城市轨道交通网络系统效率评价指标改进  

Enhancement of Evaluation Indicators for Urban Rail Transit Network System Efficiency

作　　者：彭挺 周涛 蔡晓禹[3] PENG Ting;ZHOU Tao;CAI Xiaoyu(School of Traffic&Transportation,Chongqing Jiaotong University,Chongqing 400074,China;Chongqing Transport Planning Institute,Chongqing 401147,China;School of Smart City,Chongqing Jiaotong University,Chongqing 400074,China)

机构地区：[1]重庆交通大学交通运输学院,重庆400074 [2]重庆市交通规划研究院,重庆401147 [3]重庆交通大学智慧城市学院,重庆400074

出　　处：《铁道运输与经济》2024年第1期147-154,共8页Railway Transport and Economy

基　　金：住房和城乡建设部科技计划项目(2018-R2-014)。

摘　　要：为提高城市轨道交通网络系统效率评价指标的可比性和完备性,引入有效行程速度和有效客流密度的概念,改进了网络系统效率评价指标,并以重庆市中心城区2017年和2019年运营的城市轨道交通线网为例验证了改进后评价指标的科学性和可操作性。研究表明:既有评价指标由于显著受到线网服务范围的影响,且未体现网络的投入产出效率,无法直接作为网络结构优化的目标函数;改进后的系统效率评价指标能够综合反映剔除线网服务范围影响后的网络结构性能和投入产出效率,且存在理论上的最优值;平衡网络中节点换乘时间和路段行程时间,并适度加密城市核心区域的轨道交通线路和站点,是持续提升网络系统效率的2个重要手段。In order to improve the comparability and completeness of evaluation indicators for urban rail transit network system efficiency,the concepts of effective travel speed and effective passenger flow density were introduced,leading to the refinement of the evaluation indicators for network system efficiency.Taking the rail transit network operated in the central urban area of Chongqing in 2017 and 2019 as an example,this research verified the scientific and operational validity of the improved evaluation indicators.The research shows that the existing evaluation indicators are significantly influenced by the service coverage of the network and fail to reflect the network's input-output efficiency directly.As a result,they cannot be used as objective functions for optimizing network structure.On the other hand,the improved global efficiency evaluation indicators can comprehensively reflect the network structure performance after excluding the impact of network service scope and the input-output efficiency and has the theoretical optimal value.Balancing the node transfer time and road travel time,and appropriately densifying the rail transit lines and stations in the core area of the city are two important means to continuously improve the global efficiency of network.

关 键 词：轨道交通网络 系统效率 有效行程速度 有效客流密度 线网服务范围 网络结构性能 投入产出效率 

分 类 号：U231[交通运输工程—道路与铁道工程]