Safety assessment for establishing ships' routeing: Recommended route off the western coast of Izu O Shima Island

Collision is the most frequent marine accidents. Safety measures have been implemented mainly in extremely congested harbours and bays. On the other hand, no safety measures have been implemented in coastal sea of the Pacific side of Japan, even though this area is also very busy and has a lot of collision accidents. As a safety measure, a recommended route will be implemented off the western coast of Izu O Shima Island as a part of a 5-year project for improvement of safety of marine traffic that Japan Coast Guard started in 2013. The authors developed a method for design and assessment of a ships' routeing and the method was applied on the recommended route in the area. In this paper, the method is briefly described and results of evaluation of proposed recommended routes are shown.