城市公交网络无标度特性实证分析

Empirical Analysis for Scale Free Characteristic of the Bus Network

以武汉市公交换乘网络为研究对象,对城市公交网络无标度特性进行实证分析。采用Space P方法构建了武汉市公交换乘网络,刻画了网络的拓扑结构,分析了网络度分布以及累计度分布。通过直线拟合,求出网络的幂率指数为2.12,实证结果表明城市公交换乘网络具有无标度特性。

To make empirical analysis on the scale free characteristic of the bus network,we do research on the Wuhan bus network.We use the Space P method to build Wuhan bus network,describe the topology of the network,and evaluate the powerlaw of the degree distribution.By fitting the line of the degree distribution,we can conclude that the bus network is scale free,while the powerlaw is 2.12.