The Influence Factor Of Urban Rail Transit System Reliability

Because urban railway system are accident and dangerous,in order to ensure the security of passengers choose their travel on time and destination,it is necessary to identify factors affecting the reliability of urban railway system.Scientific and effective measures are based on the influence degree and the method to improve the reliability of urban mass transit system.Based the feature,shortage and applicable condition of the five types of events theory for accident causal chain theory,the energy releasing theory,the model of systematic theory,the dynamic variation theory,orbit intersecting theory,this paper put forward the analysis model for the unreliability of urban rail transit system.Analysis of the typical urban rail transit system is not reliable and identify personnel facilities and subsystem environment management and other five aspects including 20 factors affecting the reliability of urban rail transit system.From the perspective of system,it integrates the DEMATEL,ISM and ANP system analysis model and has been identified urban rail transit system reliability quantitative influence factors weight calculation.The DEMATEL model is used to determine the relationship between urban rail transit system reliability factors;Using the ISM model to factor hierarchy analysis,size is divided into four categories according to the driving force and dependence factors that drive,connecting factors,isolated and rely on factors;ANP model is applied to estimate the impact factors of urban rail transit system reliability.The results show that the impact of urban rail transit system reliability fundamental factors is daily inspection,repair and maintenance in a timely manner;Facilities aging;Security system and the lack of rules and missing or implement;Staff professional quality is not strong,the instability is abnormal condition,equipment,facilities,subsystem work subsystem of poor stability,insufficient facilities configuration,large passenger flow.Using Gephi software described 20 urban rail transit system reliability factors affecting the drive,the connection weight network structure,isolation,rely on four levels,more values to express the effects of various factors on urban rail transit system reliability degree and the relationship between factors of size.Factors affecting reliability of urban rail transit the result of the qualitative and quantitative analysis,from the personnel,equipment,facilities and subsystem,environment,management four aspects put forward Suggestions for the improvement of urban rail transit system reliability.