摘要
为了估算右转常绿信号交叉口短右转车道通行能力,应用概率论相关方法,将右转车辆到达直行、右转共用车道的情况分成右转车辆被直行车阻挡、右转车辆溢出后被直行车辆阻挡和没有被阻挡三种情况.提出前两种情况发生的概率模型及均值模型,第三种情况的概率及通行能力,以此为基础建立出短右转车道的通行能力计算模型.用福州市信号交叉口实测数据对模型进行标定,应用VISSIM仿真软件验证模型.结果表明,右转车道通行能力随着短右转车道长度的增加而增大,车道长度越长,通行能力增长的趋势越缓.模型能较好的反映短右转车道对右转车道通行能力影响的实际情况,可为短右转车道设置提供理论依据.
In order to estimate the capacity of fight turn lane at right turn on red slgnallzeO intersec- tions, use probability theory, divided the situation of fight turn vehicles arriving through and fight turn shared lane into right turn blockage by through vehicles, fight turn blockage by through vehicles after fight turn vehicles spill, and no blockage. Proposed probability model and average value model of the first two situations, probability and capacity of the third situation, established the capacity calculation model of short right turn lane. The proposed model use calibrated through the field data collected at signalized intersection in Fuzhou. The proposed model was validated against the rnsults from VISSIM The results show that right turn lane capacity increase along with the length of the short fight turn lane, the capacity growth is slower with the lane length longer. The proposed model can better reflect the fight turn lane capacity influenced by the short right turn lane, provide a theoretical basis for the set ting of short right turn lane.
出处
《福州大学学报（自然科学版）》
CAS
CSCD
北大核心
2012年第5期646-650,共5页
Journal of Fuzhou University(Natural Science Edition)
基金
"十一五"国家科技支撑计划重点资助项目(2006BAJ18B03)
福州大学科技发展基金资助项目(2009-XY-20)
关键词
交通工程
通行能力模型
阻挡概率
短右转车道
右转常绿
traffic engineering
capacity model
blockage probability
short right turn lane
right turnon red
