Research On Risk Assessment Method Of Subway Operation Based On Cloud Model

In view of the deficiency of the existing risk assessment method for subway operation, the new risk assessment method based on cloud model is studied. Firstly, risk assessment indicator system of the subway operation is improved from five aspects: safety management, operating management, equipment and facilities, environment factors and occupational adaptability. Secondly, three key problems are considered: (1)standard risk cloud generator is determined; (2)cloud weighted average aggregation (CWA)operator is defined; (3)Calculating method of risk comprehensive assessment cloud of subway operation is proposed. Thirdly, taking certain subway line as research object, the proposed method is used to evaluate risk of the subway line. Finally, The results show that the method is feasible and reasonable.