城市道路网络的中介中心性分析

基金项目: 国家教育部博士点专项基金资助项目(20070486001)；国家自然科学基金重点资助项目(40830530)；国家自然科学基金资助项目(60872132,40871185)；国家教育部重点资助项目(108085)；国家863计划资助项目(2007AA12Z241)

详细信息

Betweenness Centrality Analysis for Urban Road Networks

¹State Key Laboratory of Information Engineering in Surveying,Mapping and Remote Sensing, Wuhan University,129 Luoyu Road,Wuhan 430079,China;²Transportation Research Center,Wuhan University,129 Luoyu Road,Wuhan 430079,China

Funds: 国家教育部博士点专项基金资助项目(20070486001)；国家自然科学基金重点资助项目(40830530)；国家自然科学基金资助项目(60872132,40871185)；国家教育部重点资助项目(108085)；国家863计划资助项目(2007AA12Z241)

摘要: 将几个典型城市道路网络作为有向图来分析,这些城市道路网络弧段的BC(betweenness centrality)值的分布呈现一致的规律分布,具有层级性。从总体上来看城市道路网络中大部分等级高的道路具有较高的BC值,大部分等级低的道路具有较低的BC值。
- 道路网路 /
- 中介中心性 /
- 空间分析
Abstract: The spatial distribution of road networks is a fundamental issue in spatial analysis of GIS for Transportation.Betweenness Centrality is extensively used to evaluate the importance of nodes for the analysis of complicated networks.In this paper,six typical urban road networks were selected and transformed to direct graphs for the analysis of betweenness centrality.The results show that the distribution of betweenness centrality shows consistency and has a hierarchical property.The statistical results of betweenness centrality illustrates that the majority of road segments in high administrative levels characterize high value while the majority of road segments in low administrative levels have low value in urban road networks.The experimental results show that there is a correlation between the Betweenness Centrality hierarchy in mathematical measure and the administrative levels.
- urban road network /
- betweenness centrality /
- spatial analysis