Stage 2: WestConnex M5 King Georges Road Interchange Upgrade. Construction Noise and Vibration Management Plan

Transcription

1 Stage 2: WestConnex M5 King Georges Road Interchange Upgrade Construction Noise and Vibration Management Plan JULY 2016

2 DOCUMENT CONTROL File name Report name CEMP App B3 Rev G Construction Noise and Vibration Management Plan Revision number G Plan approved by: [signed] Name [signed] Name Contractor PM Contractor EM REVISION HISTORY Revision Date Description Approval G 01/07/2016 Periodic review no changes F 27/08/15 Revised Section 7 Mitigation Measure ID CNVMM22 as per additional comment from DP&E in the letter dated 24/08/15. E 10/08/15 Revised Table 6-2 as directed by DP&E D 3/08/15 Revised as per additional DP&E s comments C 16/07/15 Revised as per DP&E s comments B 15/06/15 Revised as per WDA s and ER s comments A 25/05/15 Final for submission to WDA DISTRIBUTION OF CONTROLLED COPIES Copy no. Issued to Version WestConnex M5 King Georges Road Interchange Upgrade Construction Noise and Vibration Management Plan Page 2

3 CONTENTS 1 Introduction Purpose Background Structure of CNVMP Consultation for Preparation of the CNVMP Legal and Other Requirements Legislation Guidelines and standards Minister s Conditions of Approval Existing environment Sensitive receivers Noise Catchment Areas Background Noise Monitoring Noise and Vibration Criteria Construction Noise Criteria Vibration Criteria Environmental Aspects and Impacts Noise and Vibration Impact Assessment Noise Impact Assessment Vibration Impact Assessment Environmental Mitigation Measures Compliance Management Roles and Responsibilities Training Monitoring and Inspections Non-conformances Community Notification and Complaints Management Audits Review and Improvement of the CNVMP WestConnex M5 King Georges Road Interchange Upgrade Construction Noise and Vibration Management Plan Page ii

4 APPENDICES Appendix A Noise Sensitive Receiver Locations and Predicted Construction Noise Levels Appendix B Noise Management Levels Appendix C Indicative Plant and Equipment Sound Power Levels Appendix D Construction Vibration Safe Working Distances Appendix E Out of Hours Work Approval Procedure TABLES Table 2-1 Conditions of Approval relevant to this CNVMP... 3 Table 3-1 Noise catchment areas... 4 Table 3-2 Noise logging locations... 6 Table 3-3 Background noise monitoring results (db(a))... 6 Table 4-1 Structural damage criteria Heritage Structures... 9 Table 4-2 Transient Vibration Guide Values for Cosmetic Damage (BS 7385:2 1993) Table 4-3 Preferred and maximum vibration acceleration criteria Table 6-1 Sound power levels for project construction scenarios Table 6-2 Estimated project staging Table 7-1 Noise and vibration mitigation measures Table 8-1 Monitoring and inspection FIGURES Figure 3-1 Noise Catchments &Sensitive Receiver Locations (from EIS)... 5 Figure 4-1 Process using PNLs to determine construction noise criteria... 8 Figure 4-2 Summary of Project vibration criteria for structures... 9 WestConnex M5 King Georges Road Interchange Upgrade Construction Noise and Vibration Management Plan Page iii

5 GLOSSARY / ABBREVIATIONS Ancillary facility CCF CEMP CNIA CNVMP CoA CRM DP&E db(a) DECC EIS EMS Environmental aspect Environmental impact Environmental objective Environmental target EPA Defined by the Project Approval as a temporary facility for construction, including for example an office and amenities compound, construction compound, batch plant (concrete or bitumen), materials storage compound, maintenance workshop, testing laboratory or material stockpile area. Community Communication Framework Construction Environmental Management Plan Construction Noise Impact Assessment Construction Noise and Vibration Management Plan Conditions of Approval Community Relations Manager Department of Planning & Environment Decibels using the A-weighted scale measured according to the frequency of the human ear. Department of Environment and Climate Change (now EPA) Environmental Impact Statement Environmental management system Defined by AS/NZS ISO 14001:2004 as an element of an organisation s activities, products or services that can interact with the environment. Defined by AS/NZS ISO 14001:2004 as any change to the environment, whether adverse or beneficial, wholly or partially resulting from an organisation s environmental aspects. Defined by AS/NZS ISO 14001:2004 as an overall environmental goal, consistent with the environmental policy, that an organisation sets itself to achieve. Defined by AS/NZS ISO 14001:2004 as a detailed performance requirement, applicable to the organisation or parts thereof, that arises from the environmental objectives and that needs to be set and met in order to achieve those objectives. Environment Protection Authority EP&A Act Environmental Planning and Assessment Act 1979 EPL ER EWMS Feasible and reasonable Highly Noise Affected Environmental Protection Licence Environmental Representative Environmental Work Method Statements Defined by the Project Approval as the consideration of best practice taking into account the benefit of proposed measures and their technological and associated operational application in the NSW and Australian context. Feasible relates to engineering considerations and what is practical to build. Reasonable relates to the application of judgement in arriving at a decision, taking into account mitigation benefits and cost of mitigation versus benefits provided, community views and nature and extent of potential improvements. Defined by the ICNG to be a sensitive receiver exposed to construction noise levels greater than 75 db L Aeq (15min). ICNG Interim Construction Noise Guidelines (DECC 2009) INP KGRIU Industrial Noise Policy King Georges Road Interchange Upgrade WestConnex M5 King Georges Road Interchange Upgrade Construction Noise and Vibration Management Plan Page iv

6 L eq L Aeq (15min) L A (max) L 90 NCA NML OEH PNL Project, the RBL RMS rms RtS Sound Power Level Sound Pressure Level SSI SWL WDA Equivalent continuous sound level - the constant sound level which, when occurring over the same period of time, would result in the receiver experiencing the same amount of sound energy. The A-weighted equivalent continuous (energy average) A-weighted sound pressure level of the construction works under consideration over a 15-minute period and excludes other noise sources such as from industry, road, rail and the community. the A-weighted maximum noise level only from the construction works under consideration, measured using the fast time weighting on a sound level meter. The sound pressure level exceeded for 90% of the measurement period. For 90% of the measurement period it was louder than the L 90. Noise Catchment Area Noise Management Level Office of Environment and Heritage Predicted noise level The King Georges Road Interchange Upgrade The Rating Background Level for each period is the medium value of the assessment background level for the period over all of the days measured. There is therefore an RBL value for each period (day, evening and night) Roads and Maritime Services Root mean square of vibration signal. Response to Submissions The total sound emitted by a source The amount of sound at a specified point State Significant Infrastructure Sound power level WestConnex Delivery Authority WestConnex M5 King Georges Road Interchange Upgrade Construction Noise and Vibration Management Plan Page v

7 1 Introduction 1.1 Purpose This Construction Noise and Vibration Management Plan (CNVMP) describes how Fulton Hogan will minimise and manage noise and vibration impacts during construction of the King Georges Road Interchange Upgrade (the Project), which forms part of the WestConnex project. This CNVMP has been prepared for tendering purposes. This CNVMP has been prepared to address the requirements of the Conditions of Approval (CoA) for the Project, mitigation measures listed in the WestConnex M5 King Georges Road Interchange Upgrade Environmental Impact Statement (EIS) (Jacobs, October 2014), RMS s Specification D&C G36 Environmental Protection, and applicable guidelines and legislation. 1.2 Background As part of the EIS, a construction and operational noise and vibration assessment was prepared to address the Secretary s Environmental Assessment Requirements (SEARs) issued by the Department of Planning & Environment. The EIS assessed the predicted noise and vibration impacts during the construction of the Project. The noise and vibration assessment was included in the EIS as Appendix F - Construction and Operational Road Traffic Noise and Vibration Impact Assessment. The EIS concluded that there would be some noise and vibration impacts during construction and the extent would vary depending on the type of activity in progress and the proximity to sensitive receivers. These impacts will be mitigated through the implementation of the construction noise and vibration mitigation measures provided in this CNVMP. 1.3 Structure of CNVMP This CNVMP is part of Fulton Hogan s environmental management framework for the Project and is supported by other documents such as work procedures. The review and document control processes for this CNVMP are described in Chapter 10 of the CEMP. 1.4 Consultation for Preparation of the CNVMP This CNVMP has been developed in consultation with the relevant agencies and the relevant councils. A summary of consultation undertaken during the preparation of this CNVMP is provided in Appendix A2 of the CEMP. Consultation will continue throughout the construction of the Project with relevant stakeholders and agencies. Where relevant, the outcomes of this consultation will be documented in subsequent revisions of this CNVMP. WestConnex M5 King Georges Road Interchange Upgrade Construction Noise and Vibration Management Plan Page 1

8 2 Legal and Other Requirements 2.1 Legislation Legislation relevant to noise and vibration management includes: Protection of the Environment Operations Act 1997 (POEO Act) Protection of the Environment Operations (Noise Control) Regulation Relevant provisions of the above legislation are identified in the register of legal requirements included in Appendix A1 of the CEMP. 2.2 Guidelines and standards The main guidelines, standards and policy documents relevant to this CNVMP include: Interim Construction Noise Guideline (ICNG) (DECC 2009) NSW Environmental Criteria for Road Traffic Noise (ECRTN) (EPA 1999) NSW Industrial Noise Policy (INP) (EPA 2000) Road Noise Policy (RNP) (EPA 2011) RTA Environmental Noise Management Manual (ENMM) (RTA 2001a) Environmental Noise Management Assessing Vibration: A Technical Guideline (DEC, 2006) German Standard DIN Part 3 - Structural Vibration in Buildings - Effects on Structures Australian Standard AS2107 Acoustics - Recommended design sound levels and reverberation times for building interiors. Construction Noise Strategy Transport Construction Authority, 2011) AS Guide to Noise and Vibration Control on Construction, Demolition and Maintenance Sites, and British Standard 7385: Part 2 Evaluation and measurement of vibration in buildings. WestConnex M5 King Georges Road Interchange Upgrade Construction Noise and Vibration Management Plan Page 2

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11 Figure 3-1 Noise Catchments &Sensitive Receiver Locations (from EIS) 3.3 Background Noise Monitoring Background noise monitoring was conducted as part of the EIS noise assessment. Background noise levels for the area reflect the daily traffic volume patterns. Traffic noise is the dominant noise source in the area. The detailed results of the noise monitoring are provided in the Construction and Operational Road Traffic Noise and Vibration Impact Assessment at Appendix F of the EIS. The monitoring locations are listed in Table 3-2 below and shown on Figure 3-1. WestConnex M5 King Georges Road Interchange Upgrade Construction Noise and Vibration Management Plan Page 5

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13 4 Noise and Vibration Criteria 4.1 Construction Noise Criteria The Project-specific construction noise management levels (NMLs) have been determined in accordance with the Interim Construction Noise Guideline (ICNG) (DECC, 2009) and are documented in Appendix B of this CNVMP. All feasible and reasonable noise mitigation measures will be implemented with the aim of achieving the NMLs. However, as identified in the EIS, predicted noise levels during construction will exceed these NMLs. The predicted construction noise levels are identified in Appendix A of this CNVMP. Figure 4-1 shows the process by which predicted noise levels (PNL) during construction are applied to assess construction noise from the Project. To appropriately address construction noise levels, three specific stages of noise mitigation will be implemented depending on the predicted construction noise levels: 1. PNL less than 60 db(a) - Mitigation for works where predicted noise levels are less than or equal to 60 db(a): this is the baseline package of mitigation measures to be implemented. 2. PNL between 60 db(a) and 75 db(a) - Mitigation for works where predicted noise levels are greater than 60 db(a) but less than or equal to 75 db(a): this is a higher stage of noise mitigation measures where predicted noise levels at receivers are above 60 db(a). A level of 60 db(a) has been selected as it is approximately 10 to 15 db(a) above the daytime NML in each NCA. 3. PNL greater than 75 db(a) - Mitigation for works where predicted noise levels are greater than 75 db(a): this is the highest stage of mitigation measures to be implemented where a sensitive receiver is identified as Highly Noise Affected as defined by the ICNG. Further details on the stages of construction noise mitigation measures are provided in Chapter 7 of this CNVMP. 4.2 Vibration Criteria CoA D11 requires that all feasible and reasonable mitigation measures be implemented for the Project with the aim of achieving the following construction vibration goals: for structural damage to heritage structures, the vibration limits set out in the German Standard DIN : Structural Vibration - effects of vibration on structures; for damage to other buildings and/or structures, the vibration limits set out in the British Standard BS : Evaluation and measurement for vibration in buildings. Guide for measurement of vibration and evaluation of their effects on buildings; and for human exposure, the acceptable vibration values set out in Environmental Noise Management Assessing Vibration: A Technical Guideline (Department of Environment and Conservation, 2006). Further details of each of these references are provided below and specific vibration criteria for the Project identified Heritage Structures The German standard DIN 4150: Part Effects of Vibration on Structure (DIN 1999) guideline values for peak particle velocity (mm/s) criteria at heritage structures are summarised in Table 4-1 and shown graphically on Figure 4-2. WestConnex M5 King Georges Road Interchange Upgrade Construction Noise and Vibration Management Plan Page 7

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17 5 Environmental Aspects and Impacts A risk management approach was used to determine the severity and likelihood of the noise and vibration impacts of construction activities and to prioritise their significance. This process considered potential regulatory and legal risks as well the concerns of the community and other key stakeholders. The objectives of the risk assessment were to: Identify activities, events or outcomes that have the potential to adversely affect the local environment and/or human health/property Qualitatively evaluate and categorise each risk item Assess whether risk issues can be managed by environmental protection measures Qualitatively evaluate residual risk with implementation of measures. Appendix A3 of the CEMP contains a list of issues, related noise and vibration aspects and corresponding risks associated with the Project. Measures to mitigate the identified environmental risks are also provided. WestConnex M5 King Georges Road Interchange Upgrade Construction Noise and Vibration Management Plan Page 11

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20 6.1.2 General Construction Noise Impacts Based on the typical representative construction scenarios identified in Table 6-1, noise modelling predicted noise levels as shown in Appendix A. These predictions are based on typical representative construction works for each scenario that include a number of items of plant operating simultaneously. Note that the predictions do not factor in reductions on noise levels that can be achieved through reasonable and feasible mitigation measures. There will be no impact piling works during construction of the Project. The majority of sensitive receivers will be exposed to predicted construction noise levels lower than 60 db(a). During works near these sensitive receivers, the noise mitigation measures for PNL 60 db(a) will be implemented (refer to Chapter 7). A smaller number of sensitive receivers are exposed to predicted construction noise levels above 60 db(a) but less than or equal to 75 db(a). During works near these sensitive receivers, the noise mitigation measures for 60 db(a) < PNL 75 db(a) will be implemented (refer to Chapter 7). Appendix A also identifies the total number of Highly Noise Affected sensitive receivers, as defined by the ICNG as locations where predicted noise levels are above 75 db(a). During the relevant works near these sensitive receivers, the noise mitigation measures for PNL > 75 db(a) will be implemented (refer to Chapter 7). Highly Noise Affected sensitive receivers will also require management to ensure that they are only undertaken between: Between the hours of 8:00 am to 6:00 pm Mondays to Fridays Between the hours of 8:00 am to 1:00 pm Saturdays In continuous blocks not exceeding three hours each with a minimum respite period from those activities and works of not less than one hour between each block. It is expected that implementation of reasonable and feasible mitigation measures during construction works will mean that no sensitive receiver is exposed to noise levels above 75 db(a) for prolonged periods of time. All Out of Hours work will require approval in accordance with the procedure in Appendix E Ancillary Facilities, Stockpiles and Materials Processing Sites The Project will require several site compounds, a number of stockpile sites and two material processing sites which will accommodate a range of activities, plant and equipment. Site compounds will accommodate the majority of management, engineering, specialist and administrative personnel and will typically comprise: Office accommodation and staff amenities Light vehicle parking Material and chemical storage. Noise impacts in NCA02 (adjacent to the Penshurst Road compound), NCA05 (adjacent to the King Georges Road north compound), NCA06 (adjacent to the King Georges Road south compound), NCA07 (adjacent to the Elouera Street compounds) and NCA08 (adjacent to the Kirrang Street compounds) are predicted to be significant with NML exceedances of over 25 db during both standard daytime and out of hours work periods. The most noise intensive works are stockpiling and materials storage areas within the sites, and the movement of construction plant and equipment which may require use of semitrailers, trucks and graders. This scenario is considered to be representative of both establishment and operation of the compounds (as a worst-case). The predicted noise levels from ancillary facilities are typically below 60 db(a) at distances greater than 100 m from the facility. All reasonable and feasible mitigation measures for PNL 60 db(a) will be implemented for all ancillary facilities (refer to Chapter 7). During WestConnex M5 King Georges Road Interchange Upgrade Construction Noise and Vibration Management Plan Page 14

21 any works at facilities where receivers are within 100 m of noisy activities, the noise mitigation measures for PNL > 75 db(a) will be implemented (refer to Chapter 7). In most cases, receivers located near ancillary facilities are unlikely to be exposed to the noise levels for extended continuous periods, as activities at the facilities are not expected to be sustained at all times. Any Out of Hours work at these sites will require approval in accordance with the procedure in Appendix E. WestConnex M5 King Georges Road Interchange Upgrade Construction Noise and Vibration Management Plan Page 15

22 6.2 Vibration Impact Assessment Appendix D lists vibration intensive plant likely to be used during construction and provides recommended safe working distances that relate to cosmetic or structural damage and human discomfort for the proposed works. These are based on the recommendations provided in the EIS and in-house data. Note that the cosmetic damage safe working distances are based on residential structures and larger The extent of potential construction vibration impact is dependent on the type of equipment, the activity being undertaken, the separation distance and intervening ground conditions. Earthworks and bridge works are expected to be the major vibration-causing activities, given the use of vibratory rollers and hydraulic hammers. There is a higher likelihood that these activities would cause human annoyance up to 100 m away from the construction area. For structural impacts, cosmetic damage to buildings would not be likely where the building is located more than 25 m from the Project. Appendix D presents the safe working distances for the major classes of vibratory activities expected vibratory rollers and hydraulic hammers. There are likely to be instances where vibration intensive activities within the safe-working distances for human response must occur and cannot be avoided. This could be due to the work required, the underlying geological site conditions or the proximity of the building or receiver to the construction site. In these instances, the mitigation and management measures outlined in Chapter 7 will be implemented. It is not expected that significant works would occur within the safe working distances for cosmetic damage. Should works be required within these distances, then all reasonable and feasible vibration mitigation measures would be implemented (refer Chapter 7) and vibration monitoring would be undertaken (refer Chapter 8) to ensure that the vibration levels do not exceed the relevant cosmetic damage criteria. Should impact piling works occur, then a number of sensitive receivers may be exposed to vibration levels in excess of the human response criteria and would potentially be within the cosmetic damage safe working distance. In this case, all reasonable and feasible vibration mitigation measures would be implemented (refer Chapter 7) and vibration monitoring would be undertaken (refer Chapter 8). However, impact piling works are not expected to be required for the Project. Vibration impacts from the operation of ancillary facilities are not anticipated due to the typical activities and distance of receivers and structures from the facilities. However, in cases where occasional vibration intensive activities (such as compaction work) are proposed within ancillary facilities and this is within the safe working distances outlined in Appendix D, then the mitigation measures outlined in Chapter 7 will be implemented. WestConnex M5 King Georges Road Interchange Upgrade Construction Noise and Vibration Management Plan Page 16

23 7 Environmental Mitigation Measures Specific mitigation measures to address impacts from construction noise and vibration are outlined in Table 7-1. The noise mitigation measures are provided in three stages, depending on the predicted noise levels, as discussed in Section 4.1. As it is recognised that the NMLs are low in the Project area and will be exceeded during works, feasible and reasonable mitigation measures for PNL 60 db(a) L eq will be implemented at all times. Noise mitigation measures for Out of Hours work are also provided in accordance with the Out of Hours Work Approval Procedure provided in Appendix E. The vibration mitigation measures are to be implemented where works are occurring within the safe working distances for human response identified in Section 6.2. WestConnex M5 King Georges Road Interchange Upgrade Construction Noise and Vibration Management Plan Page 17

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28 8 Compliance Management 8.1 Roles and Responsibilities Fulton Hogan s Project Team organisational structure and overall roles and responsibilities are outlined in Section 4.1 of the CEMP. Specific responsibilities for the implementation of environmental controls are detailed in Table 7-1 of this CNVMP. 8.2 Training All employees, subcontractors and utility staff working on site will undergo site induction training that includes construction noise and vibration management issues, including: Existence and requirements of this CNVMP Relevant legislation Standard construction hours The process for seeking approval for Out of Hours work, including consultation with the EPA and sensitive receivers Location of noise sensitive receivers Noise and vibration mitigation measures; Complaints reporting Specific responsibilities to minimise impacts on the community and built environment from noise and vibration associated with the works. Further details regarding staff induction and training are outlined in Chapter 5 of the CEMP. 8.3 Monitoring and Inspections Regular noise and vibration monitoring and inspections will be undertaken during construction in accordance with Table 8-1. Additional requirements in relation to monitoring and inspections, including equipment calibration details, are documented in Sections 8.1 and 8.2 of the CEMP. Where monitoring indicates that noise or vibration levels consistently exceeds the predicted noise level used to apply mitigation measures, then additional mitigation measures will be applied to lower the noise level to the predicted noise level. For the purposes of this CNVMP, an exceedance is determined to be a measured level from construction works 3 db(a) or more above the predicted noise level. Standard noise monitoring locations have been selected for monthly noise monitoring as shown on the map in Figure 3-1. These locations have been selected to match the EIS locations, and are: L01 6 Grove Avenue, Narwee L02 15 Rosetta Street, Beverly Hills L King Georges Road, Beverly Hills L04 36 Allambee Crescent, Beverly Hills L05 6 Allambee Crescent, Beverly Hills L06 19 Elouera Street Beverly Hills L07 25 Kirrang Street, Beverly Hills. Note that these locations are subject to ease of access and acceptance from the resident that monthly monitoring can occur on or at the boundary of their property. If a resident does not wish monitoring to occur, than an equivalent nearby alternative location will be selected. The results of monthly noise monitoring will be included in the quarterly Compliance Status Reports as described in Section 2.2 of the Compliance Tracking program and will include: The locations and description of monitoring undertaken during the reporting period WestConnex M5 King Georges Road Interchange Upgrade Construction Noise and Vibration Management Plan Page 22

29 A table of noise monitoring results (e.g. for noise including LMAX, L10, L90 and LAeq noise levels) together with notes identifying the principle sources and operations A summary of any exceedances of the nominated criteria, and descriptions of the plant or operations causing these exceedances, and Details of any corrective and preventive actions taken and status of their implementation. WestConnex M5 King Georges Road Interchange Upgrade Construction Noise and Vibration Management Plan Page 23

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33 8.4 Non-conformances Non-conformances will be dealt with and documented in accordance with Section 8.5 of the CEMP. 8.5 Community Notification and Complaints Management Noise and vibration complaints will be recorded and addressed in accordance with Section 6.3 of the CEMP and the Community Communication Strategy (CCS). The key steps in this process include: The Project team will respond to and manage complaints made by stakeholders in accordance with AS 4269 Complaints Handling. A record of any contact, complaint, enquiry or representation will be entered into Consultation Manager. All calls or enquiries will be responded to immediately or within 2 working hours. Calls will be answered by the Community Manager or a delegated on site supervisor during out of hours works. When a complaint or enquiry cannot be responded to immediately a follow up verbal response on what action is proposed will be provided to the complainant/enquirer within 24 hours of a complaint or enquiry being received. A written response to the complainant/enquirer will be made within 10 business days if the complaint or enquiry cannot be resolved by the initial or follow up verbal response. Draft response will be provided to the WDA (if required) before responding to the contact. If a situation, issue or complaint concerning the environmental performance of the Project is unable to be resolved within a reasonable time period by the Community Relations team, the Environmental Representative will be consulted. If deemed necessary by the Community Manager, Environmental Manager and/or Environmental Representative, an appropriately qualified and experienced independent mediator will be engaged to attempt to resolve points of conflict. The Community Manager will notify the community of the construction activities that are likely to affect their noise and vibration amenity in accordance with the Community Communication Strategy. This notification will: Be made by targeted letterbox drop, doorknock, phone call or to noise sensitive receivers Be made not less than 5 days and not more than 14 days before commencement of any out of hours works or activities and include: o a diagram that clearly identifies the location of the proposed OOHW in relation to nearby cross streets and local landmarks or geographical features; o details of the timing, nature, scope and duration of the proposed works and activities; o detail of why the proposed works and activities are being undertaken outside of standard construction hours; o details of the predicted noise and vibration impacts of the works on identified sensitive receivers; o details of all proposed mitigation measures, including respite periods and proposed scheduling; o details of the types of plant and equipment that will be used to undertake the work; o details of how complaints may be made and additional information obtained WestConnex M5 King Georges Road Interchange Upgrade Construction Noise and Vibration Management Plan Page 27

34 8.6 Audits about the work; o contact details in community languages relevant to the locality; and include notification of any upcoming project community meetings / forums. Audits (both internal and external) will be undertaken to assess the effectiveness of environmental controls, compliance with this CNVMP, CoA and other relevant approvals, licenses and guidelines. Audit requirements are detailed in Section 8.4 of the CEMP. WestConnex M5 King Georges Road Interchange Upgrade Construction Noise and Vibration Management Plan Page 28

35 9 Review and Improvement of the CNVMP The CNVMP will be reviewed annually to ensure compliance with legislative requirements and its suitability and effectiveness for the project. The review may be in the form of: A formal management review A second party audit, and/or An inclusion as a separate item at a site meeting. The Environmental Manager can review and update the CNVMP more regularly where: Significant changes in construction activities occur Where targets are not being achieved In response to audits and nonconformity reports. Minor changes to the CNVMP will be approved by the Environmental Representative in accordance with Section 1.7 of the CEMP. All major changes to the Plan would need the approval of the Secretary. WestConnex M5 King Georges Road Interchange Upgrade Construction Noise and Vibration Management Plan Page 29

36 Appendix A Noise Sensitive Receiver Locations and Predicted Construction Noise Levels

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38 Predicted Noise Levels for Scenarios Table A-2 below sets out the predicted noise levels at nearby receiver locations. Table A-2 Predicted noise levels (from EIS)

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40 Appendix B Noise Management Levels

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43 Appendix C Indicative Plant and Equipment Sound Power Levels

44 Maximum sound power levels for the typical operation of construction equipment applied in noise modelling are listed in Table C-1. Table C-1 Sound Power Levels for Construction Equipment

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47 Appendix D Construction Vibration Safe Working Distances

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49 Hammer Large Hydraulic Hammer 1600 kg 12 to 18t excavator 22 m 73 m Vibratory Pile Driver Sheet piles 2 m to 20 m 20 m Pile Boring < 800 mm 2 m (nominal) N/A Jackhammer Hand held 1 m (nominal) Avoid contact with structure Note 1: Referenced from British Standard BS 7385 Part Evaluation and measurement for vibration in buildings Part 2 Note 2: Referenced from EPA Assessing Vibration: a technical guideline (DEC, 2006)

50 Appendix E Out of Hours Work Approval Procedure

51 Overview This work procedure has been developed to assist with compliance of environmental legislation, project obligations and to effectively manage potential environmental impacts associated with noise during in the course of construction of the Project. It is prepared in accordance with the Conditions of Approval (CoA), Environmental Impact Statement (EIS) management measures and Construction Noise and Vibration Management Plan (CNVMP). Objectives This procedure outlines the project requirements for construction working hours and documents a process to be implemented when work outside of standard hours is required. The key objective of the procedure is to ensure that impacts to the local community are avoided and minimised and the requirements of the EPL and CoA are met. Specific objectives include: Minimising potential adverse noise impacts to the community Identify sensitive receivers and ensure appropriate noise control measures are implemented during construction activities Ensure appropriate measures are implemented to comply with all relevant legislation and other requirements as described in the NVMP. Ensuring appropriate measures are implemented to comply with the Project s EPL. Project Requirements In accordance with CoA D7, standard construction hours are: 7am to 6pm Mondays to Fridays inclusive; 8am to 1pm Saturdays; and At no time Sundays or public holidays. Except as permitted by an EPL, high noise impact works and activities (including, but not limited to piling and saw cutting) shall only be undertaken: a) between the hours of 8:00 am to 6:00 pm Monday to Friday; b) between the hours of 8:00 am to 1:00 pm Saturday; and c) in continuous blocks not exceeding three hours each with a minimum respite from those activities and works of not less than one hour between each block. For the purposes of this condition continuous includes any period during which there is less than a one hour respite between ceasing and recommencing any of the work the subject of this condition. In accordance with CoA D9, notwithstanding conditions D7 and D8 construction works outside of the standard construction hours may be undertaken in the following circumstances: (a) construction works that generate: (i) LAeq(15 minute) noise levels no more than 5 db(a) above rating background level at any residence in accordance with the Interim Construction Noise Guideline (Department of Environment and Climate Change, 2009); and (ii) LAeq(15 minute) noise levels no more than the noise management levels specified in Table 3 of the Interim Construction Noise Guideline (Department of Environment and Climate Change, 2009) at other sensitive receivers; and (iii) continuous or impulsive vibration values, measured at the most affected residence, that are no more than those for human exposure to vibration, specified for residences in Table 2.2 of Assessing Vibration: a technical

52 (b) (c) (d) (e) (f) guideline; and (iv) intermittent vibration values, measured at the most affected residence, that are no more than those for human exposure to vibration, specified for residences in Table 2.4 of Assessing Vibration: a technical guideline; or where a negotiated agreement has been reached with affected receivers, where the prescribed noise and vibration levels cannot be achieved; or for the delivery of materials required outside these hours by the NSW Police Force or other authorities for safety reasons; or where it is required in an emergency to avoid injury or the loss of life, property and/or to prevent environmental harm; or construction works approved through an Out-Of-Hours Protocol prepared as part of the Construction Noise and Vibration Management Plan required under condition D31 (approved by the Secretary); or works approved through an EPL, including for works identified in an out of hours procedure. Predicted Out of Hours Works Predicted out of hours works include: Where the TfNSW Transport Management Centre (TMC) (or other road authority) refuse to issue a road occupancy licence for the works or activities during standard construction hours due to requirements to maintain network capacity, such as vegetation clearing, traffic control, signage, line marking and associated works for traffic switches Asphalting Concrete paving and associated saw cutting of concrete pavement Precast concrete works (either starting early or finishing late to avoid excessive heat in summer thus assisting with worker safety and to ensure a quality product) Concrete pours for bridge work, girder and pile construction (enabling unloading and return by haulage vehicles) to achieve the required strength and quality product. Minor works (e.g. supervised pumping operations, use of generator for site surveillance/ security operations), and Utility/service relocations where the asset owner refuses to issue a permit for the works during standard construction hours. Out of hours work process To enable the works listed above to occur outside of standard construction hours the following process will be implemented: 1. Project engineers to consult with the Environmental Manager (EM) and Community Manger 6 weeks in advance of proposed out of hours works. The engineer is to submit an out of hours works (OOHW) request form (refer to Annexure A) which will allow the EM to determine the predicted noise level and compliance with CoA D9. 2. The EM will assess the OOHW request and determine: if the proposed works are likely to exceed RBL +5dB(A) or management levels specified in Table 3 of the Interim Construction Noise Guideline, or if a negotiated agreement has been reached with affected receivers, where the prescribed noise and vibration levels cannot be achieved; or if the works are for the delivery of materials required outside of standard hours by the NSW Police Force or other authorities for safety reasons; or

53 where it is required in an emergency to avoid injury or the loss of life, property and/or to prevent environmental harm, or 3. If the EM determines, based on initial noise assessment, that the works will generate LAeq(15 minutes) noise levels that will be less than RBL + 5 db(a) and meet the requirements of CoA D8(a)(ii), (iii) and (iv), or comply with CoA D9(b), (c) or (d), the works will be approved by the EM. Specific noise management measures, in accordance with the CNVMP will be included in the OOHW approval and noise monitoring undertaken. 4. If proposed OOHW do not comply with CoA D9 (a) (e) an assessment will be undertaken as described below. Noise and Vibration Impact Assessment Where the proposed OOHW do not comply with CoA D9 (a) (e) a noise and vibration impact assessment for the works will be undertaken and include the following: details of the nature and scope of each activity and work, including details of times, vehicles, plant and equipment to be used to undertake that activity or work; detailed analysis to justify the scheduling and duration of each activity and work outside the standard construction hours, including taking into account: o the predicted impact on noise sensitive receivers of any activities and works undertaken outside the hours; and o the preference that high noise impact works be undertaken during the day; detailed analysis to justify use of the selected construction and work methods, plant and equipment compared to alternatives taking into consideration noise and vibration impacts; a table showing details of the noise and vibration mitigation measures for each activity and work, including respite periods, proposed to be adopted to minimise noise and vibration impacts on surrounding noise sensitive receivers in each locality; a table showing for each activity and work in each noise catchment: o the address of each of the most affected noise sensitive receiver; o the background noise level for each of the noise sensitive receivers listed in the table; o noise management levels as described in Section 4 of the ICNG (DECC, 2009); o the predicted LAeq (15 min) noise level, incorporating any 5 db correction for particularly annoying activities as listed on page 16 of the ICNG (DECC, 2009); and o an assessment of sleep disturbance as set out in Section 4.3 of the ICNG (DECC, 2009), where works are planned to extend over more than two consecutive nights. details of the specific noise mitigation measures to be adopted in respect of any activity or work predicted to generate noise levels at any noise sensitive receiver exceeding the noise affected LAeq(15minute) level of background plus 5 db outside the standard hours; a diagram showing the location of noise and vibration monitoring locations in relation to each of the most affected noise sensitive receivers for each activity and work in each noise catchment; 5. The EM will document the assessment required by this condition in a report. OOHW with a low or medium risk factor 1 may be approved by the ER (refer Figure E-1). Applications 1 Low risk factors: no sleep disturbance weekdays Saturdays Sunday and Public Holiday nights Medium risk factors: Sleep disturbance risk weekday nights Saturday nights Sunday and Public Holiday nights High risk factors: Prolonged work (i.e. >1 week) Sleep disturbance possible Impulsive noise and vibration likely (e.g. vibratory rolling or rock breaking)

54 for approval of OOHW with high risk factors are to be approved by the Secretary of the Department of Planning and Environment. 6. Applications for approval of OOHW with medium or high risk factors must be supported by a construction noise impact statement.

55 Figure E-1 Out of Hours Work Approval Flow Chart

56 Noise monitoring The EM will ensure that the following noise and vibration monitoring is undertaken for all OOHW: Undertake attended noise and vibration monitoring at representative stages of the activity or work to confirm whether the noise and vibration predictions in its noise and vibration assessment were accurate Noise monitoring indicates that the activity, work or combination of simultaneous activities or works has caused or is causing noise or vibration levels higher than the predicted levels at any noise sensitive receiver; or 2 or more complaints are received about the activity or works on the telephone complaints line. Community notification The Community Manager will notify the community in accordance with the Community Communication Strategy. This notification will: Be made by targeted letterbox drop, doorknock, phone call or to noise sensitive receivers Be made not less than 5 days and not more than 14 days before commencement of any out of hours works or activities and include: o a diagram that clearly identifies the location of the proposed OOHW in relation to nearby cross streets and local landmarks or geographical features; o details of the timing, nature, scope and duration of the proposed works and activities; o detail of why the proposed works and activities are being undertaken outside of standard construction hours; o details of the predicted noise and vibration impacts of the works on identified sensitive receivers; o details of all proposed mitigation measures, including respite periods and proposed scheduling; o details of the types of plant and equipment that will be used to undertake the work; o details of how complaints may be made and additional information obtained about the work; o contact details in community languages relevant to the locality; and include notification of any upcoming project community meetings / forums. Complaints Any complaints received as a result of the OOHW are to be managed in accordance with the Community Communication Strategy. On receipt of any complaints the works will cease and noise monitoring undertaken to confirm compliance with the predicted noise levels. If compliant, the works will recommence. If the noise monitoring determines noise levels greater than predicted, the construction process will be reviewed and additional noise mitigation measures will be implemented where reasonable and feasible. Record keeping All OOHWs applications are recorded electronically and documented with a unique identification number. Each application is entered into the OOHW database and tracked accordingly.

57 All noise monitoring results will be recorded using Noise Monitoring Field Sheet and data entered into the noise monitoring database.

58 Annexure 1 Out of hours request form Out of hours request No. Name of person requesting the work: Application Date: Why out of standard hours works is proposed/ required: Item Description Information / Comments 1 Description of the Work: 2 3 Plant and equipment to be used: (list all plant and noise generating equipment to be used during the work activities) e.g. hand tools, generators, crane etc Details on any concurrent construction activities being undertaken OOWH adjacent/ in close proximity to the proposed works Names of Forman supervising the work: 4 Subcontractor Details (if applicable) 5 Location of Work: 6 Proposed Dates/duration: 7 Start Time: 8 Finish Time: NOISE Will the work generate noise audible at the nearest residence? Attach a map of the work area 9 Describe the activities generating noise What measures are being taken to reduce noise impacts? 10 Proposed noise & vibration monitoring? TRAFFIC Will the work require traffic control? Describe the location and nature of disruption to traffic proposed Who is planning the traffic control?

59 Item Description Who will be responsible for the traffic control during the work? What lighting is to be provided for night 11 work? Does the work team comprise a minimum 12 of two persons? Who in the work team holds current 13 senior first aid qualifications? 14 Where is the first aid kit to be located? What means of communications is to be 15 used to summon assistance in an emergency? Has a check of the functionality of the 16 proposed emergency means been made? Information / Comments 18 Who from the project team will be supervising the work? Assessment Acoustic assessment prepared to determine if works are above RBL +5dB(A) at closest receiver Less than RBL +5dB(A) +5dB(A) above RBL Noise Report required Yes or No (as less than RBL +5dB(A)) APPROVALS 1 ENVIRONMENTAL 2 COMMUNITY 3 TRAFFIC 4 SAFETY NAME:. SIGNATURE: DATE:..... NAME:. SIGNATURE: DATE:..... NAME:. SIGNATURE: DATE:..... NAME:. SIGNATURE: DATE:.....

60 5 PROJECT MANAGER NAME:. SIGNATURE: DATE: EPA Approval Required Date Submitted... Date Approved...