閉塞領域についての一考察

概要

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As one of techniques with which the congestion intensity of marine traffic is studied, there is the calculation model proposed by Y. Fujii which avails itself of the frequency of collision avoidance in a geometric pattern. The model basically regards, from a functional viewpoint, a ship safety domain as a bumper, and calculates the frequency at which such fictitious bumpers of ships would overlap each other when they proceed to the same direction without changing their navigation routes, hence being named "bumper method." This study first calculates the frequency of bumpers being overlapped and time-sequential distribution of collision avoidance, and then examines the collision avoidance behaviors; and finally, based on those study results, proposes a calculation method for obtaining the size of a bumper in correlation with the ship speeds, etc.
社団法人日本航海学会の論文
1984-01-25