城轨网络站点重要度评估与级联失效抗毁性分析  

Evaluation of station importance and cascading failure resistance analysis of urban rail transit network

作　　者：杨景峰 朱大鹏[1] 赵瑞琳 YANG Jingfeng;ZHU Dapeng;ZHAO Ruilin(School of Traffic and Transportation,Lanzhou Jiaotong University,Lanzhou Gansu 730070,China)

机构地区：[1]兰州交通大学交通运输学院,甘肃兰州730070

出　　处：《中国安全科学学报》2022年第8期161-167,共7页China Safety Science Journal

基　　金：国家自然科学基金资助(51765028);甘肃省自然科学基金资助(20JR5RA400)。

摘　　要：为保障城市轨道交通网络(URTN)在突发事件下的稳定性,基于复杂网络理论,研究URTN的拓扑特性和抗毁性。首先,采用Space L方法,构建北京、上海、深圳3大URTN的拓扑结构模型,对比分析URTN的拓扑特性;然后,结合站点度中心性和中介中心性建立重要性综合评价指标,挖掘URTN的关键站点;最后,建立URTN级联失效模型,设计级联失效仿真算法,定量分析不同攻击策略下URTN级联失效抗毁性。结果表明:无论是否有级联失效情况,相比蓄意攻击,URTN面对随机攻击时更具抗毁性;级联失效情况下考虑站点负载重分配的URTN更具脆弱性;重要站点失效导致的级联失效对网络的影响范围更广,对网络的整体破坏程度更大。In order to ensure stability of URTN in the event of emergencies,its topology and invulnerability were studied based on theory of complex networks.Firstly,topological structure model of URTN in three major cities of Beijing,Shanghai,and Shenzhen were constructed by using Space L method,and their topological characteristics were compared and analyzed.Secondly,comprehensive evaluation indexes of importance were developed considering station degree centrality and betweenness centrality so as identify key stations of URTN.Finally,a cascade failure model was established,simulation algorithm was designed,and cascade failure resistance of URTN under different attack strategies were quantitatively analyzed.The results show that regardless of whether there is cascade failure,URTN is more resilient to random attacks than deliberate attacks,while for the URTN which considers stations load redistribution in the case of cascading failure is more vulnerable.The cascading failure due to key station failures has a wider range of influence on the network,and the overall damage it causes is greater.

关 键 词：城市轨道交通网络(URTN) 复杂网络 级联失效 抗毁性 站点重要度 

分 类 号：X913.4[环境科学与工程—安全科学]