一个客运复合交通网动力学模型

A Dynamic Model of Passenger Transport Combined Network

建议了一个包括公路、铁路、河流航运以及航空客运的复合客运网动力学模型。模型认为网络的节点(城市)数固定,节点之间的连边(某种交通工具的车次)数增加。加边的概率依赖于两个城市之间该种交通工具的客流量(边权)以及两个城市的点权(GDP和人口),并且客流量与GDP、人口之间存在一定的关系。由此模型进行数值模拟得到的网络拓扑统计性质与实证结果基本符合。

This article proposes a dynamic model of passenger transport combined network, which includes inter-urban bus network, railway network, river transport network and airplane network. The model permits the number of nodes （cities） fixed, and the number of the edges （ the vehicle number of a kind of transportation tools） between cities increased. The probability of the edge increasing depends on the edge weight （the passenger flux of the transportation tool） and the node weight （GDP and popula- tion） of the two cities. The passenger flux and the GDP and population satisfy certain relationship as well. The simulated network topological properties by the model shows a rather good agreement with our empirical investigated conclusions.