An extraction method of ship route network suitable for complex intersection waters was proposed.Trajectory clustering algorithm was used to obtain the main ship traffic flows in the water area,and each ship traffic flow was converted into a grid image through the water area rasterization.The corresponding ship routes were extracted from different traffic flows by using the principle of im-age thinning,and the intersection points between routes were identified with the distance threshold as the standard,and finally the ship route network in the water area was formed.The results show that this method can not only effectively extract the main ship routes and route intersections in the water area,but also obtain the dense areas of intersections at the same time.
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