As an effective evaluation of the productivity of dredging projects is an important element in the success of loading/unloading operations at ports, this study was carried out to find common reasons why dredging projects incur unintended damage at Anzali port open seas/coasts. It was found that the fuzzy decision making trial and evaluation laboratory (Dematel) method and experts’ opinions can be effectively used in dredging problems in practice considering risk interactions. Of 58 identified risks, the top ten were selected using a probability–effect diagram and then, for a more precise ranking, their rates of effects on one another were evaluated using the fuzzy Dematel approach. Finally, using a combination of fuzzy sets and the Dematel technique, the ten top risks were ranked by multiplying four factors: effects on the project, occurrence probability, effects on/of other risks. To demonstrate the capabilities of the proposed approach, it was used in the dredging project of the large and important Iranian port of Anzali. The results of this research were used to propose a risk prioritisation model considering the complex interactions of risks in port dredging projects. Some suggestions are made regarding how to lessen the risks and enhance safety measures.

中文翻译：

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一种新的模糊Dematel-Todim混合算法在港口疏project工程管理中的应用

由于对疏projects项目生产率的有效评估是港口装卸作业成功的重要因素，因此进行了此项研究，以找出导致疏An项目在安扎里港口公海/沿海意外损坏的常见原因。研究发现，在考虑风险相互作用的情况下，模糊决策试验与评估实验室（Dematel）方法和专家意见可以有效地用于解决实际问题。在58个已识别的风险中，使用概率-效果图选择了排名前十的风险，然后为了更精确地排名，使用模糊Dematel方法评估了它们对彼此的影响率。最后，结合模糊集和Dematel技术，通过乘以四个因素对十个最大风险进行排名：对项目的影响，发生概率，对其他风险的影响。为了证明所提出方法的功能，它被用于伊朗重要的大型安扎利港口的疏project工程。这项研究的结果被用来提出一个风险优先排序模型，该模型考虑了港口疏projects项目中复杂的风险交互作用。针对如何降低风险和加强安全措施提出了一些建议。