Study On The Influence Factors Of Metro Electric Fire Under The Perspective Of Vulnerability

Urban rail transit system with its high efficiency,convenient,fast and other characteristics,is increasingly becoming the main means to ease the pressure of the major cities in China.Especially with the rapid development of China's economy and society,the era of large-scale construction of the subway is already coming.However,with the continuous increase in the number of subway operators,the size of the network continues to expand,how to protect the safety of the subway is becoming a difficult problem for managers.In all metro operation accidents,the highest share of fire accidents,the greatest impact,and when we further subdivided,can be found in all types of fire due to the fire in the highest proportion of the fire type.Therefore,it is urgent to study the cause of subway electrical fire.This study from the perspective of vulnerability,using the method of system analysis,to explore the relationship between the electrical fire impact factor;using the interpretation structure model,from the subway electrical fire causes are indirect causes and deep-seated reasons,direct cause;applying the theory and method of system dynamics,a system dynamics model of factor the influence of the subway system for electrical fire.Simulation for subway electric fire factor,analysis and comparison of various decision results,explored the best decision model for subway electric fire control.The innovation points of this research are as follows:?Through the subway electric fire accident and the expert questionnaire survey,the influence factor of Metro electric fire was screened out.Based on the theory of vulnerability,the influence factors of subway electric fire are divided into four subsystems,which will further reveal the causal relationship between the factors and the influence factors.? Using the interpretation structure model,will influence the electrical fire factors that affect the level of division of subway,electrical fire direct and indirect and deep reasons,enriched the subway electrical fire accident analysis method.?Based on the system dynamics theory,the simulation model is built.Using Vensim software,the development trend of the electrical system safety level of a subway station is obtained.Through the analysis and comparison of different investment strategies,the best investment plan is obtained,which provides scientific decision-making basis for safety management of subway operators.