Collision risk calculation method, collision risk calculation device and collision risk calculation program

摘要

The collision risk calculation device (1) uses the track data of each of the first and second vessels to determine the base risk value for the collision between the first vessel and the second vessel at each time point by a predetermined method. Calculate and identify the time range before the maximum base risk value from the base risk value, and extract the behavior pattern of one or both of the first vessel and the second vessel in the time range from the track data. Then, based on the behavior pattern, the degree of the behavior pattern of one or both of the first vessel and the second vessel is calculated, and the base risk is calculated based on the degree of the behavior pattern and the weight set for each behavior pattern. By correcting the value, it is possible to calculate the collision risk that matches the on-site feeling.