操船者の危険感に及ぼす昼・夜の影響について-II. : 他船との接近に対する危険感

概要

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In recent years, navigation at nighttime is increasing inside ports and harbors by deregulation of restriction about entry port at nighttime. In order to ensure the safety of navigation in those areas, the evaluation based on the difficulty of ship handling at daytime and nighttime is needed. The Environmental Stress Model, as a model which evaluates quantitatively the difficulty of ship handling, is already verified that it's output coincides with mariner's physiology index. But the model is only for the situation of daytime. This research aims at developing the nighttime version of Environmental Stress Model, from the meaning, in the first paper, it was proposed that the quantitative expression model of mariner's perception of safety when approaching toward a shore at nighttime, based on the model of daytime. As the continue, in this paper, it was analyzed that the data about the perception of safety when encountering with other ship at daytime and nighttime, obtained through the questionnaires and ship handling simulator experiments. It was clarified that the difference in the mariner's perception of safety at daytime and nighttime, and the quantitative expression model of mariner's perception of safety at nighttime was proposed.
社団法人日本航海学会の論文
2008-03-25