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Table 25.3 Fishing Vessel-to-Structure Allision Frequency (Base Case with Windfarm)
Number of Structures Annual Allision Frequency Allision Return Period
172 turbines, 5 substations, 2 met masts, 1 accommodation platform and 2 Lidar Buoys
6.76 x 10-02 15 years
387. The estimated collision frequencies are high and reflect the maximum target area assumed for all the structures based on the largest jacket suction bucket foundations. It also assumes the fishing vessel density following the development would remain the same as current levels.
388. In terms of the consequences of these impacts it is expected that the majority will be
relatively minor impacts during fishing itself and there will be low levels of risk to crew and of pollution (see Annex 15.1.2).
Date: Doc:
07.05.2014 A2539 East Anglia THREE Windfarm Appendix 15.1