Shipping Density Assessment Based on Trajectory Big Data

Abstract

Due to the current shortage of maritime shipping density assessment methods, a method of shipping density assessment based on trajectory big data is proposed. Firstly, in order to obtain the trajectories following the actual situation, the AIS data is pre-processed. Secondly, as the minimum calculation unit, the grid is constructed, and the shipping density assesses evaluation index is established by comprehensively considering among the travel time, information transmission and the number of vessel crossing grids. Finally, with the proposed evaluation index, the shipping density is assessed quantitatively. The experimental results show that the proposed method can characterize the maritime shipping density and provide a new solution for maritime traffic situational awareness.