Conducting railway passenger transportation safety evaluation is important for passenger transport safety and travel satisfaction. From five dimensions affecting travel safety, this paper constructed an indicator system that covered 16 indicators of safety evaluation of railway passenger transport. It elaborated on the evaluation principle of the cloud model and simulated a cloud image where the number of cloud drops gradually increased from 1 000 to 10 000. Then, the process of determining indicator weights by the improved CRITIC method was discussed and compared with the traditional one to analyze the advantages of the improved version. Then, it proposed steps for evaluating railway passenger transport safety based on the improved CRITIC method and cloud model. The model was validated through a set of examples. The weights of evaluation indicators and important parameters of the evaluation cloud in the element layer and indicator layer were calculated, resulting in the evaluation cloud for railway passenger transport safety. The research results indicate that the improved CRITIC method and cloud model have strong feasibility and applicability, enriching the evaluation methods for railway passenger transport safety. The evaluation results can provide theoretical reference and empirical basis for regulatory authorities.
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