To determine the safety domain of the aids to navigation (AtoN), this article used analytical geometry methods to get the three-dimensional gyration model of the AtoN in ideal condition. Based on the ship's automatic identification system (AIS) data around the AtoN, we could get the distribution of the closest passing points of the ships around the AtoN, study and explore the distribution pattern of these closest points, then perform the composite analysis with the turning radius of the AtoN. We could get the safety domain model of the aids to navigation based on the AIS data by taking the ships' distribution probability as the correction coefficient and modifying the turning model of the aids to navigation.
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Li et al. (2024) studied this question.
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