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引用本文:乔珂,赵鹏,姚向明.???й????????????????[J].交通运输系统工程与信息,2012,12(4):115-121.
作者姓名:乔珂  赵鹏  姚向明
作者单位:?????????? ??????????????? 100044
基金项目:中央高校基本科研业务费专项资金资助项目(2011YJS037);国家科技支撑计划(2009BAG12A10-9)
摘    要:随着新线的建设,城市轨道交通网络规模不断扩大,不同时期的网络特征不同,以北京为例分析发展变化规律,可以为轨道交通网络化运营提供建议.根据复杂网络理论,首先对比了北京市轨道交通规划路网和目前运营路网的网络特征值,分析了特征值的变化规律,得出规划路网的平均度、聚集系数、平均最短距离等指标均有所增大,但由于服务半径扩大,网络效率略有下降.然后针对重要节点失效和线路失效,对比了失效后的网络弹性,并确定了网络中的重要节点.结果表明:节点失效和线路失效对规划路网的影响较小,部分车站的重要度随着网络完善而发生改变,对于运营路网,必须保障重要节点的可靠性.

关 键 词:???н??  ??????  ????????  ????????  ???絯??  
收稿时间:2011-12-28

Performance Analysis of Urban Rail Transit Network
QIAO Ke , ZHAO Peng , YAO Xiang-ming.Performance Analysis of Urban Rail Transit Network[J].Transportation Systems Engineering and Information,2012,12(4):115-121.
Authors:QIAO Ke  ZHAO Peng  YAO Xiang-ming
Institution:School of Traffic and Transportation, Beijing Jiaotong University, Beijing 100044, China
Abstract:With the construction of new lines,urban rail transit network continues to expand.It is beneficial for the smooth operations of urban rail transit network to analyze the network characteristics of different development periods and summarize the law of development.Based on the theory of complex networks,the paper first compares the characteristic values of Beijing urban rail transit plan network and current operating network and the variation of values.The results indicate that some indicators of plan network such as average degree,clustering coefficient and average shortest distance has increased.However,due to expansion of service radius,the network efficiency decreased slightly.Then,aiming at important nodes failure and line failure,the paper compares the network flexibility after node failure and line failure,and calibrates the key nodes in the network.The results show that the node and line failure have smaller impacts on the planning network.The fundamentality of some nodes changes with the network improvement.For current operating network,it is necessary to guarantee the reliability of key nodes.
Keywords:urban traffic  rail transit  network performance  complex networks  network flexibility
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