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Identification of collision risk factors perceived by ship operators in a vessel encounter situation

机译:船舶运营商在船舶遇到情况下识别船舶危险因素

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摘要

This study aims to elucidate the possible risk factors considering the point of view of a ship operator by identifying the maximum collision risk-bearing angle (MCRBA) and the distance at which the collision risk begins to increase significantly (DCRBIS), which are key factors affecting navigation safety in real maritime environments. Using two ships at sea in various vessel encounter situations (relative bearing angles of 000 degrees, 045 degrees, 090 degrees, and 135 degrees), the perceived ship collision risk (PSCR) was estimated by the ship operators. Then, the mean values of all the measured parameters were used to identify the bearing angle corresponding to the highest PSCR. The MCRBA was compared to the maximum frequency collision bearing angle (MFCBA) derived by investigating 200 reported ship collision cases in Korean waters. The highest experimental PSCR values were observed at a relative bearing angle of 135 degrees, which corresponded to the results of collision case analyses stating that the MFCBA was equal to 112.5 degrees-135 degrees. Notably, the PSCR magnitude increased most significantly at a distance of 1.25-1 NM in experiments involving various vessel encounter situations. Collision risk factors such as the MCRBA and DCRBIS can thus be used in the development of collision prevention protocols for ship operators.
机译:本研究旨在通过识别最大碰撞风险轴承角度(MCRBA)和碰撞风险开始增加(DCRBIS)的最大碰撞风险轴承角度(MCRBA)和距离,阐明船舶运营商的可能性危险因素。这是关键因素影响真正的海洋环境中的导航安全。在各种船舶中使用两艘船舶在各种船舶遇到的情况(相对轴承角度为000度,045度,090度和135度),船舶运营商估算了感知的船舶碰撞风险(PSCR)。然后,使用所有测量参数的平均值来识别对应于最高PSCR的轴承角。将MCRBA与通过调查200报告的韩国水域的船舶碰撞案例进行了比较的最大抗碰撞轴承角(MFCBA)。在135度的相对轴承角度观察到最高的实验PSCR值,其对应于碰撞壳体分析的结果,所述碰撞壳体分析说明MFCBA等于112.5度-135度。值得注意的是,在涉及各种血管遇到情况的实验中,PSCR幅度在1.25-1nm的距离下最显着增加。因此,诸如MCRBA和DCRBIS之类的碰撞风险因素可以用于开发船舶运营商的防撞协议。

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