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为保证地铁网络的安全运行,降低突发事件后果的严重性,从事故后能相互到达的站点数、破坏站点会对整条线路带来的影响2个角度,构建地铁网络脆弱性评价模型。运用Matlab仿真模拟破坏性事件的攻击过程,结合5种地铁网络类型,通过与已有研究结果对比,分析不同评价方法和网络类型下地铁网络脆弱性的差异。研究表明:某个站点的失效对整条线路造成影响,进而影响整个地铁网络的脆弱性;地铁网络对于节点介数的蓄意攻击有较大脆弱性;不同的地铁网络结构类型对攻击表现出不同的脆弱性。
In order to ensure the safe operation of the subway network and reduce the seriousness of the consequences of the emergency, the evaluation model of the vulnerability of the subway network is constructed from the following two points: the number of sites that can reach each other after the accident and the impact that the site will have on the entire route. By using Matlab simulation to simulate the attack process of destructive events, this paper analyzes the differences of metro network vulnerability under different evaluation methods and network types by comparing with the five metro network types and comparing with the existing research results. The research shows that the failure of one station has an impact on the whole route, and then affects the vulnerability of the entire metro network. The metro network is more vulnerable to the deliberate attacks on the node mediation. The different metro network structure types show different attacks Vulnerability.