城市路网的复杂网络特性及可靠性仿真分析

Complex Network Property and Reliability Simulation Analysis of Urban Street Networks

首先通过在路网中引进网络平均距离、节点度分布以及簇系数等概念,重点研究了城市路网映射后的复杂网络特征,以合肥市路网为例进行了实证研究。在此基础上,尝试运用复杂网络理论探讨城市路网可靠性,并以合肥市路网为例,进行了路网选择性攻击和随机失效条件下的可靠性仿真分析,其结果表明路网展现出完全不同的鲁棒性。将复杂网络理论应用到城市路网分析,进一步拓展了城市交通网络基础理论的研究思路和研究范围。

The concepts of average path length,clustering coefficient and degree distribution were firstly introduced into road network analysis;the property of complex network mapping from road network was studied and the road network of Heifei city was demonstrated as an example.Based on the analysis,the reliability of urban road network was discussed by applying complex network theory and Heifei city was taken as an example to simulate and analyze the reliability of road network under selective attacks and random failures,and theirs results show that the road network exhibits different robustness against different failures.The application of the complex network theory into the analyses of urban road networks may extend the research method on urban road networks.