摘要
【目的】为实时准确地预测交叉口车辆起动波波速,提出改进的交叉口车辆起动波波速算法。【方法】从车辆跟驰动力学角度,将车辆起动波波速视为车队中所有相邻车辆之间运动状态传播速度的平均值,推演出新的算法。【结果】新算法理论值和实测值对比发现,超过75%的样本处于误差允许范围之内。【结论】新算法科学可行,能为实际道路交叉口交通信号控制提供新的理论依据。
Objective]The speed algorithm of the intersection starting wave of the vehicle was improved,in order to solve the real-time and accurate prediction of the starting wave speed.[Methods]In view of car-following dynamics,the starting speed of the vehicle is regarded as the average value of the propagation velocity of the moving state of all the neighboring vehicles in the fleet,and a new speed algorithm of the intersection starting wave is derived.[Results]Com-paring the theoretical value with the measured data at a typical signalized intersection,more than 75% of samples are in the range of error allowed.[Conclusion]The scientific nature and feasibility of the new algorithm are verified.This algorithm provides a new theoretical basis for the traffic signal control of the road intersection.
出处
《广西科学》
CAS
2016年第3期223-227,共5页
Guangxi Sciences
基金
广西自然科学基金项目(2012GXNSFBA053015,2014GXNSFAA118021)资助
关键词
智能交通
车辆起动波波速
交通流动力学
信号灯控制算法
最小可觉差
intelligent traffic
vehicles start wave speed
traffic flow dynamic
signal control al-gorithm
j ust noticeable difference
