construction noise and vibration management plan – … · improvements only. construction works...

15 May 2015

Rev. Status Prepared by Checked by Date 0.2 Draft James Block Ed Breese

Name Position Date Signature

Ed Breese Environmental manager

CONSTRUCTION NOISE AND VIBRATION MANAGEMENT PLAN – MOUNT VICTORIA TUNNEL IMPROVEMENTS

CNVMP5-MVT

CONTENTS REVISION HISTORY ........................................................................................................................... II GLOSSARY ....................................................................................................................................... II 1. INTRODUCTION .................................................................................................................. 1

1.1 Plan and schedules ............................................................................................................... 2

1.2 Contact details ...................................................................................................................... 3

2. PROJECT OVERVIEW .......................................................................................................... 4

2.1 Hours of operation ................................................................................................................. 6

3. CRITERIA ............................................................................................................................. 7

4. RECEIVERS .......................................................................................................................... 9

5. STAKEHOLDER ENGAGEMENT ............................................................................................ 9

6. NOISE SOURCES ................................................................................................................. 9

7. VIBRATION SOURCES ....................................................................................................... 11

8. PREDICTED NOISE AND VIBRATION LEVELS ..................................................................... 12

9. MITIGATION ..................................................................................................................... 14

9.1 Reversing alarms .................................................................................................................. 15

10. SCHEDULES ....................................................................................................................... 15

11. MONITORING ................................................................................................................... 16

11.1 Noise ...................................................................................................................................... 16

11.2 Vibration ............................................................................................................................... 17

12. COMPLAINTS .................................................................................................................... 18

13. DOCUMENTATION............................................................................................................ 18

13.1 File .......................................................................................................................................... 18

13.2 Information sharing ............................................................................................................. 19

APPENDIX A – CONSTRUCTION NOISE AND VIBRATION INDUCTION ......................................... 20

APPENDIX B - REVERSING ALARMS ............................................................................................... 21


Page ii

CNVMP5-MVT

REVIS ION HISTORY

GLOSSARY

Version Revision 0.1 Draft 0.2 Revised draft following comments from WCC

Acronym Definition CNVMP Construction noise and vibration management plan CNVMS Construction noise and vibration management schedule MPA Memorial Park Alliance SH State highway TBC To be confirmed WCC Wellington City Council

Term Definition

dB A unit of measurement on a logarithmic scale which describes the magnitude of sound pressure with respect to a reference value (20 µPa)

LA10 The A-weighted sound level that is exceeded for 10% of the measurement period, measured in units of decibels (dB)

LAeq(t) The A-weighted time-average sound level over a period of time (t), measured in units of decibels (dB)

LAFmax The maximum A-weighted noise level with a 1/8 second or ‘Fast’ time constant (indicated by a ‘F’), measured in units of decibels (dB)

ppv Peak particle velocity. This is the instantaneous maximum velocity reached by the vibrating surface as it oscillates about its normal position


Page 1

CNVMP5-MVT

1 . INTRODUCTION This plan (CNVMP5-MVT) details the noise and vibration criteria, predicted levels, mitigation measures, monitoring requirements, and communication and complaint procedures, for:

Project: Mount Victoria Tunnel (MVT) Improvements

Construction location: Mount Victoria Tunnel, Wellington

Construction start date: April 2015

Construction finish date: April 2016

The objective of this plan is to provide a framework for construction noise and vibration management to ensure that noise and vibration levels at neighbouring buildings remain within reasonable limits throughout the works. This plan follows the guidance set out in the NZ Transport Agency State highway construction and maintenance noise and vibration guide1.

This plan (CNVMP5-MVT) addresses the construction works associated with the Mount Victoria Tunnel Improvements only. Construction works associated with the Arras Tunnel; Memorial Park; Victoria Street Transformation and the Wellington Inner City Improvements are the subject of other plans.

Items highlighted in yellow will be updated as soon as the information is available/confirmed.

1 NZ Transport Agency State highway construction and maintenance noise and vibration guide, 2013. Link

http://www.nzta.govt.nz/resources/sh-construction-maintenance-noise/


Page 2

CNVMP5-MVT

1.1 Plan and schedules This document provides the overall framework for management of construction noise and vibration, and broad details of the construction processes, typical noise levels and mitigation. This document will be updated following consultation with stakeholders and as details of the construction methodology are confirmed. Specific detailed information of individual construction activities and specific mitigation and management measures will be contained within separate schedules to this plan. These will be prepared once detailed information is known for each activity as described in Section 10.

The hierarchy of key documents is shown in Figure 1 below.

Figure 1 - Key documents

Construction Noise and Vibration Management Schedule 1

(CNVMS1-MVT)

Construction Noise and Vibration Management Schedule 2

(CNVMS2-MVT)

Construction Environmental Management Plan

(CEMP)

Construction Noise and Vibration

Management Plan (CNVMP5-MVT)

Other plans


CNVMP5-MVT

Page 3

1.2 Contact details Table 1 - Contacts

Role Name Organisation Phone Email 24 hour public contact number/email Memorial Park

Alliance 0800 020 086 [email protected]

Environmental Manager Ed Breese 021 333 726 [email protected] Construction Manager Steve Croft 027 214 0789 [email protected] Community Relations Manager Brian Aspin 027 554 1145 brian.aspin@ memorialpark.co.nz Stakeholder liaison Brendon Dale 022 089 1043 [email protected] Noise and vibration James Block 021 738 241 [email protected] Site Engineer Engineering Supervisor Noise and vibration monitoring manager

Alan Benton 021 537 523 [email protected]

Council – Noise Officer John Dennison Wellington City Council

021 247 8671 [email protected] Council – Compliance Liaison Manager

Amanda Staddon-Smith 021 227 8291 [email protected]

The Site Engineer will be responsible for ensuring that this construction noise and vibration management plan is correctly implemented.


CNVMP5-MVT

Page 4

2 . PROJECT OVERVIEW The MVT Improvement Project will be separated into five main work zones as shown in (Figure 2). The activities being conducted in each zone are listed in Table 2 along with the time of day that each activity is likely to occur.

Table 3 provides further details of the construction activities and a programme for the works. These details will be updated as the construction methodology is refined.

Table 2 - Construction activities in each work zone

Zone Time Activity Zone 1 – In-tunnel works Night Mid-control room refurbishment

Grit blasting, chemical cleaning and painting Chasing repairs Install brackets, panels and handrails Road surface and kerb repair Removal and installation of services

Zone 2 – Portal works Night Remove vegetation and loose concrete Jet wash walls Concrete spraying Install plant room drains Drilling and cutting into walls

Day Install portal wall fixtures Drilling and cutting into walls Painting Install barriers, loops, signals and lights

Zone 3 – Hataitai and Basin Control Rooms

Night Cut hole for louvres in Basin Control Room Install structural framework in Basin Control Room Control room refurbishment Install equipment, lights, etc. External building works Chemical cleaning and painting

Day Install equipment, lights, etc. Zone 4 – Replacement of Extract Fan Units

Day Exhaust room refurbishment Install equipment, lights, etc.

Zone 5 – Fibre Trenching Basin to Patterson

Day and Night

Install fibre cable below ground


CNVMP5-MVT

Page 5

Figure 2 Site layout

Basin Portal

Haitaitai Portal

In tunnel works

Extract fan (Alexandra Road)

Extract fan (Basin Reserve)

Fibre trenching


CNVMP5-MVT

Page 6

Table 3 - Outline construction phases/zones and programme

Zone Description West End East End In tunnel Above tunnel Start date

End date

Start date

End date

Start date

End date

Start date

End date

1 In-tunnel works 02/06/15 22/03/16 2 Portal works 04/05/15 09/08/15 28/04/15 19/07/15 3 Control rooms 10/12/15 08/04/16 02/06/15 08/04/16 4 Extract fans 11/06/15 24/06/15 5 Fibre trenching 25/05-/15 03/07/15

2.1 Hours of operation Due to the nature of the site and the restriction on closing the tunnel during the day traffic, a number of works cannot be carried out during the day and will be required to be undertaken at night. This will generally occur between 2030h and 0500h, and involves works inside the tunnel or in the vicinity of the two portals. Specific mitigation for works during these periods is described in Section 9.

Notwithstanding the need to carry out certain works at night, where possible, works will be carried out between 0700h and 1800h Monday to Friday and 0800h to 1400h Saturday. Near commercial buildings, if practicable, any particularly noisy activities will be scheduled for times at the beginning and end of the standard hours, so as to minimise disturbance during the main part of the day. This will need to be balanced against the impact on any nearby residential receivers.


CNVMP5-MVT

Page 7

3 . CRITER IA In the Wellington District Plan[2], the work site is surrounded by a number of different zones (Table 4).

Table 4 - Adjacent zones

Site Zone Adjacent zones Basin plant room Road reserve Inner residential

Educational Precinct E69

Extract fan above tunnel – near to Wellington East Girls College

Inner residential Educational Precinct E69 and E71

Open Space B and C

Inner residential

Extract fan above tunnel – near to Alexandra Road

Open Space C Outer residential

Open Space B

Haitaitai plant room Road reserve Open Space C

Outer residential

Centre

The work site falls within the WCC ‘Central Area’[3] and the district plan rules are specified in Volume 1, Chapter 13 of the District Plan. Rule 13.6.2.1 includes construction noise as a note in the margin:

For noise from construction, maintenance and demolition activities, including those associated with urgent repair of utilities to maintain continuity of service, on any site or on any road shall comply with, and be measured and assessed using the recommendations of NZS 6803P:1984 The Measurement and Assessment of Noise from Construction, Maintenance and Demolition Work.

NZS 6803P:1984 is a provisional standard and was revised and published as a full standard in 1999. The noise criteria in the 1984 and 1999 versions of the standard are similar, other than a change in the descriptor used from LA10 to LAeq(t). The key difference is that the 1999 version is expanded to outline significant processes such as the use of management plans. Therefore to adopt best current practice, the 1999 version will be used in this plan and the criteria in Table 5 adopted (for a project of ‘typical’ duration, between 2 and 20 weeks). These will be applied at one metre from the façades of the nearest neighbours.

2 WCC District Plan – Volume 1: Objectives, Policies and Rules, Chapter 13. Link 3 WCC District Plan – Volume 3: Maps. Link

http://www.wellington.govt.nz/plans/district/volume1/pdfs/v1chap13.pdf

http://www.wellington.govt.nz/plans/district/volume3/pdfs/v3map16.pdf


CNVMP5-MVT

Page 8

Table 5 – Noise criteria

Neighbour Day Time LAeq(15min)(a) LAFmax

Residential (occupied)

Weekdays 0630h - 0730h 60 dB 75 dB 0730h - 1800h 75 dB 90 dB 1800h - 2000h 70 dB 85 dB 2000h - 0630h 45 dB(b) 75 dB(b)

Saturday 0630h - 0730h 45 dB 75 dB 0730h - 1800h 75 dB 90 dB 1800h - 2000h 45 dB 75 dB 2000h - 0630h 45 dB(b) 75 dB(b)

Sunday and public holidays

0630h - 0730h 45 dB 75 dB 0730h - 1800h 55 dB 85 dB 1800h - 2000h 45 dB 75 dB 2000h - 0630h 45 dB(b) 75 dB(b)

Commercial Everyday 0730h - 1800h 75 dB None 1800h - 2300h 80 dB None

Notes: (a) NZS 6803 requires a representative time period to be used. For this project the LAeq(15 min) has been adopted for all assessments as using a 15 minute period is a conservative approach.

(b) It is noted that these noise levels are lower than those included in the District Plan for general noise (Section 7.6.1.1.1 Noise (emitted and received within Centres)) of 60 dB LA10 and 85 dB LAFmax.

The District Plan does not contain any rules or criteria for construction vibration and therefore those contained in the Transport Agency guide for highway construction projects[1] have been adopted (Table 6). These criteria are structured as part of a process whereby construction should be managed to comply with the Category A criteria. If measured or predicted vibration levels exceed the Category A criteria then management measures have to be defined in a schedule to this plan (see Section 10), and if the construction vibration exceeds the Category B criteria then construction activity shall only proceed if there is monitoring of vibration levels and effects, by suitably qualified experts.

Table 6 – Vibration criteria and measurement locations

Receiver Details Category A Category B Location Residential (occupied)

Daytime 0630h - 2000h 1 mm/s ppv 5 mm/s ppv Inside the building, on surface supporting occupants

Night-time 2000h - 0630h 0.3 mm/s ppv 1 mm/s ppv Commercial Daytime 0630h - 2000h 2 mm/s ppv 5 mm/s ppv

All buildings Transient vibration 5 mm/s ppv BS 5228-2 Table B.2 values

Building foundation

Continuous vibration BS 5228-2 50% of Table B.2 values


CNVMP5-MVT

Page 9

4 . RECEIVERS As shown in Table 4, the area includes several zones associated with residential and education uses. Residential and education buildings are located adjacent to the Basin-end portal and the western extract fan. The nearest residential building to the Hataitai portal is approximately 50 metres from the work area.

The nearest residential receivers to the tunnel portals are presented in Table 7.

Table 7 – Nearest receivers

Receiver Address Distance Nearest receiver to Basin Portal 21 Paterson St 17 m Nearest receiver to Haitaitai Portal 27 Hinau Rd 58 m Nearest receiver to fibre installation works

- 2 m

This plan has been developed to manage the noise and vibration at the nearest buildings to the works, with the assumption that the levels will be lower beyond these, due to the increased distance and potential screening effects of the nearest buildings.

5. STAKEHOLDER ENGAGEMENT A key aspect of this construction noise and vibration management plan is stakeholder engagement and this includes the following:

• Email contact via [email protected]

• Regular newsletters via email

• Advisory letters to inform of specific works, timing and expected effects.

• Personal visits

• Stakeholder involvement in site audit process

• Meetings with WCC

• Notifying WCC of potentially noisy night work

6. NOISE SOURCES Table 8 lists significant equipment proposed to be used on the site. At this time, the actual makes and models of equipment are unknown. The expected ranges of noise levels have been obtained from library data in BS 5228-1/NZS 6803. At the start of each activity, site noise monitoring will be conducted to adjust this data where necessary, as specified in schedules (see Section 10). As a mitigation measure, equipment at the lower end of the ranges stated will be targeted (see Section 9).

mailto:[email protected]


CNVMP5-MVT

Page 10

Table 8 – Machinery/equipment schedule – noise

Machinery/ equipment

Make/Model Type Noise level at 10 m LAeq

Data reference

Truck Various Various 77-82 dB Measured on MPA site Disc cutter TBC TBC 84 dB BS 5228-1, Annex D, Table D.6 Road miller TBC TBC 83 dB NZS 6803, Annex C, Table C.8 Paving machine TBC TBC 80-86 dB NZS 6803, Annex C, Table C.8 Road roller Dynpac CA151D 6.7 tonne 74 dB Measured on MPA site Grit blasting TBC TBC TBC TBC Painting TBC TBC TBC TBC Core drilling TBC TBC 85 dB BS 5228-1, Annex C, Table C.4 Concrete spraying

TBC TBC 79 dB BS 5228-1, Annex C, Table C.4

Handheld power tools

TBC TBC 73-80 dB BS 5228-1, Annex C, Table C.4

Jet washing TBC TBC 63 dB BS 5228-1, Annex C, Table C.3

Excavator TBC 66 kW, 14T 69 dB BS 5228-1, Annex C, Table C.4 Ref 25

Plate compactor

TBC TBC 77 dB BS 5228-1, Annex D, Table D.3 Ref 121

The following table shows the key activities and construction techniques likely to generate significant noise, and shows the equipment that is likely to be used.


CNVMP5-MVT

Page 11

Table 9 – Key activities – noise

Ref Construction activity Equipment, quantity and % use during that activity

N1 General in-tunnel works Disc cutter (2) 50% Handheld power tools (3) 50% Grit blasting (1) 50% Painting (1) 50%

N2 Road surface repair Road miller (1) 20% Paving machine (1) 40% Road roller (1) 20% Truck (1) 20%

N3 General portal works Core drill (2) 50% Disc cutter (2) 50% Handheld power tools (2) 50%

N4 Jet washing Jet washing (1) 100% N5 Concrete spraying Concrete spraying (1) 100% N6 Barriers, loops, signals, lights Disc cutter (1) 50%

Truck (2) 50% N7 Control room works (concrete) Core drill (1) 50%

Disc cutter (1) 50% N8 Control / exhaust room works Handheld power tools (2) 50%

Painting (1) 50% N9 Fibre installation Disc cutter (1) 20%

Excavator (1) 50% Plate compactor (1) 20%

7. VIBRATION SOURCES The following table shows the key construction activities likely to generate significant vibration.

Table 10 – Key activities – vibration

Ref Construction activity Equipment V1 Compaction Vibratory compacter V2 Compaction Road roller

As with the noise data, for most activities the actual items of equipment are unknown at this time. Additionally, there is variability in the vibration levels due the ground/soil on which equipment is working. The expected ranges of vibration levels from these activities have been obtained from site measurements and the NZ Transport Agency guide[1]. During further site vibration monitoring the validity of this data will be confirmed and adjusted where necessary.


CNVMP5-MVT

Page 12

Table 11 – Vibration levels

Ref Machinery/ Equipment

Equipment details

Vibration (ppv at 10 m)

V1 Vibratory compacter Dynapac CA151D

2.8 mm/s

V2 Road roller Various Various 8. PREDICTED NOISE AND VIBRATION LEVELS Using the information in Section 6 regarding the activities, equipment and noise source levels, the noise levels have been predicted for a range of distances for each of the activities likely to produce significant noise. These indicative calculations have been carried out using the guidance in the NZ Transport Agency State highway construction and maintenance noise and vibration guide and the noise source levels detailed in this plan. The noise results are presented in Table 12 (at the nearest receivers) and Table 13 (generic distances) in terms of the façade LAeq noise level. Any screening of noise from the equipment by the cutting walls, tunnel structure, or other equipment/vehicles has not been included. Hence these are conservative estimates and the actual noise levels are likely to be less. Monitoring during the works (Section 11) will be used to confirm this, or otherwise.

Where the predicted noise does not exceed the daytime criteria (75 dB, refer to Section 3), this has been indicated in the table with the letter ‘D’, ie this activity can be carried out without further specific assessment or mitigation. All of the predicted noise levels exceed the nighttime criteria (45 dB) at all distances. Further specific assessments in the form of schedules (Section 10) will need to be undertaken where noise levels are anticipated to exceed the criteria, over and above the mitigation listed in Section 9.

Table 12 - Noise predictions at nearest receivers

Activity Predicted noise level LAeq(15min) dB Nearest receiver to Basin Portal

Nearest receiver to Haitaitai Portal

N1 General in-tunnel works 83-84 dB 72-74 dB (D) N2 Road surface repair 78-82 dB 68-71 dB (D) N3 General portal works 86-87 dB 75-76 dB N4 Jet washing 61 dB (D) 51 dB (D) N5 Concrete spraying 77 dB 67 dB (D) N6 Barriers, loops, signals, lights 81-83 dB 70-72 dB (D) N7 Control room works 83 dB 72 dB (D) N8 Control and exhaust room works 71-78 dB 61-68 dB (D) N9 Fibre installation 95 dB(a) -

Note (a) This noise level is at the nearest receiver distance to the fibre installation works


CNVMP5-MVT

Page 13

Table 13 - Noise predictions at generic distances

Activity

Predicted noise level LAeq(15min) dB 10 m 20 m 30 m 40 m 50 m

N1 General in-tunnel works 87-89 dB 81-83 dB 78-79 dB 75-77 dB 74-75 dB (D) N2 Road surface repair 83-87 dB 77-81 dB 73-77 dB 71-75 dB (D) 69-73 dB (D) N3 General portal works 91 dB 85 dB 81-82 dB 79 dB 77 dB N4 Jet washing 66 dB (D) 60 dB (D) 56 dB (D) 54 dB (D) 52 dB (D) N5 Concrete spraying 82 dB 76 dB 72 dB (D) 70 dB (D) 68 dB (D) N6 Barriers, loops, signals, lights 85-88 dB 79-82 dB 76-78 dB 73-75 dB (D) 71-74 dB (D) N7 Control room works 88 dB 82 dB 78 dB 75 dB (D) 74 dB (D) N8 Control / exhaust room works 76-83 dB 70-77 dB 66-73 dB (D) 64-71 dB (D) 62-69 dB (D) N9 Fibre installation 81 dB 75 dB (D) 72 dB (D) 69 dB (D) 67 dB (D)

An initial assessment of vibration has been undertaken using the methodology described in the NZ Transport Agency State highway construction and maintenance noise and vibration guide and the predicted vibration levels are in Table 14 (nearest receivers) and Table 15 (generic distances) for the activities likely to generate significant vibration.

The generic vibration data presented in Table 11 has been used for the activities identified in Table 10. The predicted vibration levels at the nearest receivers exceed the daytime residential Category A criteria (1 mm/s, refer to Table 6) and at closer distances, the daytime commercial Category A criteria of 2 mm/s is also exceeded. All of the predicted levels exceed the night-time residential Category A criteria of 0.3 mm/s. These indicate where a schedule is required, over and above the mitigation listed in Section 9.

Table 14 - Vibration predictions at nearest receivers

Activity Predicted vibration level ppv mm/s Nearest receiver to Basin Portal

Nearest receiver to Haitaitai Portal

V1 Vibratory compactor 2.3-2.4 1.1-1.6 V2 Road Roller 2.4-2.5 1.2-1.6

Table 15 - Vibration predictions at generic distances

Activity Predicted vibration level ppv mm/s 10 m 20 m 30 m 40 m 50 m 75 m

V1 Vibratory compactor 2.8 2.1-2.3 1.7-2.0 1.5-1.8 1.3-1.7 0.9-1.4 V2 Road Roller 2.9 2.2-2.4 1.8-2.1 1.5-1.9 1.3-1.7 0.9-1.4


CNVMP5-MVT

Page 14

9 . MITIGATION As detailed in Section 8, indicative calculations have been conducted for the main items of equipment based on the outline construction methodology and generic distances. The noise and vibration control measures in Table 16 and

Table 17 have been identified as good practice for all of the works and are likely to be required to maintain compliance with the construction noise and vibration criteria beyond the immediate neighbours. Any further location specific mitigation for immediate neighbours will be determined when activities are assessed in detail and recorded in schedules (see Section 10).

During their induction, all site personnel will be required to read the construction noise and vibration induction form appended to this plan (Appendix A). Site personnel will also be briefed on any relevant schedules during the activity briefing. If required, specific training will be provided for site personnel.

Table 16 – Noise mitigation

Equipment/process General noise control measures All Select equipment with noise levels at the lower end of the range in Table 8

Only use required power and size of equipment Fit engine exhausts with silencers Operate equipment in a quiet and efficient manner Do not leave equipment idling unnecessarily Regularly inspect and maintain equipment Use non-tonal reversing alarms Avoid slamming doors Minimise speed and engine revs Turn off stereos Minimise the use of horns Place bedding layer or resilient liner in truck trays Use rubber seals around tailgates Use portable noise fence where possible Where possible, adjust the time of day and the duration of the activities. Schedule noisy activities to be carried out during the day if practicable, thereby reducing disturbance to nearby residential receivers at night. However, near to educational facilities, schedule noisy activities to minimise disturbance during the school day. This will need to be balanced against the impact on any nearby residential receivers.

Tracked vehicles Avoid tracked equipment where practicable Disc-cutting of paving

All disc cutting will be undertaken within a screened or mobile cutting booth


CNVMP5-MVT

Page 15

Table 17 – Vibration mitigation

Equipment/process General vibration control measures All Select equipment with vibration levels at the lower end of the range

quoted in Table 11 Only use required power and size of equipment Operate equipment in a smooth and efficient manner

9.1 Reversing alarms As tonal alarms (‘reversing beepers’) on construction vehicles are a common cause of noise complaint, broadband alarms will be used. More information on broadband alarms is provided in Appendix B. The Alliance will investigate bulk purchase of broadband alarms.

10 . SCHEDULES Construction noise and vibration management schedules to this plan will be prepared for:

• The construction activities listed in Table 18 where the predicted noise and vibration levels (Table 13 and Table 15) have exceeded the project criteria (Section 3), and

• Where complaints have been received and investigations indicate that actions are required to achieve reasonable noise and vibration levels.

The schedules will identify the potentially affected neighbours and confirm the proposed methodology and equipment to be used, along with specific mitigation.

Schedules should be reviewed for any activities where there is a complaint. If there is no schedule for an activity that has caused a complaint then consideration will be given to preparing one for the remainder of that activity.

Within the schedule, predictions of construction noise will be made using the calculator on the Transport Noise website (www.acoustics.nzta.govt.nz). These calculations will be used to identify where specific mitigation is required and to determine compliance with the Project noise criteria (Section 3).

Predictions of vibration will be made using the guidance in the NZ Transport Agency guide.

The schedules will detail any specific monitoring or consultation/communication requirements.

The schedule will be read and signed by all site personnel involved in the work, prior to the activity commencing. This will be incorporated into the activity briefing.

Table 18 – Activities requiring schedules

Ref Construction activity Schedule reference

Schedule date

N1 General in-tunnel works CNVMS01-MVT N2 Road surface repair CNVMS02-MVT N3 General portal works CNVMS03-MVT N4 Jet washing CNVMS04-MVT N5 Concrete spraying CNVMS05-MVT N6 Barriers, loops, signals, lights CNVMS06-MVT


CNVMP5-MVT

Page 16

Ref Construction activity Schedule reference

Schedule date

N7 Control room works CNVMS07-MVT N8 Control and exhaust room works CNVMS08-MVT N9 Fibre installation CNVMS09-MVT V1, V2 Vibratory compactor and road roller CNVMS10-MVT

11. MONITORING Monitoring will be conducted by the staff listed in Table 19. Compliance monitoring will typically be carried out at the closest receiver to the works.

Table 19 – Trained measurement staff

Name Organisation Contact details Alan Benton Memorial Park Alliance See Table 1 James Block See Table 1 James Green Contact via Alan Benton Matthew Nabney Enzo Liddle

11.1 Noise Noise monitoring will be conducted in general accordance with NZS 6801:2008 and NZS 6803:1999, using the NZ Transport Agency construction monitoring survey sheet and procedures (www.acoustics.nzta.govt.nz).

Noise monitoring will be conducted using the dedicated sound level meter kit owned by the Alliance. This equipment is listed below in Table 20 and will be stored at Alan Benton’s office (Geotechnics) for the duration of the Project. The calibrator will be verified by an accredited laboratory annually and the sound level meter and microphone biannually.

Table 20 – Noise monitoring equipment

Equipment Make Model Serial number Last verification

Sound level meter 01dB-Metravib Black Solo 02 45068 30/01/2015 Microphone 01dB-Metravib UC 52 139418 30/01/2015 Calibrator 01dB-Metravib CAL 02 81136 05/06/13 Software Solo black SLM CL2 1.405 - - Tripod Velbon CX-888 Black - -


CNVMP5-MVT

Page 17

Monitoring will be conducted as follows:

• When an activity commences, the sound levels assumed for each of the major items of equipment will be verified, and to assess the effectiveness of noise control measures and implementation of this plan.

• At regular intervals during the works, at least every two weeks, to check ongoing compliance with the construction noise criteria.

• As required by a construction noise and vibration management schedule.

• If required, in response to construction noise related complaints.

Following each noise survey, the results will be reported on the NZ Transport Agency survey report template and any issues discovered will be investigated. Monitoring details will be stored on the Project Orbit website and the results will additionally be recorded on the Project web page www.acoustics.nzta.govt.nz (Section 13).

If noise monitoring indicates that Project noise criteria are being exceeded, and that was not anticipated in the management schedule (Section 10) for the activity/location, then the management schedule will be reviewed by James Block or a delegate within 1 working day.

11.2 Vibration Vibration monitoring will be conducted in accordance with the guidance in the NZ Transport Agency State highway construction and maintenance noise and vibration guide. Vibration measurements will be conducted using the vibration monitoring kit dedicated to this Project. This equipment is listed in Table 21 and will be stored at Alan Benton’s office (Geotechnics) for the duration of the Project. The equipment will be verified by an accredited laboratory biannually.

Table 21 – Vibration monitoring equipment

Equipment Make Model Serial number Last verification

Vibration meters NOMIS MiniSuperGraph X8G

10046 8/01/13

Vibration Monitoring will be conducted as follows:

• As required by a construction noise and vibration management schedule.

• If required, in response to construction noise related complaints.

Following each vibration survey, the results will be stored on the Project Orbit website (Section 13).

http://www.acoustics.nzta.govt.nz/


CNVMP5-MVT

Page 18

12. COMPLAINTS The following procedure shall be followed for all noise and vibration complaints:

1. All noise and vibration complaints should be immediately directed to the MPA Community Relations Manager (Section 1.2).

2. As soon as the complaint is received it will be recorded on the Project stakeholder management spreadsheet.

3. An initial response will be made and recorded. Depending on the nature of the complaint the initial response could be to immediately cease the activity pending investigation, or to replace an item of equipment. However, in some cases it might not be practicable to provide immediate relief. The complainant and Council will be informed of actions taken within 5 working days. Contact details for the Council are recorded in Section 1.2 of this plan.

4. Where the initial response does not address the complaint, further investigation, corrective action and follow-up monitoring shall be undertaken as appropriate. This will be documented in a CNVMS. The schedule for the activity should be reviewed. The complainant and the Council will be informed of actions taken within 5 working days.

5. All actions will be recorded on the Project web page and the complaint will then be closed.

13. DOCUMENTATION 13.1 File The construction noise and vibration management file will contain this plan, schedules, monitoring reports and other data. For access by the Project, all electronic files relating to construction noise and vibration will be kept on the Project Orbit website at the following location:

Environmental – Noise and Vibration – Mount Victoria Tunnel Improvements

The construction noise and vibration management file will contain the following sections:

• Section 1 – Construction noise and vibration management plans

o This Construction Noise and Vibration Management Plan and any revisions

o Construction Noise and/or Vibration Management Schedules

o Signed induction forms and schedules

• Section 2 – Noise and vibration monitoring

o Site survey sheets and associated aerial photographs

o Site survey summary sheet

o Survey reports

o Survey and equipment operating procedures

o Current and past equipment kit details and calibration summary

o Copies of calibration certificates

• Section 3 – Mitigation register


CNVMP5-MVT

Page 19

13.2 Information sharing As part of this management plan, sharing of information is recommended as good practice. This includes schedules to this plan and survey reports. The following table details the recommended information sharing under this plan.

Table 22 – Information

Information Shared with Construction noise and vibration management plan

Wellington City Council

Construction noise and vibration management schedules


Noise/vibration survey reports


Noise/vibration complaint initial report

Wellington City Council (within twenty-four hours)

Noise/vibration complaint closed

Wellington City Council (within one week of closing complaint)


CNVMP5-MVT

Page 20

APPENDIX A – CONSTRUCTION NOISE AND VIBRATION INDUCTION Project: Mount Victoria Tunnel Improvements

There are several residential and commercial neighbours in close proximity to the works, where noise and vibration limits apply. To ensure limits are achieved, all staff are responsible for good noise and vibration management.

1. When arriving at work, please drive slowly on site and keep revs to a minimum. Keep stereos off and do not slam doors.

2. No shouting or swearing on site. Either walk over and talk to somebody or use a radio/phone.

3. Be careful with tools and equipment. Place them down and do not drop them.

4. Do not drag materials on the ground. Place them down when you arrive at the work area.

5. Equipment and vehicles should not be left running when not in use.

6. When loading trucks try not to drop material from a height. Load softer material at the bottom.

7. Noise enclosures should always have all doors/hatches closed when the equipment is in use.

8. Stationary equipment such as pumps and generators should be located away from neighbours.

9. All equipment is to be well maintained.

10. No work shall be conducted outside the hours of 0600h to 2300h without specific approval (contact the appropriate site engineer) and all staff involved in the task have read and signed the Construction Noise Management Schedule for that task.

11. All staff will read and sign the Construction Noise Management Schedule for a particular task.

12. Near commercial buildings, if practicable, any particularly noisy activities or those that produce vibration should be carried out for the evening period between 1800h and 2300h so as to minimise disturbance during the day.

13. If you see anything/anyone making unnecessary noise or vibration then stop it/them. If the source cannot be stopped then report it to the appropriate site engineer.

14. It is essential that good relationships are maintained with the local community. Any queries from members of the public should be responded to politely and referred to the appropriate site engineer or Community Relations Manager. Staff shall assist the public to make contact with this person. Staff shall not enter into debate or argue with members of the public.


CNVMP5-MVT

Page 21

APPENDIX B - REVERSING ALARMS


CNVMP5-MVT

Page 22

construction noise and vibration management plan – … · improvements only. construction works...

Documents