In this paper, a risk cloud model (RCM) based on cloud model theory is proposed for evaluating risks in the nautical navigational environment (NNEt). To validate the method, the proposed strategy is applied to a risk evaluation of NNEt of the waters around the Hangzhou Bay Sea-Crossing Bridge and the results are compared with those of a conventional fuzzy theory-based evaluation approach. The results show that risk evaluations based on the proposed RCM are robust, can accommodate uncertainty, can leverage multi-channel information, and provide a full-featured analysis of NNEt. In addition, plots of the RCM droplets provide an intuitive depiction of the risk level, which is extremely beneficial in analyses of the results. Thus, the proposed RCM and implementation method is well-suited for use in conducting risk evaluation of NNEt.

中文翻译：

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使用风险云模型对航海航行环境进行特色风险评估

本文提出了一种基于云模型理论的风险云模型（RCM），用于评估航海环境（NNEt）中的风险。为了验证该方法，将所提出的策略应用于杭州湾跨海大桥周围水域的 NNEt 风险评估，并将结果与​​传统的基于模糊理论的评估方法的结果进行比较。结果表明，基于所提出的 RCM 的风险评估是稳健的，可以适应不确定性，可以利用多渠道信息，并提供对 NNEt 的全功能分析。此外，RCM 液滴的绘图提供了对风险级别的直观描述，这对结果分析非常有益。因此，所提出的 RCM 和实施方法非常适合用于进行 NNEt 的风险评估。