关键词: 城市群, 交通网络, 小世界性, 无标度性

Abstract:

In order to research properties of traffic network of urban agglomerations, We design the model of Urban Agglomeration by primal approach to describle the Changsha traffic network, the Zhuzhou traffic network, the Xiangtan traffic network, the CZT city traffic network, the CZT city and town traffic network, the CZT city and town traffic network. We use Matlab and VC++6.0 to figure out averageddegree, averagedclustering coefficient, betweenness centrality of roads with degree and structure entropy based on node betweenness centrality, global coefficient. The results show that (1) traffic networks have smallworld behavior but no scalefree property (2) traffic networks have not scalefree and random property, (3) the global coefficient of the CZT city traffic network is greatest and the entropy of the CZT city and town traffic network is smallest, which show it is in order.

Key words: urban agglomeration;traffic network;smallworld property;scalefree property