Research On Passenger Transport Mode Of High-Speed Railway Network Based On Travel Choice

With the development of China’s high-speed railway network,the travel demand of passengers is growing steadily.High-quality,diversified and personalized demand is increasing,and the complexity of passenger flow will be far greater than before.In order to adapt to the change,it is necessary to study a more scientific,economic and reasonable scheme of high-speed railway network passenger transport.Taking high-speed railway network as the research object,based on the theory of optimization,travel behavior and complex network,combined with statistical analysis,mathematical modeling and other methods,this paper proposes the network passenger transport mode method based on travel choice,which solves the problem of passenger transport under the condition of network formation.The main contributions and achievements of this paper are as follows:(1)Analysis of direct and intermediate transfer modes.This paper analyzes the differences and applicable conditions of passenger transport modes based on the direct and intermediate ones.Furthermore,we study the passenger travel choice behavior based on travel chain.The utility function is constructed by using the quantitative values of six traffic service attributes of safety,economy,rapidity,convenience,comfort and reliability,and the quantitative description of passenger flow changes in different transportation modes are realized by improved MNL model.(2)High-speed railway passenger transport network analysis based on complex network theory.Firstly,according to the complex network theory,the nodes and connecting edges of high-speed railway passenger transport network are defined,and the undirected and unweighted network topology is constructed in P space by using Pajek software.Secondly,by using degree and degree distribution,network diameter and average path length,cluster coefficient,this paper empirically analyzes the structural characteristics of China’s high-speed railway complex network.The results show that the network is a complex one with scale-free network characteristics and small world network characteristics.Finally,a network node measurement method based on entropy weight TOPSIS algorithm is proposed to identify the core nodes of the network accurately.(3)High-speed railway network passenger transport mode.Firstly,based on the difficulties of passenger transport in high-speed railway network,the paper proposes the selection method of transfer and ride scheme in high-speed railway network considering network centrality,which simplifies the complexity of network passenger transport scheme optimization.Secondly,aiming at the lowest generalized travel cost of all passengers in the network and the highest operating income of railway enterprises,the optimization model of passenger transport scheme of high-speed railway network is constructed.Finally,the research process of high-speed railway network passenger transport mode based on travel choice is proposed.(4)The case study of high-speed railway network passenger transport mode.Taking the network of 22 core cities of high-speed railway passenger transport network,such as Beijing and Shanghai,this paper conducts a case study according to the research process of network passenger transport mode,and analyzes two scenarios of fully connected and partially connected network.Results show that the transfer function of urban nodes in high-speed railway network,such as Beijing,Xi’an,Wuhan,Guangzhou and Zhengzhou,are more prominent.In the future,China’s high-speed railway network planning will tend to develop with high coverage and high accessibility.Priority should be given to the opening of direct trains including Guangzhou Shenyang,Lanzhou Xiamen,Qingdao Shenzhen and other 21 sections.The results show that the research method and model of high-speed railway network passenger transport mode based on travel choice is effective.