実航跡を利用した海上交通環境の評価システム

概要

論文の詳細を見る
Authors propose an assessment system of marine traffic environment based on ship's tracks in congested water observed by a shored based radar, which reflect turburances due to traffic and geographical enviroments there. Positions of a sailing ship are usually observed at a discrete time interval by radar, so they are interpolated by use of a spline curve. All ship's tracks are sorted in time in order to calculate relative motions between each ship. By the proposed assessment system both actual and simulated traffic situations are well recognized. Potential risk of encounter between ships are continuously derived based on exponential values of TCPA and DCPA which are normalized by observed length and speed of an objective ship. The assessment system is applied to the traffic situation in Kurushima Kaikyou, which is one of the most risky narrow channel in Japan. The results indicate the resonable correspondence to subjective assessments by navigators there.
社団法人日本航海学会の論文
1985-09-20