基于城市交通拥塞的区域路网服务退化指数研究  

Degradation Index of Regional Network Service Based on Urban Traffic Congestion

作　　者：胡立伟[1] 孟玲 祁首铭 张亚平[2] 罗振武 HU Liwei;MENG Ling;QI Shouming;ZHANG Yaping;LUO Zhenwu(School of Transportation Engineering,Kunming University of Science and Technology,Kunming 650500,Yunnan,P.R.China;School of Transportation Science and Engineering,Harbin Institute of Technology,Harbin 150090,Heilongjiang,P.R.China)

机构地区：[1]昆明理工大学交通工程学院,云南昆明650500 [2]哈尔滨工业大学交通科学与工程学院,黑龙江哈尔滨150090

出　　处：《重庆交通大学学报（自然科学版）》2018年第12期92-97,共6页Journal of Chongqing Jiaotong University(Natural Science)

基　　金：国家自然科学基金项目(61863019);国家重点研发计划课题项目(2017YFC0803901);道路交通安全公安部重点实验室开放课题项目(2015ZDSYSKFKT06-1);陆地交通气象灾害防治技术国家工程实验室开放基金项目(NELJA201605)

摘　　要：根据拥塞核的辐射力划分了交通拥塞的状态,提出了区域路网服务退化指数(SDI)的概念,基于改进的层次分析模型(AHM),选取即时交通饱和度、拥堵延时指数、自由度、交通量以及空间占用率等指标对区域路网服务水平进行评价,并构建区域路网服务退化指数模型。通过不同的区域路网服务退化指数,对应不同的拥堵退化级别,并将此方法应用于昆明市主干路路网中进行验证,量化结果与实际的拥塞情况相符,证明此方法具有良好的适用性。通过研究成果,以期为从宏观层面评价城市道路交通拥塞程度提供新的方法,以及为改善交通环境、提高交通管理水平提供一定的参考价值。Referring to the radiation ability of congestion center, the traffic congestion state was classified and the concept of degradation index of regional road network service was proposed. Based on the improved AHM model, five indexes, including saturation of road capacity, time delay coefficient of traffic congestion, level of free flow, traffic volume and space occupancy, were selected to evaluate the regional road network service and build the degradation index model of regional road network service. Through different regional road network service degradation index, which was corresponding to different congestion degradation level, the proposed method was applied to Kunming trunk road network. The results verify that the quantitative results are consistent with the actual congestion situation, which proves the proposed method has good applicability. Through the research results, the proposed method is expected to provide a new method for evaluating the degree of urban road traffic congestion from the macro level, and to provide a certain reference value for improving the traffic environment and the level of traffic management.

关 键 词：交通工程 城市交通 区域路网服务退化指数 层次分析模型 交通拥塞 路网服务水平 

分 类 号：U491.265[交通运输工程—交通运输规划与管理]