设有待行区的左转车道通行能力计算方法研究  

Research on Capacity for Left-turn Lane with Waiting Area

作　　者：宗二凯[1] 邵长桥[1] 

机构地区：[1]北京工业大学交通工程北京市重点实验室,北京100124

出　　处：《武汉理工大学学报》2011年第10期64-68,共5页Journal of Wuhan University of Technology

基　　金："十一五"国家科技支撑计划项目(2006BAJ18B03)

摘　　要：为量化待行区的设置对左转车道通行能力的影响,分析了其特性,以饱和流率法为基础,建立了设有待行区的左转车道通行能力模型;利用线性回归方法确定了损失时间的计算公式。通过待行区设置前后左转车道的通行能力对比分析发现,通行能力提高幅度与待行区长度、损失时间有关。研究成果将为信号交叉口的规划、设计、改造、交通组织、信号配时以及交通运行评价提供理论依据。In order to quantify the effect of waiting area on left-turn capacity, the traffic operating process of left-turn lanes with waiting area was analyzed, and a capacity model for it was developed by the theory of saturation flow rate. Then, lost time was fixed by the linear regression method. Finally, it finds that the increased range of left-turn capacity with waiting area is related to the length of waiting area and lost time. The results provide a theoretical basis for plan ning, design, transformation, traffic organization, signal timing and traffic operations evaluation at intersection.

关 键 词：信号交叉口 左转待行区 通行能力 仿真 

分 类 号：U491[交通运输工程—交通运输规划与管理]