交通信号干线协调控制经典数值计算法的改进

Improvement of classical numerical method for arterial road signal coordinate control

对干线协调控制经典数值算法进行了深入分析,指出了经典数值算法的不足之处。提出了经过修正的绿波带宽度计算方法、交叉口信号相位差计算方法以及实际交叉口与理想交叉口的匹配方法。分析表明,利用改进后的数值算法能实现各实际交叉口与理想交叉口的最佳匹配,计算得出的绿波带宽度和各交叉口信号相位差也更加准确。

The classical numerical method for the arterial road coordinate control was analyzed in detail, revealing the deficiency of the classical method. The improved calculating methods of the green wave bandwidth and the signal phase shift at the road intersection, and the best match method of the real and the ideal intersections were proposed. The case examples demonstrate that the improved numerical method gives more accurate widest possible green wave bandwidth and more accurate signal phase shift in the arterial road coordinate control system.