短右转车道影响下的信号交叉口的直行通行能力  

Through Capacity of Signalized Intersection Influenced by Short Right Turn Lane

作　　者：赖元文[1,2] 荣建[2] 刘小明[2] 

机构地区：[1]福州大学土木工程学院,福建福州350108 [2]北京工业大学交通工程北京市重点实验室,北京100124

出　　处：《公路交通科技》2013年第3期131-135,共5页Journal of Highway and Transportation Research and Development

基　　金："十一五"国家科技支撑计划重点项目(2006BAJ18B03);福州大学科技发展基金项目(2009-XY-20)

摘　　要：为量化短右转车道对直行通行能力的影响,针对设置导流岛的信号交叉口短右转车道导致车辆排队阻挡,从而造成直行车道通行能力下降的问题,应用概率论与数理统计方法,考虑短右转车道长度、行人和自行车到达规律、右转车辆到达规律等交通流特性,将与右转车道相邻的直行车道车辆受阻挡情况分为被不能进入短右转车道的车辆阻挡、被右转溢出车辆阻挡、不阻挡3种情况,建立了短右转车道影响下的直行车道通行能力分析模型。通过实测数据对模型进行参数标定,采用实测数据及VISSIM仿真值验证该模型。结果表明,模型计算值与仿真值均随着右转车道长度的增加而增大;计算值总体比HCM方法计算值偏低;随着右转车道长度的增加,模型计算值接近HCM方法计算值。In order to quantify the influence of short fight turn lane on through capacity, aiming at the problem that the vehicles queuing blockage caused by the short right turn lane in signalized intersection with channelized islands, which resulting in the decline of the through capacity, by using probability theory and mathematical statistics method, considering the traffic flow characteristics including length of short right turn lane, arrival regularity of pedestrians, bicycles and right turn vehicles, the blockage situations of through vehicles adjacent to fight turn lane are divided into blockage by right turn unable vehicles, blockage by fight turn spill vehicles, and no blockage. The analysis model of through capacity influenced by short right turn lane is established. The model parameters are calibrated using the field data, and the proposed model is verified using the field data and the VISSIM simulation result. The results show that the model calculation values and the simulation values increase with the increase of right turn lane＇s length, and the values resulted from the presented model are smaller than those resulted from the HCM method on the whole. The former are close to the later with the increase of right turn lane＇s length.

关 键 词：交通工程 导流岛 通行能力模型 阻挡概率 直行车道 

分 类 号：U491.233[交通运输工程—交通运输规划与管理]