交叉口黄色信号灯和全红时间的改进计算(英文)

Improvement on the Computation of Left-Turn Yellow Intervals

在道路交叉口正确设置左转车辆的黄色信号灯和全红(所有方向信号灯均为红色,在必要时设置)的时间长度,能够提高交叉口的效率和安全.本文分析了影响2种信号周期设置的各种因素,以及2种信号时间的计算机理,在计算模型中引入了更多的影响因素,使得模型更加合理和符合交叉口的实际情况.同时,对于一些难以量化的人为因素,例如驾驶员的驾驶特性,引入了3个参数,并且根据大量实验数据,给出了这些参数在各种交叉口环境下的参考值.经过这些研究,黄色信号灯和全红时长的计算模型得到了改进,提高了交叉口交通的通行效率和安全.

Appropriate method in determining the left-turn yellow interval in right-hand-side driving environment would result in signal timings that are either safer for left-turn vehicles or more efficient for intersections. The factors that affect the setting of the yellow interval, and the theory for computation of the yellow interval is analyzed. More factors are incorporated in the computation model. And for some human related factors such as driving habits, three quantities are considered. Yellow interval (yellow change and all-red clearance) is improved, and makes the intersection implementing the model more efficient and safer.