Track Pairs Collision Detection with Applications to Ship Collision Risk Assessment

The port waterway network plays an important role in the organization and management of ship traffic. Due to limited operations, conflicts, congestion, safety issues often arise waters. Conflicts between ships can be predicted by collision detection ships. A novel algorithm for trajectory pairs is proposed introducing variable time interval variables. In addition, improve overall accuracy compression reduce redundant calculation detection, a multi-factor Douglas-Peucker adapted with consideration speed turn constraints. maximum difference increased 1.5–2.5%, average 2.0–4.5%. Based on method mentioned above, risk assessment framework maritime established situation waters near Ningbo Zhoushan Port evaluated analyzed using historical track data.