基于攻击策略的城市轨道交通网络脆弱性研究  

On the Vulnerability of Urban Rail Transit Network Based on Different Attack Strategies

作　　者：袁若岑 王丽琼[2] 温志伟[1] 

机构地区：[1]北京市地铁运营有限公司地铁运营技术研发中心,北京102208 [2]北京理工大学爆炸科学与技术国家重点实验室,北京100081

出　　处：《城市轨道交通研究》2015年第8期57-61,共5页Urban Mass Transit

摘　　要：城市轨道交通网络脆弱性评估是当前网络研究中新的热点和难点。识别并量化网络脆弱性是应对城市轨道交通系统危机状况的关键性课题。根据北京地铁网络结构,结合城市轨道交通实际运营特点,构建了网络换乘模型。从线路与换乘通道重要度两个视角,采用不同攻击策略研究并量化了网络脆弱性。研究结果表明:采用网络有效性与网络连通度作为网络脆弱性的衡量指标,并把攻击前后的重要节点(边)网络特征值下降程度作为网络脆弱性衡量标准的评估方法简便易行,具有一定的理论与应用价值。Assessment of urban rail transit network vulnera-bility is a new hotspot and difficulty in current network re- search. In which, identifying and quantifying the network vulnerability is a critical issue to deal with the crisis of rail transit system. According to the subway network structure in Beijing, and combined with the actual rail transit opera- tion, a network transfer model is established. The network vulnerability is quantified from both the line and the trans-fer channel by using different attack strategy researches. Reseaches show that the network availability and the net-work connectivity could be defined as the network vulnera-bility metric, and the decline degree in the value of net-work characteristics before and after the removal of important nodes （edges） could be used as the network vulnerability metrics. The proposed network vulnerability assessment method is simple, which has certain theoretical and applicable values.

关 键 词：城市轨道交通 网络脆弱性 攻击策略 

分 类 号：U239.5[交通运输工程—道路与铁道工程]