A Study on evaluation and safety standards on navigation skill using ship track information

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The growing number of vessels and their size is directly related to the possibility of maritime accidents such as fire, explosion, loss of life and damage to environment. To improve the safety of navigation, we study the methods of evaluation on the skill of navigation using ship track data via radar and AIS information. To assess the risk we need to know how ships traffic streams behave, and we studied a comprehensive quantitative assessment of vessel streams in Tokyo Bay based on AIS historical data obtained from the Tokyo University of Marine Science and Technology (TUMSAT) Advanced Navigation System. Then, using track information acquired from AIS, we aim at the evaluation of each ship's navigation situation. By the results of investigation on some elements, we get some kind of characteristic on each ship's navigation and the possibility of navigation evaluation was suggested.