Mr Williams was that this activity would be short in duration and advanced communication would be provided with timing of breaking works. The south and east façades are predicted to be exposed noise levels exceeding the 75 dB LAeq noise limit from the demolition of 11 Water Street in February 2020, and the sewer trenching works adjacent to 5 Water Street in May 2020. Activity specific mitigation and management measures are included in Section 7 of the CNV DWP and not repeated here (e.g. Section 7.4 general mitigation measures). The building at 5 Water Street is a double level industrial building with blockwork façade, small sealed windows, but steel pitched roof with no internal ceiling. The estimated sound level difference across the façade with the windows and doors closed is 20 – 25 decibels. The predicted construction noise effects from Table 10-1 in Section 10.1 are predicted to be typically acceptable, but with the potential for some isolated disturbance during adjacent sewer connection works. Physical receiver mitigation, such as temporary relocation of affected receivers, alternative ventilation and façade sound insulation improvements, have been considered, but are not required as part of the BPO for the Normanby Road early works. Mr Williams agreed that prior communication of timeframes for works with the potential to exceed the relevant noise limits was an acceptable means of managing effects. No further Page 46
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Construction Noise and Vibration Delivery Work Plan activity specific consultation is necessary over and above regular communication (refer Section 8).
C27.3 Review Process If Mr Williams or other I Measure U representatives request consultation in the future, this SSCNMP will be updated in accordance with CRL Condition 37.5, with consideration given to the following: •
The extent to which noise may exceed the Project Noise Standards
•
The timing and duration of any exceedance
•
The type of activity causing any exceedance
•
A summary of the communication and consultation with the receiver
•
The methods and measures to mitigate noise effects
•
A statement of why they reflect best practicable option
Communications records are contained in the communication and consultation plan (CCP). This SSCNMP will be updated to summarise engagement and any agreed site-specific measures.
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C28 25 Enfield Street SSCNMP C28.1 Introduction This Site-Specific Construction Noise Management Plan (SSCNMP) is for the residential building located at 25 Enfield Street. A SSCNMP is required because construction is predicted to exceed the Project Standards in CRL Conditions 31. This SSCNMP has been prepared in accordance with CRL Conditions 37 and is Appendix C28 of the CRL Normanby Road 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 25 Enfield Street. This SSCNMP has been prepared for the Link Alliance and forms part of the Construction Environmental Management Plan (CEMP) for the Project.
C28.2 Engagement Link Alliance representatives Sonya Leahy, Hilary Konigkramer and Craig Fitzgerald met with Carlos Chung (Director and Body Corporate Manger) on 10 October 2019. The matters discussed included: •
An overview of the Normanby Road early works.
•
General programme, utility diversion works in Normanby Road, and specifically night works to lift the bridge into place over the NAL.
•
Overview of the CNV DWP and this SSCNMP, communications triggers and protocol.
The modern multi-level apartment building features basement car parking beneath four levels of apartments with balconies on all sides. There are 96 apartments in total. While the Figures in Appendix B generally don’t show any predicted exceedances, the north and east façades are predicted to be exposed to noise levels close to the 60 dB LAeq night-time noise limit. There is potential marginal exceedance of 61 dB LAeq on one small section of the façade. This relates to back fill of a stormwater trench in the driveway of 32 Normanby Road, programmed over a single night (section 6.1). This is considered to be acceptable with prior communication. As such, this SSNCMP is more precaution than requirement and is setup to ensure good effective communication with residents in advance of any potential noise complaints. Activity specific mitigation and management measures are included in Section 7 of the CNV DWP and not repeated here (e.g. Section 7.4 general mitigation measures). The façade is primarily steel and concrete with large areas of sealed glazing. The estimated sound level difference across the façade with the windows and doors closed is 30 decibels. The predicted construction noise effects from Table 10-1 in Section 10.1 are predicted to be acceptable. Physical receiver mitigation, such as temporary relocation of affected receivers, alternative ventilation and façade sound insulation improvements, have been considered, but are not required as part of the BPO for the Normanby Road early works. Mr Chung agreed that prior communication of timeframes for works with the potential to exceed the relevant noise limits was an acceptable means of managing effects. No further activity specific consultation is necessary over and above regular communication (Section 8).
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C28.3 Review Process If Mr Chung or affected site representatives request consultation in the future, this SSCNMP will be updated in accordance with CRL Conditions 37.5, with consideration given to the following: •
The extent to which noise may exceed the Project Standards
•
The timing and duration of any exceedance
•
The type of activity causing any exceedance
•
A summary of the communication and consultation with the receiver
•
The methods and measures to mitigate effects
•
A statement of why they reflect best practicable option
Communications records are contained in the communication and consultation plan (CCP). This SSCNMP will be updated to summarise engagement and any agreed site-specific measures.
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C29 22 – 24 Normanby Road SSCNMP C29.1 Introduction This Site-Specific Construction Noise Management Plan (SSCNMP) is for the residential building located at 22/24 Normanby Road. A SSCNMP is required because construction is predicted to exceed the Project Noise Standards in CRL Condition 31. This SSCNMP has been prepared in accordance with CRL Condition 37 and is Appendix C29 of the CRL Normanby Road 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 22/24 Normanby Road. This SSCNMP has been prepared for the Link Alliance and forms part of the Construction Environmental Management Plan (CEMP) for the Project.
C29.2 Engagement In the absence of contact details, Link Alliance representative Sonya Leahy spoke to Sharron O’Sullivan (Normanby Mews Body Corporate Manger) on 17 October 2019. Unfortunately, Ms O’Sullivan was not interested in discussing the project, it’s effects or how to effectively engage with the Normanby Mews owners and occupiers. The apartments at 24 Normanby Road have linear weatherboard façades with operable glazing and a steel pitched roof. The estimated sound level difference across the façade with the windows and doors closed is 30 decibels. Figure B.5 in Appendix B of the CNV DWP shows that the south façade is predicted to be exposed to noise levels between 75 – 80 dB LAeq during the closest rock breaking activities, exceeding the 75 dB LAeq noise limit. Activity specific mitigation and management measures are included in Section 7 of the CNV DWP and not repeated here (e.g. Section 7.7 concrete and rock breaking). The predicted daytime construction noise effects from Table 10-1 in Section 10.1 are predicted to be typically acceptable, but with the potential for short term disturbance for the utilities works locally in Normanby Road. In addition, night-time exceedances are predicted while back filling a stormwater trench in the driveway of 32 Normanby Road, programmed over a single night (section 6.1). The northern façade may be exposed to up to 69 dB LAeq, 10 decibels above the night-time noise limit of 60 dB LAeq. The exceedance only relates to the eastern extent of this trench, during the tie in on Normanby Road. Effective screening (Section 7.5) will further mitigate received noise levels. The predicted night-time construction noise effects from Table 10-2 in Section 10.1 are annoyance and potentially sleep disturbance for some noise sensitive receivers. Any exceedance would be brief and is considered to be acceptable with prior communication and where mitigated with the use of effective noise barriers (Section 7.5). Physical receiver mitigation, such as temporary relocation of affected receivers, alternative ventilation and façade sound insulation improvements, have been considered, but are not required as part of the BPO for the Normanby Road early works due to the short duration of night works. Consultation engagement has not been successful to date. Prior communication of timeframes for works with the potential to exceed the relevant noise limits will be provided where practicable (Section 8). Page 50
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C29.3 Review Process If the property representatives request consultation in the future, this SSCNMP will be updated in accordance with CRL Condition 37.5, with consideration given to the following: •
The extent to which noise may exceed the Project Noise Standards
•
The timing and duration of any exceedance
•
The type of activity causing any exceedance
•
A summary of the communication and consultation with the receiver
•
The methods and measures to mitigate noise effects
•
A statement of why they reflect best practicable option
Communications records are contained in the communication and consultation plan (CCP). This SSCNMP will be updated to summarise engagement and any agreed site-specific measures.
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C30 26 Normanby Road SSCNVMP C30.1 Introduction This Site-Specific Construction Noise and Vibration Management Plan (SSCNVMP) is for the commercial building located at 26 Normanby Road. A SSCNVMP is required because construction is predicted to exceed the Project Standards in CRL Conditions 31 and 33 This SSCNVMP has been prepared in accordance with CRL Condition 37 and is Appendix C30 of the CRL Normanby Road 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 SSCNVMP is to detail the best practicable option(s) to avoid, remedy or mitigate the identified adverse effects from noise and vibration exceedances at 26 Normanby Road. This SSCNVMP has been prepared for the Link Alliance and forms part of the Construction Environmental Management Plan (CEMP) for the Project.
C30.2 Engagement Link Alliance representatives Hilary Konigkramer and Craig Fitzgerald met with Bo (Owner of Sen Restaurant) on 10 October 2019. The matters discussed included: •
An overview of the Normanby Road early works.
•
General programme and utilities trenching works in Normanby Road.
•
Overview of the CNV DWP and this SSCNVMP, communications triggers and protocol.
The building is a double level industrial building that has been converted into a restaurant called Sen Vietnamese Kitchen & Bar. The restaurant is open Monday to Saturday, 10am – 3pm and 5pm – 10pm. Figure B.2 in Appendix B shows that the east and south façades are predicted to be exposed to noise levels between 75 – 85 dB LAeq during the closest utilities works, exceeding the 75 dB LAeq noise limit. Activity specific mitigation and management measures are included in Section 7 of the CNV DWP and not repeated here (e.g. Section 7.4 general mitigation measures). The masonry building has a small number of small windows and a flat steel roof over timber sarking. The estimated sound level difference across the façade with the windows and doors closed is 25 – 30 decibels. The predicted construction noise effects from Table 10-1 in Section 10.1 are predicted to be typically acceptable, but with the potential for short term disturbance for the utilities works locally in Normanby Road. Other more distant works are not predicted to impact activities on this site. Physical receiver mitigation, such as temporary relocation of affected receivers, alternative ventilation and façade sound insulation improvements, have been considered, but are not required as part of the BPO for the Normanby Road early works. Preliminary compaction vibration level predictions (Section 6.2) identify that there is potential to exceed the Heritage cosmetic building damage thresholds at the South eastern end of the building. Cosmetic building damage effects are deemed ‘minor damage’ in the DIN Standard (Section 5.2), such as cracking in paint or plasterwork, and can generally be easily repaired. A pre-construction building condition survey in accordance with condition 46 will ensure any damage is identified for remediation.
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Mr Bo agreed that prior communication of timeframes for works with the potential to exceed the relevant noise/vibration limits was an acceptable means of managing effects. No further
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Construction Noise and Vibration Delivery Work Plan activity specific consultation is necessary over and above regular communication (Section 8).
C30.3 Review Process If Mr Bo requests consultation in the future, As required under CRL Condition 37.5and 38.5, with consideration given to the following: •
The extent to which noise and/or vibration may exceed the Project Standards
•
The timing and duration of any exceedance
•
The type of activity causing any exceedance
•
A summary of the communication and consultation with the receiver
•
The methods and measures to mitigate effects
•
A statement of why they reflect best practicable option
Communications records are contained in the communication and consultation plan (CCP). This SSCNVMP will be updated to summarise engagement and any agreed site-specific measures.
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Construction Noise and Vibration Delivery Work Plan
C31 32 Normanby Road SSCNVMP C31.1 Introduction This Site-Specific Construction Noise and Vibration Management Plan (SSCNVMP) is for the commercial building located at 32 Normanby Road. A SSCNVMP is required because construction is predicted to exceed the Project Standards in CRL Conditions 31 and 33. This SSCNVMP has been prepared in accordance with CRL Condition 37 and is Appendix C31 of the CRL Normanby Road 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 SSCNVMP is to detail the best practicable option(s) to avoid, remedy or mitigate the identified adverse effects from noise and vibration exceedances at 32 Normanby Road. This SSCNVMP has been prepared for the Link Alliance and forms part of the Construction Environmental Management Plan (CEMP) for the Project.
C31.2 Engagement Link Alliance representatives Sonya Leahy, Hilary Konigkramer, Maree Drury, Hilary Konigkramer, Aidan Kirkby-McLeod, Phil Young, Jack Wan and Craig Fitzgerald met with building representatives Ryan Kennedy and Daniel Scott (Tramco), Rachel Beer and Tom Morton (Morton Property), and representatives of tenants OfficeMax, AHS Security and Active Electrical on 17 October 2019. The matters discussed included: •
An overview of the Normanby Road early works.
•
General programme and utilities trenching works in Normanby Road over a six-month period, and specifically within the site car park over a two-month period (approximately).
•
Overview of the CNV DWP and this SSCNVMP, communications triggers and protocol.
The buildings are single level commercial retail/office spaces with associated industrial warehousing. The buildings are generally occupied during business hours, Monday to Saturday. Opportunity to utilise evening window until 10pm to minimise effects on operations (primarily traffic). The primary noise and vibration effects relate to the close proximity works at the site entrance in relation to the OfficeMax building. Figure B.2 in Appendix B shows that the north façade is predicted to be exposed to noise levels between 75 – 85 dB LAeq during the closest concrete cutting activities, exceeding the 75 dB LAeq noise limit. In addition, trenching works close to the other tenants’ buildings would be undertaken over 2-3 days, resulting in short-term disruption. Activity specific mitigation and management measures are included in Section 7 of the CNV DWP and not repeated here (e.g. Section 7.7 concrete and rock breaking). The OfficeMax building features an extensive sealed glazing façade. The estimated sound level difference across the façade with the windows and doors closed is 30 decibels. The predicted construction noise effects from Table 10.1 in Section 10.1 are predicted to be typically acceptable, but with the potential for short term disturbance for the utilities trenching works immediately adjacent to the OfficeMax building. Physical receiver mitigation, such as temporary relocation of affected receivers, alternative ventilation and façade sound insulation improvements, have been considered, but are not required as part of the BPO for the Normanby Road early works.
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Construction Noise and Vibration Delivery Work Plan Preliminary compaction vibration level predictions (Section 6.2) identify that there is potential to exceed the commercial cosmetic building damage thresholds at the eastern end of the OfficeMax building. Cosmetic building damage effects are deemed ‘minor damage’ in the DIN Standard (Section 5.2), such as cracking in paint or plasterwork, and can generally be easily repaired. A pre-construction building condition survey in accordance with condition 46 will ensure any damage is identified for remediation. Site representatives agreed that prior communication of timeframes for works with the potential to exceed the relevant noise limits was an acceptable means of managing effects. No further activity specific consultation is necessary over and above regular communication (Section 8).
C31.3 Review Process If site representatives request consultation in the future, this SSCNVMP will be updated in accordance with CRL Conditions 37.5 and 38.5, with consideration given to the following: •
The extent to which noise may exceed the Project Standards
•
The timing and duration of any exceedance
•
The type of activity causing any exceedance
•
A summary of the communication and consultation with the receiver
•
The methods and measures to mitigate effects
•
A statement of why they reflect best practicable option
Communications records are contained in the communication and consultation plan (CCP). This SSCNVMP will be updated to summarise engagement and any agreed site-specific measures.
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Construction Noise and Vibration Delivery Work Plan
C32 51 – 63 Normanby Road SSCNMP C32.1 Introduction This Site-Specific Construction Noise Management Plan (SSCNMP) is for the commercial buildings located at 51 – 63 Normanby Road. A SSCNMP is required because construction is predicted to exceed the Project Noise Standards in CRL Condition 31. This SSCNMP has been prepared in accordance with CRL Condition 37 and is Appendix C32 of the CRL Mt Eden Enabling 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 57 Normanby Road. This SSCNMP has been prepared for the Link Alliance and forms part of the Construction Environmental Management Plan (CEMP) for the Project.
C32.2 Engagement Link Alliance representatives Sonya Leahy, Hilary Konigkramer, Aidan Kirkby-McLeod, Phil Young Jack Wan and Craig Fitzgerald met with building representatives Farquhar Somerville and Mischa Gildenhuys (Dilworth Trust Board), Ian Brown (Corys), Aaron King (Big Colour) and John Robertson (Sabato) on 10 October 2019. Representatives from Wok’n Noodle were invited but did not attend. The matters discussed included: •
An overview of the Normanby Road early works.
•
General programme and utilities trenching works in Normanby Road.
•
Overview of the CNV DWP and this SSCNMP, communications triggers and protocol.
The building is a double level industrial building that has been converted into a restaurant called Sen Vietnamese Kitchen & Bar. The restaurant is open Monday to Saturday, 10am – 3pm and 5pm – 10pm. Figure B.1 in Appendix B shows that the south façade is predicted to be exposed to noise levels between 75 – 80 dB LAeq during the closest rock breaking activities, exceeding the 75 dB LAeq noise limit. Activity specific mitigation and management measures are included in Section 7 of the CNV DWP and not repeated here (e.g. Section 7.7 concrete and rock breaking). The buildings at 51 – 63 Normanby Road are commercial buildings with extensive sealed glazing façade. The estimated sound level difference across the façade with the windows and doors closed is 30 decibels. The predicted construction noise effects from Table 10.1 in Section 10.1 are predicted to be typically acceptable, but with the potential for short term disturbance for the utilities works locally in Normanby Road. Other more distant works are not predicted to impact activities on this site. Physical receiver mitigation, such as temporary relocation of affected receivers, alternative ventilation and façade sound insulation improvements, have been considered, but are not required as part of the BPO for the Normanby Road early works. Site representatives agreed that prior communication of timeframes for works with the potential to exceed the relevant noise limits was an acceptable means of managing effects. No further activity specific consultation is necessary over and above regular communication (Section 8).
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Construction Noise and Vibration Delivery Work Plan
C32.3 Review Process If site representatives request consultation in the future, this SSCNMP will be updated in accordance with CRL Condition 37.5, with consideration given to the following: •
The extent to which noise may exceed the Project Noise Standards
•
The timing and duration of any exceedance
•
The type of activity causing any exceedance
•
A summary of the communication and consultation with the receiver
•
The methods and measures to mitigate noise effects
•
A statement of why they reflect best practicable option
Communications records are contained in the communication and consultation plan (CCP). This SSCNMP will be updated to summarise engagement and any agreed site-specific measures.
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Construction Noise and Vibration Delivery Work Plan
Appendix D: Communications Records Communications records are contained in the communication and consultation plan (CCP). Community and Business Liaison Group (CLG) comments on this CNV DWP are recorded in Table D-1, the Independent peer review comments are recorded in Table D-2, and comments from Auckland Council are included in Table D-3.
D.1 CLG Comments Table D-1: CLG review comments
Date
CLG Member
Comment
Response Craig Fitzgerald (MDA)
25/11/2019
Patrick (resident on Interested about noise and Not relevant to this DWP, but provided the north side of vibration from the C3 Mt Eden general overview of the C3 Mt Eden works, New North) enabling works. including demolition, blasting, tunnelling and night works.
25/11/2019
Mike, Juliana and Interested about noise and Caleb (11 Fenton vibration from the C3 Mt Eden St, Station R Fenton St works. Apartments)
Not relevant to this DWP, but provided general overview of the C3 Mt Eden works, including rock breaking, blasting, precondition survey and night works.
D.2 Independent peer review Comments Table D-2: Independent peer review comments
DWP Section
Comment
Response
Agile Independent Peer Review – Dated 20 December 2019 Appendix C (Conditions 37.5.e 37.5.f 38.5.e 37.5.f)
Specific mitigation measures are generally not listed out in the SSCNVMPs aside from time of day works are expected to occur, noting that exceedances will be limited in duration, and that communication was an acceptable means of managing effects. We believe there are better practicable options which should be explored first before relying on occupants of affected buildings to prepare for exceedances. Specific mitigation measures should be mentioned as well as the expected results of mitigation (e.g. noise barrier around equipment X giving reduction in level of Y dB to property Z)
Each SSCNVMP identifies the activities that trigger the need for the SSCNVMP. However, activity specific BPO measures are implemented at source (rather than at the receiver). Therefore, activity specific BPO measures are generic and contained in Section 7 of the DWP (rather than reproduced in each SSCNVMP). For example, rock breaking activity specific measures are detailed in Section 7.7. To avoid repetition, we have referenced the relevant sub section. This approach ensures that were best practice measures are updated in the CNVMP, they are automatically applied to all SSCNVMPs as well. Each SSCNVMP also includes a summary of the consultation, particularly sensitive activities or times, agreed mitigation or management measures. This part is typically specific to the receiver and detailed accordingly.
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Construction Noise and Vibration Delivery Work Plan Appendix C (Conditions 37.5.b 38.5.a)
Lengths of specific exceedances have not been outlined. These should be included for the receivers noted in the SSCNVMP. We understand that MDA are of the view that the works are not of such a scale and intensity (e.g. at night) that management of effects primarily via communications is understood to be acceptable to the recipients. We have concerns that without some attempt to quantify the duration of the exceedance in either % of total Stage length, days per week or hours per day or other means, it is very difficult for a recipient to understand the level of noise impact they are agreeing to deal with. It is not sufficient to note the stage length to respond to Condition 37.5b unless that is to indicate it will be above the Project criteria for the entire Stage. If that were to be the case, additional mitigation Communication with tenants should also be made regarding the duration of exceedance if not done so already measures are surely appropriate.
Appendix B
Nominal orientation of noise barrier near 32A Normanby Road seems to be positioned to direct noise towards the property (closest property) as opposed to shielding the property. This can be seen in Figure 1.
The staging and communications are detailed in supporting DWPs. The Construction Environmental Management Plan (CEMP) includes the staging information. Section 2 is most relevant to get an overview of staging, timing and duration (see sections 2.2 – 2.4 at a minimum). A summary of this was taken out of all DWP’s to avoid repetition and potential conflict in parallel living documents. Instead Section 2.1 of this DWP refers to the CEMP for staging etc. The general programme and staging of the works in the CEMP was generally presented at each of the enabling works engagement sessions, prior to discussing the CNV DWP and SSCNVMP specifically. Communications: The Communication and Consultation Plan (CCP) captures the engagement principals in Section 7 (see 7.2.2 at a minimum). Weekly or fortnightly “works update” are currently emailed to all stakeholders. They inform the community about what is happening, where, timelines, anticipated effects and associated mitigation measures. They also include hours of work and contact details. In addition, there are targeted communications. This has been updated along with the labelling which was incorrect. No change to SSCNVMP discussion was required.
Figure 1: Noise barriers near 32A Normanby Road, with the circled barrier appearing to be orientated incorrectly Appendix C (Condition 38.3)
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For buildings requiring a SSCVMP, a clear indication of the building type and/or use should be included (i.e. heritage, residential, or commercial) to determine the correct vibration limits. These currently have not been included.
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These are identified in Table 3.1
Construction Noise and Vibration Delivery Work Plan Appendix C26
Noise
8-12 Boston Road Exceedances of the 75 dB LAeq limit expected, but no specific mitigation measures listed aside (Various) from “prior communication of timeframes for works…was an acceptable means of managing effects”
Specific mitigation has been discussed already (point 1 of this IPR).
Mitigation measures should be taken to bring down the noise levels (37.5.e and 37.5.f) Vibration The vibration contours indicated that the property will exceed the commercial limits, but no SSCVMP mitigation has been listed. This should be addressed, especially as Mr. Kuznetsov of Float Culture indicated that vibration was a major concern. (38.3)
Other
The vibration contours identify that the southeast corner of the building at 8-12 Boston Road (occupied by Aspec Construction) has the potential to be within the commercial building setbacks. Plate compaction is required in a trench on this site, however the exact location is not confirmed. The setbacks are conservatively based on the edge of the works area. The need for a pre condition survey will be reviewed once the exact location of the trench is known. Regardless, prior engagement with building occupants and appropriate timing of works is identified in the SSCNVMP (including Float culture).
The properties mentioned within this section seem to be mislabelled. Although the property appears to share a structure with 8-12 Boston Road, the businesses listed are located on 12 Water Street
We have included a clarification to the properties identified.
Appendix C27
Noise
5-7 Water Street
Exceedances of the 75 dB LAeq limit expected, but the specific level expected at the façade is not given. No specific mitigation measures are listed aside from “prior communication of timeframes for works…was an acceptable means of managing effects”
Specific mitigation has been discussed already (point 1 of this IPR).
(I Measure U)
Mitigation measures should be taken to bring down the noise levels (37.5.e and 37.5.f) Vibration Vibration was noted as the key concern for the property operator. The mitigation measures mention that the CNV DWP contains specific measures but does not list out which of these measures are intended to be used.
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The SSCNVMP did discuss work methods and management measures (dismantling of building and advanced notification) that would be used to minimise vibration effects.
Construction Noise and Vibration Delivery Work Plan Appendix C28
Noise
25 Enfield Street
The updated night time noise contours indicate that noise levels are expected to reach up to 65 dB LAeq, which will exceed the 60 dB LAeq limit. Appropriate mitigation measures need to be specifically listed.
(Residential building)
We have updated the SSCNMP for the night-time exceedance.
(37.2) Appendix C2*
Noise
22-24 Normanby Road
Daytime exceedances of the 75 dB LAeq limit expected, but no specific mitigation measures are listed. Mitigation measures should be taken to bring down the noise levels, especially if property manager is into interested in communicating.
(Normanby Meows)
Specific mitigation has been discussed already (point 1 of this IPR). We have updated the SSCNMP for the night-time exceedance.
(37.5.e and 37.5.f) Night time noise maps also suggest that the northern side of the property will be exposed to up to 70 dB LAeq , which exceeds the 60 dB LAeq limit. This can be seen in Figure 2. This exceedance has not been mentioned in the SSCNVMP. (37.2)
Figure 2: Area shown to be exposed to up to 70 dB LAeq These are nighttime noise maps Appendix C30 26 Normanby Road (Sen Restaurant)
Noise
Updated the SSCNVMP with exceedance up Noise levels estimated at the façade given in the to 85 dB LAeq. SSCNVMP suggest 75-80 dB LAeq, but the noise Specific mitigation has been discussed maps show that the levels will reach up to 85 dB already (point 1 of this IPR). LAeq. No specific mitigation measures are listed aside from “prior communication of timeframes for works…was an acceptable means of managing effects” Mitigation measures should be taken to lower the noise levels (37.5.e and 37.5.f) Vibration SSCNVP notes that “Cosmetic building damage effects are deemed ‘minor damage’ in the DIN
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The word ‘cosmetic’ is often included to inform the type and scale of the potential building damage. This avoids confusion with
Construction Noise and Vibration Delivery Work Plan Standard (Section 5.2), such as cracking in paint or plasterwork, and can generally be easily repaired”. This does not represent accurately the meaning of the DIN 4150-3 Standard which refers to “minor damage” and at no point mentions “cosmetic damage”. The standard also defines partitions becoming detached from loadbearing walls or floors as “minor damage”, which does not seem consistent with the use of “cosmetic”.
the potential for structural building damage and occupant safety concerns.
By comparison, British Standard BS52282:2009 has higher (more permissive) comparable building damage thresholds. The tabled criteria in part B.2 of BS5228 is titled “Transient vibration guide values for cosmetic damage”. In part B.3.1 it provides guidance on the effects: “In some circumstances, however, it is possible for Notwithstanding the above, Condition 38.4 only the vibrations to be sufficiently intense to permits works to exceed the building damage promote minor damage. Typically this limits “for a building, structure or infrastructure damage could be described as cosmetic and that has been assessed by a suitably qualified would amount to the initiation or extension and experienced structural engineer”. No such of cracks in plasterwork, etc., rather than assessment is provided and needs to be for any the onset of structural distress. In more site where there is an expectation of breaching severe cases, falls of plaster or loose roof the building damage limits – regardless of tiles or chimney pots can occur”. whether MDA deem the effect to be minor, The Din Standard example provided relates cosmetic or otherwise. to damage to non-load bearing partitions, consistent with a cosmetic effect.
Notwithstanding, a pre-construction building survey will be undertaken for this building by a suitably qualified person prior to the relevant works commencing. Appendix C31
Noise
32 Normanby Road
Noise levels estimated at the façade given in the SSCNVMP suggest 75-80 dB LAeq, but the noise maps show that the levels will reach above 90 dB LAeq. No specific mitigation measures are listed aside from “prior communication of timeframes for works…was an acceptable means of managing effects” Mitigation measures should be taken to lower the noise levels (37.5.e and 37.5.f)
(Various)
Night time noise levels are expected to reach up to 80 dB LAeq based on the noise maps, exceeding the 75 dB LAeq limit for an occupied building. This is not mentioned, and mitigation has not been listed. This should be included or confirmation that the building will not be occupied during the works (and therefore the condition does not apply).
The noise contour map has been updated and indicates that the façades may reach up to 85 dB LAeq. This is inline with what was given in the SSCNVMP. However, this SSCNVMP incorrectly referred to closest rock breaking activities rather than concrete cutting. Specific mitigation has been discussed already (point 1 of this IPR).
32 Normanby is a commercial building.
(37.2) Vibration SSCNVP notes that “Cosmetic building damage effects are deemed ‘minor damage’ in the DIN Standard (Section 5.2), such as cracking in paint or plasterwork, and can generally be easily repaired”. This does not represent accurately the meaning of the DIN 4150-3 Page 62
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A pre-construction building survey will be undertaken for this building by a suitably qualified person prior to the relevant works commencing. Other comments are addressed in response to comments regarding 26 Normanby Road above.
Construction Noise and Vibration Delivery Work Plan Standard which refers to “minor damage” and at no point mentions “cosmetic damage”. The standard also defines partitions becoming detached from loadbearing walls or floors as “minor damage”, which does not seem consistent with the use of “cosmetic”. Notwithstanding the above, Condition 38.4 only permits works to exceed the building damage limits “for a building, structure or infrastructure that has been assessed by a suitably qualified and experienced structural engineer”. No such assessment is provided and needs to be for any site where there is an expectation of breaching the building damage limits – regardless of whether MDA deem the effect to be minor, cosmetic or otherwise. Appendix C32
Noise
51-63 Normanby Road
Exceedances of the 75 dB LAeq limit expected, but no specific
(Various)
mitigation measures listed aside from “prior communication of timeframes for works…was an acceptable means of managing effects”
Specific mitigation has been discussed already (point 1 of this IPR).
Mitigation measures should be taken to bring down the noise levels (37.5.e and 37.5.f)
D.3 Auckland Council Table D-3: Council peer review comments
DWP Section
Comment
Response
First draft review for early works outline plan, received 6 December 2020 7.5
Section 7.5 of the draft DWP refers to barriers and enclosures and states that “The effectiveness of noise enclosures depends on the extent that the source can be enclosed without constraining the operation of the equipment and resulting in an unacceptable occupational health and safety environment.” We suggest further detail be provided regarding the suitable use of barriers and enclosures. In particular with enclosures, the locations of where they can be used should be provided once the size and space details are available. An onsite assessment should be undertaken at each location and, if an enclosure is able to be installed safely, this would be the BPO for some noisy
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The size and space details of enclosures are flexible as they may either be proprietary systems but may also be constructed from noise blankets. A statement on on-site assessments of safe construction has been included
Construction Noise and Vibration Delivery Work Plan construction activities, such as concrete cutting Appendix C
The objective of the SSCNVMP’s are to detail the best practicable option(s) to avoid, remedy or mitigate the identified adverse effects from noise exceedances. There is not much detail in the SSCNVMP in regard to the BPO, such as whether or not barriers or enclosures will be installed. At what stage will this be completed? The following tables are not completed:
Activity specific BPO measures are outlined in the DWP. These measures are to be applied wherever practicable, and as such, will cover works where there are expected exceedances. The tables are not complete because they are a contingency for if site representatives request consultation in the future.
C26.3.1 and C26.3.2 C27.3.1 and C27.3.2 C28.3.1 and C28.3.2 C29.3.1 and C29.3.2 C30.3.1 and C30.3.2 C31.3.1 and C31.3.2 C32.3.1 and C32.3.2 Appendix C
It is noted that noise levels from works on the Normanby Road worksite are not predicted to exceed limits but the SSCNVMP detail contingency measures. Section C24.5 states: The primary effect on the building currently relates to reradiated noise from vibration. Why is there no SSCVMP? Vibration limit for filming is 0.20 mm/s (approximately 1mm/s PPV) between 4.00pm – 9.00pm. Please provide more details of the vibration monitoring proposed and the alert response protocol.
We have updated the SSCNVMP to reflect these comments. Section C24.5 summarises comments made during prior consultation but does not represent the noise and vibration effects expected due to Normanby Road works. The table is incomplete because at this stage we predict that there will be no exceedances at this property. The SSCNVMP is only required because this property is a notable receiver within 100 m.
Table C24.5.2 should provide the following: a summary of consultation with MediaWorks representatives and identifies methods and measures to mitigate noise effects and a statement of why they reflect best practicable option, but the table is not completed so there is no detail to review. Appendix C
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We have recently been advised that 26 C30 Updated to reflect comment. Normanby Road, Vietnamese Restaurant, is an historic basalt building (Colonial Ammunition Company). This building and some of the surrounding structures are being looked into further by our heritage team, but it is likely that a SSCVMP will be required.
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Construction Noise and Vibration Delivery Work Plan Review for early works outline plan, Styles Group letter dated 24 January 2020 Appendix C29 22-24 Normanby Rd
Appendix C29 22-24 Normanby Rd
Appendix C30 26 Normanby Rd
Appendix C General
Consultation engagement with some affected parties has not been successful. Marshall Day advise that prior communication of timeframes for works with the potential to exceed the relevant noise limits will be provided where practicable. Further details are required regarding the communication that is planned with the occupier of the building.
The engagement has been documented. This includes summarising a conversation with the Body Corporate Manger, whom was not interested in discussed the project or its effects. Further avenues for engagement are being explored and the SSCNVMP will be updated accordingly.
We have reviewed the updated the SSCNMP for the night-time exceedance…
We have updated the language in the SSCNVMP to ensure the use of effective noise barriers for these works.
Barriers are proposed as far as practicable. As this is a specific management plan, and especially given this is night time noise affecting a residential building, more detail is required in the mitigation section for night works. The specific management plans do not say whether noise mitigation measures will be able to be put in place or what will actually be applied on site. At this stage of the project, details on mitigation options should be more certain and specific.
We have recently been advised that 26 The SSCNVMP already its elevated status as a Normanby Road, Vietnamese Restaurant, is historic building. However, Table 3.1 has now an historic basalt building (Colonial been updated as well as identified. Ammunition Company). This building (and some of the surrounding structures) is being looked into further by the heritage team, but it is likely that a SSCVMP will be required. Table 3.1 of the DWP Receiver and Building Types is still showing 26 Normanby to be commercial, which may be incorrect. (Summarised)
A detailed response to a similar request is We need to avoid, if possible, the end user of included in the IPR responses. We consider the generic mitigation measures should stay the plan needing to refer to the full copy of in the DWP main body to avoid repetition. the DWP as it is 45 pages long (125 pages The reviewer prefers they are elaborated on with appendixes). We appreciate that MDA do not want to repeat the whole of section 7 in each SSCNVMP for the benefit of “the end user”. We consider the end user is the (5 pages) of the DWP in each of the contractor, rather than the receiver (for SSCNVMP’s, but there needs to be more whom the SSCNVMP is prepared for). guidance for the user of the plan than just Therefore, we disagree. No change. referring to section 7 of the DWP. Condition 37.5 requires that the SSCNVMP are specific and need to say whether the measures in section 7 of the DWP will be put in place and what will actually be applied on site. This information should be more certain for the end user. (and)
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Construction Noise and Vibration Delivery Work Plan We agree with the IPR comments that specific mitigation measures should be detailed (or at least referenced) in the SSCNVMP’s. The SSCNVMP’s do not currently provide specific and certain details of the mitigation and management that will be in place and made effective.
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Construction Noise and Vibration Delivery Work Plan
Appendix F: Glossary of Terminology Noise Ambient Noise
Ambient Noise is the all-encompassing noise associated with any given environment and is usually a composite of sounds from many sources near and far.
A-weighting
A frequency filter which is applied to a measurement of sound so as to more closely approximate the frequency bias of the human ear.
dB
Decibel – the basic measurement unit of sound. It is a logarithmic ratio of measured sound pressure level with respect to a reference level of 20 micropascals.
LAeq(T)
The A-weighted, time averaged sound level (on a logarithmic/energy basis) over the measurement period T (e.g. between 10 and 60 minutes).
LAFmax
The maximum A-weighted sound level recorded during the measurement period. Measured with fast time weighting i.e. a 125-millisecond time constant
Noise
A sound that is unwanted by, or distracting to, the receiver.
NZS 6801:2008
New Zealand Standard NZS 6801:2008 "Acoustics - Measurement of Sound"
NZS 6802:2008
New Zealand Standard NZS 6802:2008 "Acoustics - Environmental Noise”.
NZS 6803:1999
New Zealand Standard NZS 6803:1999 “Acoustics – Construction Noise”.
Vibration PPV
Peak Particle Velocity, measured in mm/s. This is the standard metric for assessing construction vibration levels.
DIN 4150-3:1999
German Standard DIN 4150-3:1999 “Structural Vibration – Part 3: Effects of vibration on structures”. This standard is adopted to assess building damage.
General Suitably qualified and experienced acoustic specialist
A person who has sufficient qualifications and experience in the relevant field(s) of acoustics (noise and/or vibration) to undertake robust measurements and assessments i.e. a Member of the Acoustical Society of New Zealand.
Other Abbreviations 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
SSCVMP
Site Specific Construction Vibration Management Plan
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