Complex Network Construction,Characteristic Analysis And Important Nodes Identification Of Transportation Systems In Hubei Province

Transportation system is a kind of common complex system in human lives.For various transportation systems with large scale,different structures,and complex diversity,how to conduct a comprehensive investigation of a single transportation system and how to coordinate multiple transportation modes to form an efficient integrated transportation system are urgent issues of theoretical and practical significance.Wuhan Metro System in Hubei Province ranks among the top nationwide in terms of multiple data and is steadily developing.In addition,the express highways and railways in Hubei Province not only reach all the cities in the province,but also play an important role in connecting national express highways and railways.Based on the complex network theory,this paper takes the transportation systems in Hubei Province as the research object,and carries out the network construction,characteristic analysis and important nodes identification.The main research contents and innovation points are as follows.(1)For the Wuhan Metro transportation system in Hubei Province,this paper constructs the Wuhan Metro Space-L network reflecting the actual operation,the Space-P network reflecting the interchange relationship and the Space-R network reflecting the line situation,and then investigates comprehensively the characteristics of Wuhan Metro system.In the Space-L and Space-P networks,important stations are identified.The construction and maintenance of the important stations in both of these two networks are beneficial to guarantee the normal operation of the metro system and the travel efficiency of passengers.In the Space-R network,this paper introduces new lines according to the policy plan in 2020-2025,analyzes the structural changes of the network,and presents a few new line schemes to improve the network efficiency from the perspective of complex networks.(2)For the express highway and railway system in Hubei Province,this paper considers the heterogeneity of the nodes and the edges in the express highway layer and railway layer,and constructs an express highway-railway two-layer network in Hubei Province.This paper calculates the static statistics of urban nodes in different layers and two-layer network in Hubei Province and completes the importance ranking of urban nodes in the express highway layer,railway layer and two-layer network.These important nodes,for the most part,will become transportation hubs and traffic aggregators.The construction and maintenance of these important urban nodes and their connected edges are in favor of the robustness of the transportation network.