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  • Environmental Statement Volume 4 – Introductory Annexes

    Annex 4.3.1 Airborne Noise Technical Report

    PINS Document Reference: 7.4.3.1 APFP Regulation 5(2)(a)

    January 2015

  • i

    SMart Wind Limited Hornsea Offshore Wind Farm Project Two – Environmental Statement Volume 4 – Introductory Annexes Annex 4.3.1 – Airborne Noise Technical Report

    SMart Wind Limited 11th Floor 140 London Wall London EC2Y 5DN Tel 0207 7765500 Email [email protected]

    Copyright © 2015 All pre-existing rights reserved.

    Liability

    This report has been prepared by RPS Group Plc (RPS), with all reasonable skill, care and diligence within the terms of their contracts with SMart Wind Ltd or their subcontractor to RPS placed under RPS’ contract with SMart Wind Ltd as the case may be.

    Document release and authorisation record

    PINS document reference 7.4.3.1

    Report number UK06-050200-REP-0014

    Date January 2015

    Company name SMart Wind Limited

    mailto:[email protected]

  • ii

    Table of Contents

    1 Introduction .......................................................................................................................... 1 1.1 Overview of Airborne Noise Technical Report ...................................................... 1 1.2 Purpose of this Report .......................................................................................... 1

    2 Study Area ........................................................................................................................... 1 2.1 Introduction ........................................................................................................... 1 2.2 Noise Sensitive Receptors .................................................................................... 1 2.3 Scope of Assessment ........................................................................................... 2

    3 Legislation, Guidance and Standards .................................................................................. 5 3.1 Guidance ............................................................................................................... 5 3.2 National Policy Statements ................................................................................... 5 3.3 National Planning Policy Framework ..................................................................... 6 3.4 Noise Policy Statement for England ...................................................................... 6 3.5 Offshore Technology Report: Noise and Vibration OTO 068/2001 ....................... 6 3.6 The Merchant Shipping and Fishing Vessels (Control of Noise at Work)

    Regulations ........................................................................................................... 6 3.7 The Assessment and Rating of Noise from Wind Farms: The Working Group on

    Noise from Wind Turbines (Report ETSU-R-97), 1996 ......................................... 7 3.8 A Good Practice Guide to the Assessment and Rating of Wind Turbine Noise,

    Supplementary Guidance Note 6: Noise Propagation over Water for On-Shore Wind Turbines – Institute of Acoustics Consultation Draft, December 2013 ......... 7

    3.9 Night Noise Guidelines for Europe ........................................................................ 7 3.10 British Standard 5228:2009 ................................................................................... 7

    4 Consultation ......................................................................................................................... 8 5 Baseline Environment ........................................................................................................ 11 6 Key Parameters for Assessment ........................................................................................ 11 7 Receptors .......................................................................................................................... 14

    7.1 Closest Existing Oil and Gas Offshore Platforms ................................................ 14 7.2 Project Two Offshore Accommodation Platforms ................................................ 14 7.3 Project One Offshore Accommodation Platforms ................................................ 14 7.4 Closest Commercial Shipping Route ................................................................... 14 7.5 Fishing Vessels ................................................................................................... 15 7.6 UK EEZ Boundary ............................................................................................... 15 7.7 East Riding of Yorkshire Coastline ...................................................................... 15 7.8 Residential NSRs within the UK .......................................................................... 15 7.9 Onshore and Offshore Leisure NSRs .................................................................. 16

    8 Assessment Criteria ............................................................................................................ 16 8.1 Basis for Assessment Criteria .............................................................................. 16 8.2 Occupational Receptors – Construction and Operational Assessment ................ 16 8.3 Offshore Accommodation Platforms - Construction and Operational Assessment17 8.4 Onshore Residential and Leisure Receptors - Construction Noise Assessment .. 17 8.5 Onshore Residential and Leisure Receptors - Operational Assessment ............. 17 8.6 Offshore Leisure Receptors - Construction and Operational Assessment ........... 18 8.7 Summary .............................................................................................................. 19

    9 Assessment Methodology ................................................................................................... 19 9.1 Construction Noise Assessment .......................................................................... 19 9.2 Operational Noise Assessment ............................................................................ 21

    10 Predicted Noise Levels ....................................................................................................... 22 10.1 Construction Noise Assessment .......................................................................... 22 10.2 Operational Noise Assessment ............................................................................ 23 10.3 Cumulative Effects ............................................................................................... 25

    References ................................................................................................................................ 30 Appendix A – Assessment Locations ........................................................................................ 31 Table of Figures

    Figure 2.1 Project Two Airborne Noise study area and Noise Sensitive Receptors (NSRs) (Subzone 2). ..........................................................................................................3

    Figure 2.2 Project Two Airborne Noise study area Noise Sensitive Receptors (NSRs) (cable route corridor). .......................................................................................................4

    Figure 10.1 Noise Contour Plot Presenting Operational Noise Levels for Project Two Layout 2 LAeq,T (dB). ............................................................................................................ 24

  • iii

    Table of Tables

    Table 4.1 Summary of key issues raised during Project Two consultation undertaken to date for Airborne Noise – Offshore................................................................................ 9

    Table 6.1 Design envelope scenario considered within assessment of potential impacts on Airborne Noise. ................................................................................................... 12

    Table 7.1 Assessment location for existing offshore platforms. .......................................... 14 Table 7.2 Assessment location for Project Two offshore accommodation platforms. ......... 14 Table 7.3 Assessment location for Project One offshore accommodation platforms. ......... 14 Table 7.4 Assessment location for closest commercial shipping route. .............................. 15 Table 7.5 Assessment locations for fishing vessels. ........................................................... 15 Table 7.6 Assessment locations for UK EEZ boundary. ..................................................... 15 Table 7.7 Assessment locations for closest land point. ....................................................... 15 Table 7.8 Assessment locations for intertidal zone. ............................................................ 15 Table 8.1 Basis for assessment criteria. ............................................................................. 16 Table 8.2 Thresholds of impact. .......................................................................................... 19 Table 9.1 Normalised Spectral Shape For Piling Noise Emissions. .................................... 20 Table 9.2 Generic noise data for 15 MW turbines. .............................................................. 21 Table 10.1 Construction (piling) predicted noise levels. ........................................................ 22 Table 10.2 Construction (cable laying vessel) predicted noise levels. .................................. 22 Table 10.3 Operational no