城市快速路匝道合流区拥阻机理及对策分析  

Analysis on congestion mechanism and strategy of ramp merging area in urban expressway

作　　者：薛行健[1,2] 宋睿[1] 晏克非[1] 

机构地区：[1]同济大学道路与交通工程重点实验室,上海201804 [2]中南林业科技大学物流学院,长沙410004

出　　处：《中南林业科技大学学报》2011年第9期152-159,共8页Journal of Central South University of Forestry & Technology

基　　金：国家高技术研究发展计划项目(863计划)(编号:2008AA11Z201)"城市客运交通方式间的资源配置优化技术";湖南省益阳市科技计划项目(No.2010JZ24)"城市快速路匝道衔接区的设置条件及其技术标准研究"

摘　　要：城市快速路匝道合流区是拥阻高发区域。基于跟驰理论和交通波理论,通过对交通运行行为进行解析,明确了匝道车辆汇入主线产生的变道及由此导致的变速行为是匝道合流区通行能力下降的成因,并用上海市快速路匝道合流区实例对理论分析进行了印证;最后根据分析结论,提出防治匝道合流区拥阻的6条原则,并结合城市快速路的设计、管控和评价内容逐条进行了分析,提出了匝道合流区拥阻防治对策。Ramp merging areas of urban expressway are areas of high incidence of congestion.Based on car-following theory and traffic weave theory and explanation of traffic operation behavior,the cause that traffic capacity decreases was explained by lane-change generated by ramp cars importing mainline and resultant speed-change behavior,and the example of ramp merging area of expressway of Shanghai was used to certify the theory.Finally,6 basic principles for controlling congestion of ramp merging area were put forward with analytical conclusion and controlling congestion strategy for ramp merging area was provided combined with design,management,control and appraisal of urban expressway.

关 键 词：城市快速路 匝道合流区 拥阻机理 拥阻对策 通行能力 

分 类 号：U491.1[交通运输工程—交通运输规划与管理]