Risk Comprehensive Evaluation of an EMU Maintenance Depot in Safety

At present,China's EMU running speed has reached 350km/h,the EMU's security requirement is very high.As a premise of EMUS's security and reliable operation,an EMU maintenance depot is of great significance.The safety risks of the EMU maintenance depot should be analyzed comprehensively,and on this basis the safe condition of the EMU maintenance depot should be evaluated.This work could improve the depot security management ability and safety level.Based on investigation of the EMU maintenance depots on the spot and combined with the system engineering theory,an EMU maintenance depot safety risk hierarchy was established,in which the expert judgment information was expressed with the triangular fuzzy numbers,and the triangular fuzzy complementary judgment matrix of every hierarchy was established.According to the fuzzy analytic hierarchy process,the order of importance of the influence factors was worked out.Aiming at the fuzziness of the influence factors,a fuzzy comprehensive evaluation model was established,and the feasibility of the method was proved with an example.