| The subway has confined space and traffic is large,running fast.In the process of subway operation,there will be many dangerous factors,which will pose a certain threat to people's lives and property safety.In recent years,the operation accidents of city subway at home and abroad indicate that operation safety is the lifeline of city subway.It is of great practical significance to evaluate the operational safety of subway by using practical methods to find out the hidden dangers and prevent the occurrence of subway operation accidents.On the basis of summarizing the human factors,management factors,equipment factors and environmental factors that affect the safe operation of the subway,a new evaluation index is established from the aspects of passenger factors,management factors,equipment factors,fire factors and disaster factors.The weight of the factors is calculated,combing with the single factor evaluation matrix and the "multiplicative-bounded" operator is used to calculate the single factor membership degree,then the fuzzy comprehensive evaluation model is constructed.The method of system dynamics is used to analyze the factors that affect the safe operation of the subway.The simulation model of the weight of the subway safety operation is established by Vensim software.The feasibility of the evaluation is improved by establishing a reasonable and reliability simulation model.Finally,the fuzzy comprehensive evaluation model is applied to the evaluation of Zhengzhou Metro Line 1,and it is concluded that the Zhengzhou Metro Line 1 is very safe.According to the existing problems,the corresponding advice is put forward from the five aspects. |
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