顾及动态介数优先的城市路网抗毁性分析  

Invulnerability Analysis Method of Urban Road Network with Dynamic Betweenness Centrality Priority

作　　者：黄丞甫 刘刚[1,2] 牟标 HUANG Chengfu;LIU Gang;MOU Biao(School of Earth Sciences,Chengdu University of Technology,Chengdu,Sichuan 610059,China;State Key Laboratory of Geological Geohazard Prevention and Geo-environment Protection,Chengdu University of Technology,Chengdu,Sichuan 610059,China)

机构地区：[1]成都理工大学地球科学学院,四川成都610059 [2]地质灾害防治与地质环境保护国家重点实验室(成都理工大学),四川成都610059

出　　处：《宜宾学院学报》2022年第12期21-29,共9页Journal of Yibin University

基　　金：国家自然科学基金项目(41871303);四川省科技重点研发项目(2021YFG0365);地质灾害防治与地质环境保护国家重点实验室项目(SKLGP2018Z010);四川省自然资源厅项目(kj-2021-3)。

摘　　要：针对现有研究较少考虑路网在遭受攻击后中心性的变化,提出基于动态介数优先的公路网抗毁性分析方法:通过动态计算路网在遭受恶意攻击后网络介数中心性的变化,确保后续攻击目标始终是当前网络中最为重要的节点或者边;同时,引入网络整体效能指标,计算路网在随机攻击、静态介数优先和动态介数优先三种攻击策略下的网络整体效能.以某市路网为例检验其有效性,结果表明:相对于随机攻击,两种恶意攻击策略下路网更容易瘫痪;相对静态介数优先的恶意攻击,动态介数优先攻击策略能更快破坏整个路网;攻击关键道路和关键路口能更快使路网瘫痪.In view of the existing studies’rare consideration of the centrality change of road network after attack,a method in invulnerability analysis of road network with dynamic betweenness centrality(BC)priority is proposed:by calculating the changes of the BC of the road network dynamically after a targeted attack,it is ensured that the subsequent attack target is always the most important node or edge in the current network;besides,the global efficiency indicator is introduced to calculate the network performance of the road network under three attack strategies:random attack,static targeted attack with BC priority,and dynamic targeted attack with BC priority.A city road network is taken as an example to test the effectiveness of the method.The results show that the two targeted attack strategies are easier to paralyze the road network than random attacks strategy.Compared to the static targeted attack,the dynamic attack strategy destroys the entire road network faster;attacking key roads and key junctions can greatly paralyze the road network.

关 键 词：路网抗毁性 恶意攻击 动态介数优先 网络效能 

分 类 号：U491[交通运输工程—交通运输规划与管理]