【摘要】 突发事件会威胁网络正常运营，为预防其对城市轨道交通网络结构造成影响，采用复杂网络相关理论研究轨道交通网络的脆弱性。首先，构建轨道交通网络拓扑结构，提出节点重要度和边重要度计算方法，识别轨道交通网络的关键节点和关键边并分析其特征。其次，以最大连通子图比和网络效率为脆弱性评价指标，分析轨道交通网络在节点攻击、边攻击和混合攻击三种攻击方式下的脆弱性。以北京轨道交通网络为例，探索轨道交通网络的脆弱性。结果表明：轨道交通网络关键节点和关键边连续失效会造成网络迅速崩溃。蓄意攻击对轨道交通网络的破坏程度显然大于随机攻击。相比传统的边攻击和节点攻击，混合攻击下轨道交通网络表现出较强的脆弱性。更多还原

【Abstract】 In order to prevent emergencies from affecting the structure of the urban rail transit network and threatening the normal operation of the network, the related theory of complex networks is used to study the vulnerability of the rail transit network.Firstly, the topology structure of rail transit network is constructed, and the calculation methods of node importance and edge importance are proposed to identify the key nodes and edges of rail transit network and analyze their characteristics.Secondly, using maximal connected subgraph and network efficiency as the vulnerability evaluation indicators, the vulnerability of the rail transit network under three attack strategies: node attack, edge attack and hybrid attack is analyzed.Finally, we take the Beijing rail transit network as an example to explore the vulnerability of the rail transit network.The research results show that the continuous failure of key nodes and key edges of the rail transit network will cause the network to collapse rapidly.The degree of damage to the rail transit network is obviously greater than that of random attacks.Compared with traditional edge attacks and node attacks, the rail transit network shows greater vulnerability under hybrid attacks更多还原