城市地铁网络系统的物理脆弱性研究

Analysis of Urban Metro Network System Physical Vulnerability

为降低城市地铁网络系统(UMNS)运行的物理脆弱性,在一般系统脆弱性分析的基础上,从模型构建、适用性分析和失效模式(FM)3个方面构建UMNS物理脆弱性分析技术方案。在深入分析UMNS物理系统特征的基础上,应用复杂网络理论构建UMNS的无权有向图模型,并借助于Pajek和R软件进行实证分析。结果表明:基于复杂网络理论的UMNS物理脆弱性分析是可行的;仿真结果能够反映UMNS的物理脆弱性与其物理拓扑结构的关系,并能用来定量分析UMNS的物理脆弱性;通过算例分析验证模型,能够找出城市地铁物理系统中的脆弱源。

In order to reduce the physical vulnerability in UMNS operation, on the basis of general sys- tem vulnerability analysis, a technical protocol for analyzing the vulnerability was worked out from three aspects. Based on characteristics of UMNS physical system and complex network theory, an un-weighted and directed graph model was built. Further on, the Pajek and R software were used to complete empirical analysis. The studies indicated that analysis is feasible and simulation results could reflect relationship be- tween UMNS physical vulnerability and network topology, and that critical physical vulnerability could be calculated quantitatively. The model was validated and vulnerable source could be identified through calculation.