摘要
为科学管理危险品运输,本文基于元胞自动机(CA)理论,结合节点负载重分配策略,研究了城市危险品运输网络节点失效传递的动力学行为。研究表明该模型能反映危险品运输网络节点失效的平均传递趋势及规模,能有效辨识网络中关键节点,具有可行性和准确性;加强对关键节点的保护力度,适当提高节点承载力,增强节点自我恢复能力可降低节点失效对危险品运输网络失效传递规模的影响。
To scientifically manage the transportation of hazardous materials,node load redistribution strategy was combined with the cellular automata(CA)theory to observe the transmission characteristics of urban hazardous materials transportation network(HMTN)nodes.Results show that the CA model can reflect the average transmission trend and scale of the failure of HMTN nodes and effectively identify key nodes in the network;furthermore,it is feasible and accurate.By strengthening the protection of key nodes and improving the bearing capacity and self-recovering ability of the nodes,the impact of failed nodes on the failure transmission scale of the HMTN can be reduced.
作者
何春燕
张凌煊
李静
李林卿
HE Chun-yan;ZHANG Ling-xuan;LI Jing;LI Lin-qing(School of Transportation and Logistics,Southwest Jiaotong University,Chengdu 611756,China;Market Monitoring and Evaluation Center of National Railway Administration,Beijing 100070,China)
出处
《交通运输工程与信息学报》
2020年第3期133-141,共9页
Journal of Transportation Engineering and Information
关键词
公路运输
节点失效
元胞自动机(CA)
危险品运输网络
传递
highway transportation
node failure
cellular automata(CA)
hazardous materials transportation network
transmission
