文档介绍:第九届中国智能交通年会大会论文集
信号控制交叉口排队长度估算方法研究
孔涛刘新张茂雷
(青岛海信网络科技股份有限公司青岛266071)
摘要:信号控制交叉口车辆排队长度对于交叉口信号控制策略以及效果评价至关重要。本
文针对实际应用中检测信息仅在一定时间间隔5min)输出的一个统计数据的情况,从交通
状态的判别入手,展开对排队长度计算方法的研究。在畅通的条件下,利用冲击波理论计算
排队长度;而在拥堵情况下,根据交通状态的演变过程,对检测的流量数据进行校正,考虑
滞留车辆数对排队变化的影响,推算交叉口的排队长度。仿真实验表明,在低流量情况下,
本文算法的计算结果误差在10%以内,在高流量情况下,误差在20%以内,能够较为准确的
反映实际道路的排队情况。
关键词:排队长度,冲击波理论,交通状态,交叉口
A Study on Signalized Intersection Queue Length
Estimation Method
Kong Tao ,Liu Xin,Zhang Mao Lei
(Hisense Trans Tech Co.,Ltd, Qingdao, 266071, China)
Abstract: Vehicle queue length is crucial to either signal control strategies or effect evaluation at
signalized intersections. In this paper, for the case that the detection information in practical
application only output in a certain time interval, such as 5 minutes, starting from identification of
traffic state, research on the queue length calculation methods is carried out. Under flow conditions,
the queue length calculated using the shock wave theory; while in the case of congestion, according
to the evolution of traffic state, the detected traffic data is corrected. Considering the impact of
residual vehic