基于拓扑改变的地铁网络承载能力优化方法  

Subway Network Capacity Improvement Based on Topology Change

作　　者：孙磊[1] 李荣[2] 陈孝国[3] 

机构地区：[1]浙江建设职业技术学院经济管理系,杭州讲师311231 [2]浙江商业职业技术学院财金学院,杭州310053 [3]黑龙江科技大学理学院,哈尔滨150022

出　　处：《城市轨道交通研究》2016年第4期1-5,共5页Urban Mass Transit

摘　　要：基于复杂网络理论,提出一种利用拓扑结构改变策略来提高地铁网络承载能力的方法。首先,确定地铁网络的最大介数站点;其次,使得通过该站点的某条地铁线路在该站点越站运行;最后,以北京地铁网络进行仿真试验。结果表明:该策略下北京地铁网络最大介数站点的介数值大幅下降,各站点的介数分布得到优化。该方法有效提高了地铁网络的承载能力,但由于负荷的重新配置,有些地铁线路会出现客流量激增现象,需提早做好应对措施。Based on complex network theory,an approach to improve the capacity of subway network by usingthe strategy of topological structure change is proposed. Firstly,the site with the largest betweenness is determined; secondly,a subway line passing through this site is arranged to overtake the station; and finally,Beijing subway network is taken for simulation. Results show that the largest betweenness value of Beijing subway network is reduced dramatically under this strategy,and the betweenness distribution of all the sites is optimized. This method can improve the capacity of Beijing subway network,but due to the re-assignment of transport loads,surges in passenger traffic on some lines will certain happen,so necessary measures should be taken as early as possible.

关 键 词：地铁网络 承载能力 拓扑结构改变策略 

分 类 号：U292.5[交通运输工程—交通运输规划与管理] U231[交通运输工程—道路与铁道工程]