Research On The Transmission Path Of Safety Risk Of Intergrated Transportation Hub

As an important node of transportation network,intergrated transportation hubs not only play a part in the transport function,but also the corresponding urban service function.It is not only the junction of urban and inter-city traffic modes,but also the collection of transportation,leisure,sightseeing and other functions.The advantages of intergrated transport hubs are becoming more and more obvious.With the rapid development of national transport industry,the construction of intergrated transport hubs are expedite,and local governments have actively promoted the construction of intergrated transport hub,hoping to rely on its advantages to develop regional economy.When people pay too much attention to the economic growth brought about by the integrated transport hub,they ignore the security risks increasing rapidly.Compared with single-function hubs,large-scale integrated transportation hubs are more complex,in which the transmission and change of risk will bring greater losses to the system,and because of the characteristics of complex system,new risks emerge.Although there are foundations for the study of safety risk,the research on process control of safety risk needs to be more in-depth and more research methods of risk should be introduced in the study about integrated transportation hubs.The purpose of this paper is to propose a safety risk prevention strategy based on the risk transmission path,through the study of the safety risk transmission path of integrated transport hub.In this paper,the establishment of the model mainly uses the method of system engineering--Structural Equation Model andFunctional Resonance Analysis Method,and the research adopt methods as expert method,literature analysis,data research,questionnaire survey,accident tree analysis and so on.Based on the safety risk theory and system engineering method,this paper divides the comprehensive transportation hub into four kinds of subsystems through the safety risk system analysis.By analyzing the safety accident cases of integrated traffic hubs,23 risk factors affecting the operation safety were identified.Safety risk factor is the basic unit of research.Structural equation model help us getting the covariant relations between subsystems,and the effects between factors.Through the results we can select that the key factor of personnel subsystem is the ftont-line staff,the key factor of equipment subsystem is comprehensive monitoring system,the key factor of environment subsystem is the station square,the key factor of the management subsystem is the safe funding.Using functional resonance analysis method to further study of the influence path and effect among factors,the risk transmission path model of risk sources in the operation process is established,and the subsystem management strategy,critical path optimization strategy and path classification management based on path influence are proposed.The method of functional resonance analysis avoids the problem that the SEM is too complex and the error adjustment is too complicated in the analysis process for covariant relationship of more than 20 factors.Moreover,the advantage of functional resonance analysis method(FRAM)is that it can classify the path relationship.According to the research results,this paper proposes a safety risk control strategy based on critical path,which can provide a reference for safety risk management of integrated transportation hubs.The significance of this paper is to put forward the safety risk control strategy based on critical path,taking the safety risk transmission path as the breakthrough point,so as to provide reference for the safety risk management of integrated transportation hub.