拥堵情境下国际铁路货运网络关键节点识别  

Key Node Identification of International Railway Freight Network under Congestion Situation

作　　者：陈思[1,2,3] 梁玥 汤银英[1] CHEN Si;LIANG Yue;TANG Yinying(Department of Transportation and Logistics,Southwest Jiaotong University,Chengdu 610031,China;National United Engineering Laboratory of Integrated and Intelligent Transportation,Southwest Jiaotong University,Chengdu 610031,China;National Engineering Laboratory of Integrated Transportation Big Data Application Technology,Southwest Jiaotong University,Chengdu 610031,China)

机构地区：[1]西南交通大学交通运输与物流学院,四川成都610031 [2]西南交通大学综合交通运输智能化国家地方联合工程实验室,四川成都610031 [3]西南交通大学综合交通大数据应用技术国家工程实验室,四川成都610031

出　　处：《综合运输》2022年第4期129-136,共8页China Transportation Review

基　　金：教育部人文社会科学研究西部青年基金项目(16XJCZH001);国家铁路局运输监督管理司技术服务项目(Q113621S06001);成都市软科学研究项目(2020-RK00-00071-ZF)。

摘　　要：为有效识别拥堵情景下国际铁路货运网络中的拥堵、连接影响关键节点,利用赋权PageRank方法,建立了拥堵赋权影响下的货运网络模型,设计了基于拥堵的关键节点识别算法,并根据各节点对拥堵变化情况的反馈差异,获取了拥堵、连接影响正负反馈关键节点。以中欧班列2020年9-12月货运网络为算例对算法进行了验证,结果表明该算法兼顾运输网络拓扑结构特征及拥堵在网络中的传播影响,可有效识别网络中的拥堵影响、连接影响正负反馈关键节点,可为国际铁路货运网络在运输过程中的运作及运营把控提供理论依据。In order to effectively identify the congestion and connection-affected key nodes in the international railway freight network under the congestion situation, the weighted PageRank method was used to establish an freight network model under the influence of congestion weighting, and the key node identification algorithm based on congestion was designed, and based on the feedback difference of each node on the change of congestion is obtained, and the key nodes of positive and negative feedback of congestion and connection influence are obtained. The algorithm was verified by taking the freight network of China Railway Express from September to December 2020 as an example. The results show that the algorithm takes into account the characteristics of the transportation network topology and the spread of congestion in the network, and can effectively identify the impact of congestion in the network. Connecting key nodes that affect positive and negative feedback can provide a theoretical basis for the operation and control of the international railway freight network during transportation.

关 键 词：国际铁路货运网络 拥堵赋权 赋权PageRank 节点识别 中欧班列 

分 类 号：X928.04[环境科学与工程—安全科学]