At last, the model is used to infer the expression of the number of vehicles queued before the green time of downstream signal intersection, which are useful in the control of coordinated signals of neighbor intersections. 并且将该模型用来推导下游信号灯交叉口的绿灯开始被截的车辆数的数学表达式,这个结果可用于相邻交叉口信号灯协调控制。