船舶交通流におけるマン・マシンシステムの一考察 : 実船調査による避航時のレーダ写真解析

概要

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This paper is aiming to decrease the mental load at avoid action in congested waterways. A ship survey was made on avoid actions and mental load on board the Seiunmaru. Here, analysis is made on the relation of the Collision Judgement Index and humen reactions, the former having been proposed by Kobayashi and Endo. The Analysis gives results as following : (1) The upper limit of the Collision Judgement Index at starting time of avoid action is approximately equal to 100X10^<-4> and most of DCPA (Distance of Closest Point of approach) is less than 500m (=5L, L*ship length). Almost all avoid action are finished before TCPA (Time of CPA) reaches 2 minutes which roughly correspons to 7L. (2) The frequency of heart pulse incrases by 26±5% from the ordinary value which indicates increase of mental load. Above consideration leads a proposal to display an equialtitude map which enables quick look of the Collision Judgement Index.
独立行政法人海上技術安全研究所の論文
1988-05-30