远端检测场景下信号交叉口延误参数提取方法分析

延误参数对于信号交叉口的配时优化和服务水平评价均具有比较重要的作用。首先分析了远端检测器设置的情况,结合交叉口的配时以及后端检测器能够获取到的参数,使用逻辑推导的方式给出了延误提取的方法。通过实际交叉口数据提取验证,结果表明,在使用实时获取的首车车头时距,该方法的参数提取精度可以达到80.33%,如果对首车车头时距使用统一设定的值,则参数提取的精度为74.46%。表明该方法可以为后端检测器设置场景下的参数提取提供一种新的思路。

Analyzing on Signalized Intersection Control Delay Extraction Method Under Far Distance Detector Setting Condition

s: Delay has important role on the optimizing the time design and evaluation of the service level at the signalized intersection. The far distance detector setting was introduced firstly. Using the detected data and the time information, the logic inference was used to deduce the delay extraction method. Through the true intersection data comparing, it was proved that the method have the precision of 80.33% when the on-line first vehicle headway used, and 74.46% when the average uniform first vehicle headway used. The method can provide a new way to get the delay parameter when there was the detector setting far from the stop line.