快速路分、合流影响区交通特性及通行能力研究  

Analysis of Traffic Flow Characteristics and Capacities of Diverging and Merging Influence Areas

作　　者：李秀文[1] 荣建[1] 刘小明[1] 张智勇[1] 

机构地区：[1]北京工业大学交通工程实验室,北京100022

出　　处：《公路交通科技》2006年第1期101-104,共4页Journal of Highway and Transportation Research and Development

基　　金：国家十五重点科技攻关项目(2002BA404A02);北京市自然科学基金重点项目(KD0402200389)

摘　　要：分、合流区通行能力是影响快速路通行能力的重要因素之一,而分、合流影响区的通行能力是制约分、合流区通行能力的关键原因。文章从分析分、合流影响区内的车辆运行特性入手,根据北京、上海、广州等城市大量的实测数据,分别通过统计车头时距、速度-流量关系和饱和流时高频率出现的流率等方法推荐了快速路分、合流影响区的通行能力,为快速路分、合流区的交通规划和设计,交通组织和管理的改善提供了理论基础。Capacities of Diverging and Merging Areas is an important element in factors which influence the capacity of expressway. While capacity of diverging and merging influence areas is a key issue which restrict the capacity of diverging and merging areas. This article began with analysis of traffic flow characteristics of diverging and merging influenc, areas, based upon a mass of data collected from Beijing, Shanghai and Guangzhou, studied the capacity of diverging and merging influence areas by statistic time head- way, relations of speed and volume and frequently appeared saturated volume, consequently, provided a theoretic base for planning, design of diverging and merging areas, for improvement of traffic organization and management.

关 键 词：快速路 分、合流影响区 交通特性 通行能力 

分 类 号：U491.112[交通运输工程—交通运输规划与管理]