Although offshore wind power engineering has significant economic and social benefits, it is relatively close to navigable waters and will become a permanent navigation obstacle in the waters after completion, which will have a significant impact on the navigation safety of nearby ships. It may even cause collisions between ships and wind power engineering maintenance ships or wind turbines, resulting in significant casualties and economic losses. In this paper, on the basis of analysing the factors affecting the navigation safety of the shipping lanes near offshore wind farms, we establish the index system for evaluating the navigation safety level of the shipping lanes around offshore wind farms, and use the coefficient of variation algorithm, the cloud model theory, and the physical element topology theory to construct a model for evaluating the navigation safety level of the shipping lanes around offshore wind farms. This study can provide a reference for future offshore wind farm siting research on the evaluation of navigational safety.
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