摘要
为研究城市轨道交通网络的拓扑特性和抗毁性,根据复杂网络理论,构建城市轨道交通复杂网络模型。根据节点的度数、介数、聚类系数、网络直径和平均路径长度等拓扑指标,分析网络的小世界和无标度特性。以网络效率和网络连通度作为表征指标,从随机失效和蓄意破坏两个角度分析网络的抗毁性。以某市不同时期轨道交通线网为例,对比分析该市现阶段城轨线网和新规划城轨线网的拓扑特性和抗毁性。结果表明:相对于随机失效,蓄意破坏更容易导致网络崩溃;相对于最大度破坏,最大介数破坏更容易导致网络崩溃,应优先将介数最大的节点作为关键节点加强保护。同时,与既有城轨线网相比,新规划线网的连通性、出行便捷性、出行效率与抗毁性均有所提高。
To study the topological characteristics and robustness of urban rail transit networks,a complex network model of urban rail transit was established based on complex network theory.Using topological indicators such as node degree,betweenness,clustering coefficient,network diameter,and average path length,the small-world and scale-free characteristics of the network were examined.With network efficiency and connectivity as characterization indicators,the network robustness was analyzed from the perspectives of random failure and deliberate attack.Taking the urban rail transit networks of a specific city at different periods as an example,the topological characteristics and robustness of its existing and newly planned urban rail transit networks were compared and analyzed.The results showed that deliberate attacks were more likely to lead to network collapse than random failure.Compared to maximum degree attack,maximum betweenness attack was more likely to cause network collapse,suggesting that nodes with the highest betweenness should be prioritized as key nodes for protection.Furthermore,compared to the existing urban rail transit network,the newly planned network exhibited improved connectivity,travel convenience,travel efficiency,and robustness.
作者
李僖
马亮
郭进
应文淇
LI Xi;MA Liang;GUO Jin;YING Wenqi(School of Information Science and Technology,Southwest Jiaotong University,Chengdu 611756,China;The Center of National Railway Intelligent Transportation System Engineering and Technology,Beijing 100081,China;Sichuan Engineering Research Center of Train Operation Control Technology,Chengdu 611756,China)
出处
《铁道标准设计》
北大核心
2025年第7期39-45,共7页
Railway Standard Design
基金
四川省自然科学基金面上项目(2022NSFSC0466)
中国国家铁路集团有限公司科技研究开发计划项目(L2021X001)。
关键词
城市轨道交通线网
复杂网络
抗毁性
随机失效
蓄意破坏
urban rail transit network
complex network
robustness
random failure
deliberate attack
