海上交通事故の調査(そのII)(日本航海学会第45回講演会)

抄録

A survey on the marine traffic accidents is made for a period from 1966 to 1969. A grand total of 17,626 collided vessels is divided into two categories, namely, collisions in harbours (71%) and out of harbours (29%). Following items are investigated: (1) seasonal variation, (2) diurnal change, (3) distribution in ship size, (4) degree of damage especially on the relation of ship size and damage and (5) encounter condition. The main purpose of the study is the mapping of collision locations accompanied with information of ship size. Results show that the accident black spots are densely populated in the so-called Water Megalopolis around which most of Japanese factories are established.