城市道路网运行实时动态评价理论和技术研究  

Real-time dynamic evaluation of urban netword

作　　者：全永燊[1] 郭继孚[1] 温慧敏[1] 孙建平[1] 

机构地区：[1]北京交通发展研究中心,北京100055

出　　处：《中国工程科学》2011年第1期43-48,共6页Strategic Study of CAE

基　　金：国家重点基础研究发展计划973项目(2006CB705500);北京市科技计划项目(D101100049710004;D07050600440704)

摘　　要：从道路网运行的基本特性入手,着重分析了路网运行的随机波动性、递延传导效应和周期规律性。在此基础上,剖析了迄今国内外一直沿用的道路"负荷度"路网评价理论的局限性,提出一套适用于路网整体实时动态评价的理论和技术方法,解决了无盲区实时数据采集与处理、路网运行时空动态分析、评价指标阈值标定等关键技术难题,为交通战略规划、实时动态路网功况诊断等提供了全新的技术手段,北京市的实证研究初步证明了所提出的理论和技术体系科学、有效、实用。This paper analyzes the dynamic nature of real-time traffic network with particular focus on random traffic flow fluctuation, traffic deferred conduction effect limitations of the traditional traffic network evaluation methods based on traffic V/C is presentation of a novel approach for real-time traffic network performance evaluation, technical issues such as data collection and processing with no blind region, dynamic performance measurement, and traffic periodicity. The discussed; followed by the which solves the previous spatial-temporal traffic net- work performance analysis and evaluation threshold calibration. The proposed approach is validated in a case study using the Beijing traffic network, which proves its rationality, efficiency and practicality. The implications of the research and methodologies presented in this paper provide new theories and perspectives for infrastructural planning, dynamic road network performance evaluation, etc.

关 键 词：路网实时动态评价 负荷度评价 递延传导效应 “五维”拥堵指数 

分 类 号：U49[交通运输工程—交通运输规划与管理]