摘要
对城市公共交通网络结构的深入了解有助于更好的规划、设计与评价公交系统.运用复杂网络的研究方法对我国5个大城市的公交网络结构进行实证分析,统计了路长、群聚系数、度分布等物理量.结果表明网络结构近似于随机网络,不同于国外城市的无标度网络结构.通过分析各个统计量在城市交通中的实际意义,分析了可能造成这种差异的原因.
To make a better planning, design and evaluation for the public transport systems, it is necessary to make more profound studies for the structure of urban transit networks. The authors have analyzed statistical parameters including path-length, clustering coefficient and degree distribution of public transport networks in 5 Chinese cities. The structures of these networks approximate to random graphs, which does not exhibit the scale-free property as other countries. Through the analysis about the practical interpretation of those statistical parameters, the authors proposed some possible reasons to generate the structural differences between Chinese and other countries.
出处
《系统工程学报》
CSCD
北大核心
2007年第4期412-418,共7页
Journal of Systems Engineering
基金
国家自然科学基金资助项目(70671073)
国家"863"计划项目(2006AA11Z210)
关键词
城市交通
公交网络
随机网络
无标度
群聚系数
urban traffic
public transport network
random networks
scale-free
clustering coefficient
