基于复杂网络理论的城市交通网络结构特征  

Structure characteristic of urban composite traffic network based on complex network theory

作　　者：宗跃光[1] 陈眉舞[1] 杨伟[1] 马强[1] 

机构地区：[1]南京大学城市与区域规划系,南京210093

出　　处：《吉林大学学报（工学版）》2009年第4期910-915,共6页Journal of Jilin University:Engineering and Technology Edition

基　　金：'863'国家高技术研究发展计划项目(2007AA12Z235);国家自然科学基金项目(40471058)

摘　　要：以复杂网络理论和B-A模型为基础,统计和分层解析了南京主城区复合交通网络特征,研究表明:城市复合交通网络由随机网络和无尺度网络共同组成,从而可以实现随机网络的稳定性、可达性和无尺度网络的高效性、成长性的优势互补;经过等级调整后出现的B-A模型中的γ=3的幂次分布,符合无尺度网络结构的基本特征;交通网络复合化的增长包括自下而上和自上而下的双向增长过程。Based on the complex network theory and the Barabasi-Albert model （B-A model）, the characteristics of the composite traffic network in the main urban area of Nanjing city, Jiangsu province, China, were analyzed statistically and hierarchially, i. e. taking the road system classification into consideration. The simulation results demonstrate that the urban composite traffic network consists of both the random network and the scale-free network. Therefore, it is possible to realize the advantage complementarity of the stability and the accessibility of the random network and the efficiency and the growability of the scale free network. The power distribution of γ=3 in the BA model obtained by adjusting the grade of node-edge in the arterial road conforms to the basic characteristic of the scale-free network. Specially, the composite growth and preferential attachment process of the urban traffic network in Nanjing occurs both from bottom to top and from top to bottom in the network.

关 键 词：交通运输系统工程 复杂网络理论 随机网络 无尺度网络 复合交通网络 B-A模型 

分 类 号：U491[交通运输工程—交通运输规划与管理] N94[交通运输工程—道路与铁道工程]