Attachment 4 - Existing_Acoustic_Environment (22.01.20)

                                                                    TABLE OF CONTENTS




1  INTRODUCTION ...................................................................................................................... 4
2  SITE DESCRIPTION .................................................................................................................. 5
3  NOISE TARGETS....................................................................................................................... 6
 3.1    ACOUSTIC DESCRIPTORS ................................................................................................ 6
 3.2    TYPICAL NOISE TARGETS ................................................................................................ 7
   3.2.1    Loading Dock Impacts (Trolley collection, mech. plant, compactor etc.) ........................ 7
   3.2.2    Traffic......................................................................................................................................................... 7
4 NOISE MEASUREMENTS ......................................................................................................... 8
 4.1    MEASUREMENT EQUIPMENT ......................................................................................... 8
 4.2    MEASUREMENT LOCATION ............................................................................................ 8
 4.3    MEASUREMENT PERIOD ................................................................................................. 9
 4.4    MEASURED NOISE LEVELS .............................................................................................. 9
   4.4.1    Unattended Measurements Results .............................................................................................. 9
   4.4.2    Attended Measurement Results .................................................................................................. 10
5 NOISE SOURCES/IMPACTS ................................................................................................... 11
 5.1    LOADING DOCKS ........................................................................................................... 11
   5.1.1    Trolley Collection ............................................................................................................................... 11
   5.1.2    Delivery Trucks.................................................................................................................................... 11
   5.1.3    Mechanical Plant ................................................................................................................................ 11
   5.1.4    Compactor............................................................................................................................................ 12
   5.1.5    Preliminary Calculation .................................................................................................................... 12
 5.2    TRAFFIC ........................................................................................................................... 12
6 CONCLUSION ......................................................................................................................... 13
APPENDIX A – PROPOSED SUBDIVISION PLAN ........................................................................ 14
APPENDIX B – UNATTENDED MEASUREMENT GRAPHED SUMMARY ................................... 15
 NGARA ....................................................................................................................................... 16
 RION-NL42 ................................................................................................................................ 24




  I:\Jobs\2019\20191414\20191414.1\20200115SSA_R2_Existing_Acoustic_Environment.docx                                                                                      3