視界制限時及び夜間における衝突海難に関する人的要因の特徴

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It is said that marine accident caused by human error of ship's navigator, such as mistaking to look out and unusual maneuver, accounts for about 80% of the total accidents. As the process of error caused accident is diverse, we have to research how navigator makes an error firstly. As the result, we can understand how its error causes ships' collision accidents. If we can make clear the process that navigator commits errors, we can build an effective and preventive measure against accidents. The authors established the classification method of human error on ships' collision accidents to make clear the dangerous factors behind an error based on the analysis of human error occurred in these accidents. Moreover the authors made clear the relation among factors regarding the error rising process by making use of the accident analysis using the classification method which authors had already established and reported. Last time, the authors had a grasp that the navigation under particular situation such as restricted visibility and nighttime, influences the process that navigator commits error, however could not make clear the relation between the error and the navigation under particular situation. This time, the authors conducted the error analysis by using quantification method and pointed out characteristics of the human elements in the case of ships' collision accidents occurred in restricted visibility and at night. As results of this study, following characteristics of human elements were pointed out. ・Navigators tend to make conjectures on other ship's avoiding action even if navigators realize the risk of collision in restricted visivility. ・Navigators do not tend to detect the risk of collision even if navigators realize the other ship existence at night.
社団法人日本航海学会の論文
2007-09-25

視界制限時及び夜間における衝突海難に関する人的要因の特徴

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