Characteristics Analysis Of Railway Passenger Transport Network And Application Of Regional Planning For Emergency Rescue Sites Based On Complex Network Theory

With the constant construction of our country‘s infrastructure,the railway system has been increasingly perfected.At present,we have formed a ?eight vertical and eight horizontal? layout plan.As one of the main components of the transportation system,the railway passenger transport network is closely related to social and economic development and people‘s daily travel.In the event of an unexpected incident,it will cause the railway passenger transport network to suffer various degrees of damage,even paralysis,causing huge losses.Therefore,it is of great significance to guarantee the safe operation of the railway passenger transport network.As a typical and open transportation system,the internal structure and operating rules of the railway passenger transport network has become increasingly complex with the expansion of railway network.The traditional emergency measures for railways focus on the analysis of emergency management systems and mechanisms,personnel evacuation,location of rescue bases,and deployment of resources.Little attention has been given to the ever-changing railway network structure,and the study of railway passenger transport networks has been conducted from the perspective of network topology.Research can provide a new reference for railway emergency management and rescue.This paper uses the complex network theory to analyze the characteristics of the national railway passenger transport network.Its main work and research conclusions are as follows:(1)Introduced the basic theory of complex networks,and based on this,analyzed the topological structure of the railway passenger transport network.Through the analysis of relevant statistical parameters,it is found that the railway passenger transportation network covers a wide range,the connections between stations are reasonable,the number of departures is frequent,and the layout presents a regional feature;at the same time,the railway unweighted passenger transport network presents small world and scale-free features without considering the influence of weights.(2)Taking the railway unweighted-and-directed passenger transport network as an example,the simulation analysis of the robustness of the railway passenger transport network shows that the railway passenger transport network structure is robust against random attacks and vulnerable to deliberate attacks.Stations with large betweenness are more likely to make the railway network collapse than stations with large degree when deliberate attack occurs,and to some extent that reflects the importance of stations with large degree and betweenness in the railway network,providing a reference for railway emergency management.(3)Based on the theory of complex network,a method for assessing the importance of railway stations was proposed,the importance index of the stations was defined.And use this method in the national railway passenger transport network to obtain 33 important stations and analyze the distribution of these stations,finally some suggestions on the regional planning and construction of railway emergency rescues sites were given.