基于客流的地铁网络节点重要度评价方法

Evaluation method of node importance of subway network based on passenger flow

为定量分析地铁车站的重要性,建立考虑时间变化的网络节点评价模型,将地铁线路结构和始发站至目的站的客流数据分别抽象为物理网络和客流网络,分析2种网络对节点重要度的影响情况,进而给出基于客流的地铁网络节点重要度的定义和评价方法。利用该方法对成都地铁156个节点的重要度进行计算分析,结果表明:成都地铁网络中重要度排名前10的车站有省体育馆、中医大省医、火车南站、成都东客站、一品天下和文化宫6个换乘站,高新、金融城、孵化园和锦城广场4个中间站。通过不同攻击策略下网络测度指标的变化结果验证了评价方法的有效性。

In order to get the quantitative analysis of the importance of subway stations,a network evaluation model considering time variation is proposed when the structure of metro lines and OD data of passenger flow are abstracted into physical network and passenger flow network respectively.The influence of the two networks on the importance of nodes is analyzed,and the accurate definition and evaluation algorithm of the importance of nodes based on passenger flow are given.The importance of 156 nodes of Chengdu′s metro networks is calculated and analyzed using the method.The results show that the top 10 stations in Chengdu metro networks are six transfer stations,including Provincial Gymnasium,Provincial Medicine of Traditional Chinese Medicine,South Railway Station,Chengdu East Railway Station,Yipintianxia and Cultural Palace,and four intermediate stations,including High-tech,Financial City,Incubation Park and Jincheng Square.The effectiveness of the evaluation method is verified by the change results of network measurement indexes by means of different attack strategies.