本研究で得た結果の要旨は、以下の通りである。①当海域の全般的海難実態?当海域における海難は海上交通事故が約65％を占め、ヒューマンエラーが主要因である。②プレジャーボートの海難実態?当海域での最多海難船種はプレジャーボートであり、海洋レジャー最盛期となる8月の昼間の時間帯の海難量が突出している。%The Bisan-seto Sea Area is not only important marine transportation hub but also good fishing ground and marine recreational area. Recently, any vessels and boats compete with other vessels and boats, therefore, this situation is composed of congested traffic environment in this sea area. According to the past research , the Bisan-seto Sea Area had the most marine accidents in main 20 narrow channels of Japan.rnIn this study, we tried to research and analyze their marine accidents based all marine accident data of Japan Coast Guard from 1996 to 2005, and we had their basic analysis results that it was necessary for promotion of safety marine traffic, safety fishing, and cooperative coexistence of competing vessels and boats.
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