Project: A2953 Client: East Anglia Offshore Wind Limited Title:
Navigation Risk Assessment – East Anglia THREE Offshore Windfarm
www.anatec.com 26 FUTURE CASE WITH WINDFARM ....................................................................... 166
26.1 COMMERCIAL SHIPPING ESTIMATED FUTURE CASE ............................................... 166 26.2 COMMERCIAL FISHING ESTIMATED FUTURE CASE ................................................. 166 26.3 RECREATIONAL ESTIMATED FUTURE CASE ............................................................ 166 26.4 COLLISION AND ALLISION PROBABILITIES ............................................................. 166 26.5 RISK RESULTS SUMMARY ...................................................................................... 166 26.6 CONSEQUENCES ..................................................................................................... 168 26.7 EFFECTS ASSOCIATED WITH COLLISION AND ALLISION MODELLING ..................... 170
27 COMMUNICATION AND POSITION FIXING ..................................................... 171 27.1
IMPACT OF MARINE RADAR ................................................................................... 171
27.2 VERY HIGH FREQUENCY (VHF) COMMUNICATIONS (INCLUDING DIGITAL SELECTIVE CALLING (DSC)) ................................................................................................................. 175 27.3 VHF DIRECTION FINDING ...................................................................................... 175 27.4 NAVTEX SYSTEMS .................................................................................................. 176 27.5 AIS......................................................................................................................... 176 27.6 GPS ........................................................................................................................ 176 27.7 STRUCTURES AND GENERATORS AFFECTING SONAR SYSTEMS IN AREA ................ 176 27.8 ELECTROMAGNETIC INTERFERENCE ON NAVIGATION EQUIPMENT ......................... 177 27.9 NOISE IMPACT ........................................................................................................ 177 27.10 EFFECTS ON COMMUNICATIONS AND POSITION FIXING .......................................... 178 27.11 EFFECTS ON VISUAL COLLISION / ALLISION AVOIDANCE ....................................... 179
28 CUMULATIVE AND IN COMBINATION EFFECTS ........................................... 181
28.1 CUMULATIVE SCREENING ...................................................................................... 181 28.2
INCREASED DEVIATIONS ASSOCIATED WITH OFFSHORE WIND FARM DEVELOPMENTS
(INCLUDING TRANSBOUNDARY) .......................................................................................... 183 28.3 CUMULATIVE COLLISION/ALLISION RISK MODELLING .......................................... 192
29 NEXT STEPS EIA AND ADDITIONAL MITIGATIONS ..................................... 197
30 FUTURE MONITORING........................................................................................... 199 30.1 SAFETY MANAGEMENT SYSTEMS (SMS) ............................................................... 199 30.2 FUTURE MONITORING OF MARINE TRAFFIC ........................................................... 199 30.3 SUBSEA CABLES ..................................................................................................... 199 30.4 DECOMMISSIONING PLAN ....................................................................................... 200
31 SUMMARY .................................................................................................................. 201
31.1 MARINE TRAFFIC ................................................................................................... 201 31.2 MODELLING ........................................................................................................... 202 31.3 HAZARD WORKSOP ................................................................................................ 202 31.4 EMERGENCY RESPONSE .......................................................................................... 203 31.5 CUMULATIVE IMPACTS ........................................................................................... 203 31.6 RECEPTORS FOR THE ENVIRONMENTAL IMPACT ASSESSMENT ............................... 203
32 REFERENCES ............................................................................................................. 205
Date: Doc:
07.05.2014 A2953 East Anglia THREE NRA Appendix 15.1 Page: v
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