Research on the characteristics and vulnerability of complex high-speed railway network
In order to study the network characteristics and vulnerability of high-speed railway in China,the model of high-speed railway network was constructed by using complex network theory and its characteristics were analyzed.Through Pajek,the network characteristics indicators such as node degree,average path length,clustering coefficient,intermediary centrality were calculated and analyzed.The improved formula of node importance was used to mine the important node city,then,random attacks and deliberate attacks were carried out on the high-speed railway network of China,and the vulnerability of the network was analyzed by the network efficiency and the relative size of the maximum connected subgraph.The network shows good connectivity under random attack and vulnerability under intentional attack.To enhance the invulnerability of the high-speed railway network by strengthening the connectivity of the important node cities could better guarantee the stability and reliability of the high-speed railway operation in China and further promote the development of regional economy and society.
NETL
NSTL
万方数据
