摘要
分析了十字形和T形无信号交叉口右转车辆对后续直行车辆的影响过程,分别建立了2种类型交叉口右转车后直行车延误模型,定量分析了运行速度,右转车比例,单车道流率,转弯速度与延误之间关系,通过实测交叉口数据对模型进行了验证,试验结果与计算结果十分吻合。分析表明该延误模型具有一定的实用性,为无信号交叉口的几何改进,减少主路直行车延误提供了依据。
The influence of the right-turn vehicles on through vehicles were analyzed at unsignalized crossings and T-intersections, and the delay model of the through vehicles were established for the two types of intersections respective- ly. Quantitative analysis was conducted to show the relationship between speed, right-turn proportion, flow rate of single lane, right-turn speed and delay of through vehicles. At last, the formulas were verified through data comparison at an in- tersection and the calculation results were in agreement with the field results. This shows that the delay model is practical and can be used as a basis to support geometry improvement of unsignalized intersections and reduce the massive delay on going-straight vehicles.
出处
《交通信息与安全》
2012年第5期60-64,共5页
Journal of Transport Information and Safety
基金
国家高技术研究发展计划(863计划)项目(批准号:2011AA110302)
"十一五"国家科技支撑计划课题(批准号:2009BAG13A06)资助
关键词
无信号交叉口
右转车辆
直行车辆
延误模型
unsignalized intersection
right turn vehicles
through vehicles
delay model
