Status: Rev: Comments Date: Author: Reviewer:

Transcription

1 NEWMARKET LEVEL CROSSING CONSTRUCTION NOISE AND VIBRATION MANAGEMENT PLAN Rp 002 r A 16 August 2017

2 84 Symonds Street PO Box 5811 Wellesley Street Auckland 1141 New Zealand T: F: Project: NEWMARKET LEVEL CROSSING Prepared for: Opus International Consultants Ltd PO Box 5848 Auckland 1411 Attention: Ruth Smith Report No.: Rp 002 r A Disclaimer Reports produced by Marshall Day Acoustics Limited are based on a specific scope, conditions and limitations, as agreed between Marshall Day Acoustics and the Client. Information and/or report(s) prepared by Marshall Day Acoustics may not be suitable for uses other than the specific project. No parties other than the Client should use any information and/or report(s) without first conferring with Marshall Day Acoustics. The advice given herein is for acoustic purposes only. Relevant authorities and experts should be consulted with regard to compliance with regulations or requirements governing areas other than acoustics. Copyright The concepts and information contained in this document are the property of Marshall Day Acoustics Limited. Use or copying of this document in whole or in part without the written permission of Marshall Day Acoustics constitutes an infringement of copyright. Information shall not be assigned to a third party without prior consent. Document Control Status: Rev: Comments Date: Author: Reviewer: Draft - For Resource Consent 23 December 2015 Benjamin Lawrence Siiri Wilkening Draft 1 For client review 4 August 2017 Pranaya Thaker Benjamin Lawrence Draft 2 Client revisions 16 August 2017 Pranaya Thaker

3 TABLE OF CONTENTS 1.0 INTRODUCTION PROPOSED WORKS ACOUSTIC PERFORMANCE STANDARDS Conditions of Consent Noise Vibration PREDICTED CONSTRUCTION NOISE AND VIBRATION LEVELS Noise Vibration GENERAL MANAGEMENT PROCEDURES AND MITIGATION MEASURES Staff Training Equipment Selection General Measures Noise barriers COMMUNICATION AND CONSULTATION MONITORING Noise Vibration Contingency measures Building condition surveys Reporting COMPLAINTS PROCEDURE APPENDIX A GLOSSARY OF TERMINOLOGY APPENDIX B NOTICE OF REQUIREMENT - CONDITION 18 APPENDIX C MANAGEMENT SCHEDULES AND CONSULTATION Rp 002 r A BL Newmarket Level Crossing Draft CNVMP.docx 3

4 1.0 INTRODUCTION This Construction Noise and Vibration Management Plan (CNVMP) applies to the Newmarket Level Crossing Project (the Project). The Project intends to disconnect Sarawia Street and Laxon Terrace in Newmarket and link Laxon Terrace to Cowie Street via a road bridge over the rail line, turning Sarawia Street into a cul-de-sac. Whereas currently Cowie Street a dead end and the rail line crossing between Sarawia Street and Laxon Terrace provides a cumbersome route, the Project will create a safer and more efficient passageway, increasing amenity of the area. Table 1: Project details Project Location Contractor Construction Period Normal Construction Times Responsible site manager Newmarket Level Crossing Cowie Street, Sarawia Street and Laxon Terrace, Newmarket, Auckland TBC TBC - Estimated to be greater than 20 weeks hours, Monday to Saturday TBC This CNVMP is required by condition 18 of the Notice of Requirement (NoR). It will be implemented throughout the entire construction period, and is intended to be the primary tool to inform the Project's management of construction noise and vibration effects. It is considered a 'living document' which is reviewed as the Project progresses (this may include alternative equipment specification or variation to the construction methodology). A glossary of technical terms is included in Appendix A. 2.0 PROPOSED WORKS A summary of the proposed works can be found in Table 2 below. Areas referred to in the table are shown on Figure 1 overleaf. Table 2: Summary of proposed works Works Description Area Hours Piling Bored reinforced concrete piles with casings A, B, C Excavation General excavation works All areas Tree Removal Use of small excavator, chain saw D Car Park Removal Use of jackhammer, concrete saw, excavation, heavy vehicles D Crane Operation 350 tonne crane E Generally , except for beam placements Placement of pre-cast bridge beams Surfacing Vehicle movements Delivery via Sarawia Street to the bridge location, placed using crane (rail corridor will be closed) Involving compaction rollers and asphalting/paving machinery Heavy vehicles travelling to, from and within the site B, C All areas All areas Rp 002 r A BL Newmarket Level Crossing Draft CNVMP.docx 4

5 Works Description Area Hours General activities Hand operated machinery, welding etc. All areas Generally Figure 1: Construction Site Plan 3 Laxon Terrace 9 Cowie Street The two closest residential receivers are 3 Laxon Terrace (approximately 5 metres from the excavation and road paving works) and 9 Cowie Street (approximately 15 metres from the piling and road paving works). These are both zoned Residential in the Auckland Unitary Plan Operative in Part (AUP OP) November The dwellings at 15 Sarawia Street are zoned Business in the AUP OP, but are not expected to be noise critical as they are at a greater distance. As noted in Table 2 above, placement of the precast bridge beams will be carried out while the rail corridor is closed, known as a Block of Line (BOL). It is understood that typical BOL operating hours are 6 am to 8 pm, and therefore works associated with the beam placement may take place outside of normal construction hours. All other activities are expected to take place within normal construction hours, i.e hours, Monday to Saturday. Rp 002 r A BL Newmarket Level Crossing Draft CNVMP.docx 5

6 3.0 ACOUSTIC PERFORMANCE STANDARDS 3.1 Conditions of Consent 3.2 Noise The following conditions are given in Condition 18 of the NoR with regard to construction noise and vibration. The full text of Condition 18 can be found in Appendix B. Project standards - construction noise 18.1 Construction noise is to be measured and assessed in accordance with the requirements of NZS6803:1999 Acoustics Construction Noise. Noise generated from construction works is to comply with the long term noise limits stated in Tables 2 and 3 of NZS6803:1999 unless otherwise varied by a management schedule developed in accordance with condition The hours of work for construction activities shall be 0730 to 1800 from Monday to Saturday unless otherwise varied by a management schedule developed in accordance with condition Vibration from construction and demolition is not at any time to exceed the limits set out in Tables 1 and 3 of German Standard DIN 4150 Part 3: 1999 "Structural Vibration in Buildings Effects on Structures" (the "DIN Standard") at any building. Condition 18.1 requires compliance with the noise limits in Table 3. The noise limits apply at 1 metre from the façade of a building on any other site. Table 3: Noise limits at dwellings Time of week Time period Noise criteria for Residential Zones db LAeq db LAmax Weekdays Saturdays Sundays and public holidays Time period Noise criteria for Commercial Zones db LAeq All days Rp 002 r A BL Newmarket Level Crossing Draft CNVMP.docx 6

7 3.3 Vibration Condition 18.3 requires construction vibration to comply with the building damage limits in Tables 1 and 3 of German Standard DIN :1999 "Structural Vibration - Part 3: Effects of Vibration on Structures". Nearby buildings are classed as residential structures. The most stringent, and therefore, relevant vibration limit for residential buildings is 5mm/s PPV. People are likely to be disturbed at vibration levels significantly below these values. For context, British Standard BS :2009 indicates that a vibration level of 1 mm/s is typically acceptable in a residential environment with prior notification, while 10 mm/s is likely to be intolerable for any more than a very brief period. Vibration amenity shall be managed through the communication provisions in Section PREDICTED CONSTRUCTION NOISE AND VIBRATION LEVELS 4.1 Noise Noise predictions are provided in Table 4 overleaf for the closest affected receivers. The predictions include a 2m high noise barrier between the works area and adjacent receivers. A localised barrier has also been assumed for jackhammer and concrete saw use. Cells which are shaded grey indicate a predicted exceedance of the relevant construction noise limits. Table 4: Equipment noise levels at 1m from a building façade Predicted Noise Level at Closest Dwellings (db LAeq) Equipment Sound Power Level (db LAeq) 5a Cowie St 6 Cowie St 7 Cowie St 9 Cowie St 3 Laxon Tce 16 Laxon Tce Bored Piling Rig Excavator (20T) Jackhammer < 60 < 60 Excavator (3T) Concrete Saw < 60 < 60 Crane (350 tonne) 115 < 60 < 60 < < 60 < 60 Chainsaw < 60 < 60 Concrete Truck and Pump Vibratory Roller < 60 < 60 < Generator 93 < 60 < 60 < 60 < 60 < 60 < 60 [Road paving works TBC by contractor] The equipment above is predicted, at times, to exceed the construction noise limits for the closest residential receivers, even with the inclusion of temporary construction barriers. Most notably: Concrete saw: Use of concrete saws and jack hammers are also predicted to exceed the construction noise limits for short periods of time while the carpark at the end of Cowie Street is being removed. Delivery of pre-cast beams: Delivery of the precast bridge beams via road trucks and operation of the crane is predicted to comply with the normal construction noise limits at all receivers. Rp 002 r A BL Newmarket Level Crossing Draft CNVMP.docx 7

8 4.2 Vibration However, if these activities are undertaken before 0730 hours, the night-time and early morning construction noise limits would be exceeded at all nearby receivers. All construction works are predicted to comply with residential vibration limits contained in Table 3 of DIN :1999, with the exception of vibratory rolling required within 14m of any dwelling, If the use of a vibratory roller is required within 14m of a dwelling, and it is the best practicable option, prior consultation must be undertaken in accordance with Section 6.0 and a pre-construction building condition survey must be undertaken in accordance with Section 7.4 prior to the works commencing. 5.0 GENERAL MANAGEMENT PROCEDURES AND MITIGATION MEASURES 5.1 Staff Training Environmental Induction will include a briefing on this CNVMP, with attention given to the following aspects in particular: Roles and responsibilities for management of Project noise and vibration issues Consent requirements/conditions Project noise and vibration criteria Information about noise and vibration sources on-site, and locations of critical receiver positions The sensitivity of receivers and any operational requirements and constraints identified through communication and consultation Noise and vibration management procedures Complaints management procedures If required, training of site personnel in matters relating to construction noise and vibration will be provided by a suitably qualified acoustic expert. 5.2 Equipment Selection When selecting construction equipment, where practicable: Prioritise quieter construction methodologies Prioritise electric motors over diesel engines Prioritise rubber tracked equipment over steel tracked equipment Equipment should be suitably sized for the proposed task Equipment should be maintained and fitted with exhaust silencers and engine covers Avoid tonal reversing or warning alarms (suitable alternatives may include flashing lights, broadband audible alarms or reversing cameras inside vehicles) 5.3 General Measures Noise complaints generally correlate with one-off events that are considered by the complainant to be unnecessary, regardless of compliance. To avoid complaints, general mitigation and management measures include, but are not be limited to, the following: 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 Rp 002 r A BL Newmarket Level Crossing Draft CNVMP.docx 8

9 Avoid metal on metal contact by minimising drop height of materials, such as during the loading and unloading of trucks Avoid high engine revs through appropriate equipment selection and turn engines off when idle Mitigate track squeal from tracked equipment, such as excavators (may include tensioning and watering or lubricating the tracks regularly) Minimise construction duration near sensitive receivers 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 (e.g. excavators) Utilise noise barriers where appropriate (Section X) Prior to commencing activities that have the potential to exceed the noise and vibration performance standards (Section 4.0), ensure advanced communication is complete (Section X) Undertake monitoring as appropriate (Section X) 5.4 Noise barriers Temporary noise barriers should be used where a construction noise limit is predicted to be exceeded (Section 4.0) and the barriers would noticeably reduce the construction noise level. They should be installed prior to works commencing and maintained throughout the works. Effective noise barriers typically reduce the received noise level by 10 decibels. Where practicable, the following guidelines should be incorporated in the design and utilisation of temporary noise barriers: The panels should be constructed from materials with a minimum surface mass of 6.5 kg/m 2. Suitable panels include 12 mm plywood or the following proprietary noise curtains : o o o o Duraflex Noise Control Barrier - Performance Series ( Soundex Acoustic Curtain - Performance Series' ( Flexshield Sonic Curtain with 4 kg/m 2 mass loaded vinyl backing ( Alternatives should be approved by a suitably qualified acoustic professional because some proprietary noise curtains have insufficient surface mass for general use The panels should be a minimum height of 2 m, and higher if practicable to block line-of-sight The panels should be abutted or overlapped to provide a continuous screen without gaps at the bottom or sides of the panels The panels should be positioned as close as practicable to the noisy construction activity to block line-of-sight between the activity and noise sensitive receivers Where positioned on the site boundary, additional local barriers should be considered near the activity to ensure effective mitigation for sensitive receivers on upper floor levels. 6.0 COMMUNICATION AND CONSULTATION 6.1 Communication Written communication should be provided to all properties within 100m of the construction area prior to the works commencing to raise awareness of the Project, its expected activities and duration in the vicinity. When discussing concerns over vibration, it is important to convey that vibration can be felt at levels far below those that pose a risk of building damage. The response from affected parties can vary Rp 002 r A BL Newmarket Level Crossing Draft CNVMP.docx 9

10 widely and be influenced by such factors as proximity to the works, the sensitivity of their activities, their attitude to the project and whether they are also impacted by other project-related effects. 6.2 Consultation Further to the measures in Section 6.1: The management schedules in Appendix C shall be completed for all activities that are predicted to exceed the noise and vibration standards in Section 3.0. For occupants/owners within 50m of the construction area; an opportunity should be made available for discussions on a case-by-case basis, if requested For occupants/owners within 20m of the construction area; individual discussions should be held and, if required, suitable alternatives and/or mitigation options explored that are acceptable to both parties. 7.0 MONITORING 7.1 Noise A noise monitoring flowchart is given in Figure 2 below. Construction noise levels shall be monitored and assessed: In accordance with NZS 6803:1999 During critical phases of construction when noise levels may exceed the relevant standards (e.g. initial use of the bored piling rig) In response to reasonable noise complaints At 1m from the most affected building façade, or proxy position and adjusted for distance and façade reflections where appropriate, of sensitive receivers in the vicinity To reflect representative construction activities, and shall be no less than 10 to 15 minutes and not exceed 60 minutes duration The results should be used to update the Predicted Noise Levels in Table 5 where appropriate. Figure 2: Noise Monitoring Flow Chart Noise monitoring: During the first use of high noise equipment (Section 4.0) In response to a reasonable complaint (Section 8.0) or verify an exceedance Comply with noise limits? (Section 3.0) No Review mitigation and management strategies to ensure BPO (Section 5.0) Yes Limits practicably achieved? Yes No Response to a previous noncompliant measurement? No Implement contingency measures with affected parties (Section 7.0) Revise construction methodology Yes Submit findings to Project Manager Rp 002 r A BL Newmarket Level Crossing Draft CNVMP.docx 10

11 7.2 Vibration Vibration monitoring will be undertaken in response to a reasonable complaint, or where vibration is predicted to exceed the relevant standards in Section 4.2, including vibratory rolling undertaken within 14 metres of the building façade of 3 Laxon Terrace. Vibration from construction activities shall be monitored and assessed: In accordance with DIN :1999 During critical phases of construction when vibration may exceed the building damage limits, or in response to reasonable complaint being received At locations representative of sensitive receivers in the vicinity For a representative construction duration By a suitably qualified acoustic specialist The results should be used to update the Predicted Vibration Levels in Table 6 where appropriate. A vibration monitoring flowchart is presented in Figure 3. Figure 3: Vibration Monitoring Flow Chart Vibration monitoring: During the first use of high vibration equipment (Section 4.0) In response to a reasonable complaint (Section 8.0) or verify an exceedance Cosmetic Building Damage Notify Project Manager, cease the activity, engage a structural engineer and undertake a building condition survey Yes Heritage building? Comply with cosmetic building damage limits? (Section 3.0Error! No Engage heritage expert No Building damage? Yes Damage type? Amenity Yes No Structural Seek advice from structural expert before continuing Review mitigation and management strategies to ensure BPO (Section 5.0) Cosmetic No Response to a previous noncompliant measurement? Limits practicably achieved? Yes No Implement contingency measures with affected parties (Section 7.0) Revise construction methodology Yes Submit findings to Project Manager Rp 002 r A BL Newmarket Level Crossing Draft CNVMP.docx 11

12 7.3 Contingency measures In the event that a measurement shows non-compliance with the noise and vibration performance standards, the following procedures shall be implemented: Further measurements shall be undertaken where necessary, to determine the extent of noncompliance Alternative construction methodology shall be implemented where practicable, or additional mitigation and management measures shall be used Upon implementation of any additional mitigation measures, further measurements may be undertaken to confirm the effectiveness of those mitigation measures The site manager appointed by the Contractor shall liaise with affected receivers throughout this process 7.4 Building condition surveys A pre-construction building condition shall be undertaken for all dwellings within 20m of the works in accordance with Condition The survey shall include, but not be limited to, the following: Existing condition of buildings, services or structures, including existing levels of any aesthetic damage or structural damage Record (including photographs) of the major features of the buildings, services and structures including location, type, construction, age and present condition, including defects Foundation type of the building, service or structure Preparation of a report recording the findings of the survey. A copy of each report shall be forwarded to the site manager and kept at the site office Resurvey of buildings, services and structure, which are the subject of complaints, or if the vibration criteria have been exceeded and there is potential for damage to have occurred Within six months of completion of the Project, a detailed post-construction condition survey of the same buildings, services and structures shall be conducted and a report prepared 7.5 Reporting Any noise or vibration survey shall be summarised in a report, to be submitted to the site manager within one week of the assessment. Monitoring records shall be kept at the site office and made available upon request. 8.0 COMPLAINTS PROCEDURE A contact name and phone number to which complaints can be directed shall be clearly included in written notification and on-site signage. An initial response shall be undertaken as soon as practicable, however this should be within 1 hour of receiving a complaint, and resolved as soon practicable thereafter. 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 levels at the time of the complaint Reporting of findings and recommendations Actions and time taken to close-out complaint Communication with the complainant Reporting of the investigation in the complaints file Rp 002 r A BL Newmarket Level Crossing Draft CNVMP.docx 12

13 APPENDIX A GLOSSARY OF TERMINOLOGY SPL or L P SWL or L W db dba A-weighting L Aeq (t) L Amax NZS 6803:1999 DIN : 1999 PPV Sound Pressure Level: A logarithmic ratio of a sound pressure measured at distance, relative to the threshold of hearing (20 µpa RMS) and expressed in decibels. Sound Power Level: A logarithmic ratio of the acoustic power output of a source relative to watts and expressed in decibels. Sound power level is calculated from measured sound pressure levels and represents the level of total sound power radiated by a sound source. Decibel: The unit of sound level. Expressed as a logarithmic ratio of sound pressure P relative to a reference pressure of Pr=20 Pa i.e. db = 20 x log(p/pr) The unit of sound level which has its frequency characteristics modified by a filter (Aweighted) so as to more closely approximate the frequency bias of the human ear. The process by which noise levels are corrected to account for the non-linear frequency response of the human ear. The equivalent continuous (time-averaged) A-weighted sound level. This is commonly referred to as the average noise level. The suffix "t" represents the time period to which the noise level relates, e.g. (8 h) would represent a period of 8 hours, (15 min) would represent a period of 15 minutes and ( ) would represent a measurement time between 10 pm and 7 am. The A-weighted maximum noise level. The highest noise level which occurs during the measurement period. New Zealand Standard NZS 6803: 1999 Acoustics - Construction Noise DIN :1999 Structural Vibration - Effects of Vibration on Structures Peak Particle Velocity For Peak Particle Velocity (PPV) is the measure of the vibration aptitude, zero to maximum. Used for building structural damage assessment. Rp 002 r A BL Newmarket Level Crossing Draft CNVMP.docx 13

14 APPENDIX B NOTICE OF REQUIREMENT - CONDITION 18 Project standards - construction noise 18.1 Construction noise is to be measured and assessed in accordance with the requirements of NZS6803:1999 Acoustics Construction Noise. Noise generated from construction works is to comply with the long term noise limits stated in Tables 2 and 3 of NZS6803:1999 unless otherwise varied by a management schedule developed in accordance with condition The hours of work for construction activities shall be 0730 to 1800 from Monday to Saturday unless otherwise varied by a management schedule developed in accordance with condition Vibration from construction and demolition is not at any time to exceed the limits set out in Tables 1 and 3 of German Standard DIN 4150 Part 3: 1999 "Structural Vibration in Buildings Effects on Structures" (the "DIN Standard") at any building. Construction Noise and Vibration Management Plan 18.4 No later than ten working days prior to commencement of work on the project, the Requiring Authority must submit a Construction Noise and Vibration Management Plan ("CNVMP") to the Council (Major Infrastructure Projects Team Manager) for certification. The certified CNVMP and any management schedules prepared in accordance with condition 18.7 must be implemented, adhered to and maintained throughout the construction period The CNVMP must describe the best practicable option(s) that will be adopted to avoid, remedy or mitigate construction noise and vibration effects. The CNVMP must as a minimum address the noise management measures set out in Annex E of the NZS6803:1999 and the following: a) Construction sequencing; b) Machinery and equipment to be used, including promotion of the use of low noise machinery where practicable; c) Hours of operation, including times and days and reasons for when it is necessary to undertake construction works outside of the hours in 18.2; d) The design of noise mitigation measures such as temporary barriers or enclosures; e) Methods for monitoring and reporting on construction noise; and f) Methods for receiving and responding to complaints about construction noise The CNVMP must be prepared in accordance with the vibration management measures set out in the vibration standards of the DIN Standard and must address the following: a) Vibration monitoring measures; b) Vibration criteria; c) Possible mitigation measures; d) Complaint response; e) Reporting procedures; f) Notification and information for the community of the proposed work; g) Vibration testing of equipment to confirm vibration predictions; h) Location for vibration monitoring when construction activities are adjacent to buildings identified for settlement monitoring Where an activity is predicted or measured to be non-compliant with the project standards in conditions 18.1 and/or 18.2, the Requiring Authority is to prepare a management schedule(s). Any management schedule is to be activity specific and include, as a minimum, the following details: a) A description of the activity (including duration), plant and machinery that is expected not to comply with the noise and/or vibration limits in conditions 18.1 and 18.2; b) Predicted levels and proposed noise limits for all receivers where the levels will not be compliant with the limits in condition 18.1; Rp 002 r A BL Newmarket Level Crossing Draft CNVMP.docx 14

15 c) A description of the mitigation measures proposed to reduce the noise and vibration levels and minimise the degree of non-compliance as far as practicable including how the selected mitigation achieves the Best Practicable Option, and any mitigation options that have been discounted due to cost or any other reason; d) A description of any additional methods to manage the effects on the affected parties (e.g. temporary accommodation during the specific activity) Any management schedule produced in accordance with condition 18.7 is to be provided to the Council (Major Infrastructure Projects Team Manager) for certification no less than 5 working days prior to the authorised works commencing The CNVMP shall be prepared in consultation with Cowie Street Residents Association Incorporated (or a representative), and must clearly document the comments and inputs received by the Requiring Authority from Cowie Street Residents Association Incorporated (or a representative) and articulate how those comments and inputs have informed the development of the CNVMP and where it has not, reasons why it has not. Condition Surveys The Requiring Authority is to engage an appropriately qualified and experienced structural engineer who, prior to construction within 20 metres of any dwelling or structure on the properties shown on the Newmarket Level Crossing Condition Survey Map prepared by Opus International Consultants dated 27 April 2016, is to undertake a survey of those dwellings and structures whose owners and occupiers provide their written consent for access. The survey is to assess the current condition of the exterior and interior of the dwellings and other structures (including swimming pools and masonry walls) and shall determine the vibration criterion for each dwelling and structure according to the DIN Standard. All surveys are to be at the Requiring Authority's cost A copy of each survey is to be provided to the Council's Team Leader Compliance and Monitoring Central and a copy as it relates to the relevant property is to be made available to those property owners who participate in the survey and request a copy of the results On completion of the construction works a follow-up survey of each dwelling and/or structure surveyed is to be carried out at the Requiring Authority's cost. Rp 002 r A BL Newmarket Level Crossing Draft CNVMP.docx 15

16 APPENDIX C MANAGEMENT SCHEDULES AND CONSULTATION Table B1.1 details activities that are predicted to exceed the noise limits in Notice of Requirement Condition 18 and the associated potential effects. Similarly, Table B1.2 overleaf details activities that are predicted to exceed the vibration limits in Notice of Requirement Condition 18 and the associated potential effects. Table B2 overleaf identifies methods and measures to mitigate noise and vibration effects of the activities in Table B1.1 and B1.2 and a statement of why they reflect best practicable option. Highlighted details to be finalised once contractor has been appointed. Table B3 provides a summary of consultation with the Cowie Street Residents Association Incorporated, to be completed once input has been received from the appointed contractor and other relevant parties. Table B1.1: Activity Detail (Noise) ** indicative examples only** # Activity Details Predicted Noise Effects 1 Activity Period Duration Days Hours Crane (350T) Jan 2018 Apr days Monday to Saturday Location: External noise level: Façade performance: Internal noise level: Potential noise effects: 9 Cowie St 64 db LAeq 25 decibels sound level difference* db LAeq Annoyance and sleep disturbance ( ) 2 Activity Period Duration Days Hours Bored Piling Rig Jan 2018 Apr days Monday to Saturday Location: External noise level: Façade performance: Internal noise level: Potential noise effects: 6, 9 Cowie St and 3 Laxon Tce db LAeq 25 decibels sound level difference* db LAeq Annoyance 3 Activity Period Duration Days Hours Excavator (20T) Jan 2018 Apr days Monday to Saturday Location: External noise level: Façade performance: Internal noise level: Potential noise effects: 5a Cowie St and 3, 16 Laxon Tce db LAeq 25 decibels sound level difference* db LAeq Annoyance 4 Activity Period Duration Days Hours Excavator (3T) Jan 2018 Apr days Monday to Saturday Location: External noise level: Façade performance: Internal noise level: Potential noise effects: 5a Cowie St and 3 Laxon Tce db LAeq 25 decibels sound level difference* db LAeq Annoyance 5 Activity Period Duration Days Hours Concrete Saw Jan 2018 Apr days Monday to Saturday Location: External noise level: Façade performance: Internal noise level: Potential noise effects: 9 Cowie St 72 db LAeq (noise barriers assumed) 25 decibels sound level difference* db LAeq Annoyance * Façade performance estimate based on visual assessment of building construction with windows closed Rp 002 r A BL Newmarket Level Crossing Draft CNVMP.docx 16

17 Table B1.2: Activity Detail (Vibration) ** indicative examples only** # Activity Details Predicted Noise Effects 1 Activity Period Duration Days Hours Vibratory Roller Jan 2018 Apr days Monday to Saturday Location: Predicted level: Site specific limit: Exceedance risk: Potential effects: 3 Laxon Tce (two units closest to road) 7 13 mm/s PPV 5 mm/s PPV High Annoyance, cosmetic/structural damage Table B2: Mitigation Measures **indicative examples only** # Actions / specific mitigation measures 1 A. Provide notification 24 hours in advance of crane placement, with details of timing and contact details. B. Minimise period of crane use C. Manage unnecessary impact sounds, e.g. careful handling and by using strops in place of chains D. Localised screening of the source E. Localised screening of the receiver BPO Conclusion: A, B, C mitigation measures were used. Options D and E were not practicable due to the size of the crane, and also because the receiver was a multi-storey dwelling. 2 A. Provide notification 24 hours in advance of vibratory rolling, with details of timing and contact details. B. Minimise period of vibratory roller use C. Turn off vibrating functionality within approx. 15m of dwellings BPO Conclusion: A, B, C mitigation measures were used. Table B3: Consultation **indicative examples only** # Details Matters discussed 1 Receiver Date Name Phone CRL rep 2 Receiver Date Name Phone CRL rep Owner DD/MM/YY X X X X Tenant DD/MM/YY X X X X A. Predicted noise levels B. CNV DWP C. Communication protocol A. B. C. Rp 002 r A BL Newmarket Level Crossing Draft CNVMP.docx 17