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针对传统协调控制模型中存在的公共周期限制的问题,提出了对不同信号周期时长的交叉口实行大周期内协调控制的思路,并根据车辆到达交叉口所遇到的信号状态,给出了大周期内路段行程时间的模型。以2个交叉口之间的路段行程时间最短为信号协调控制优化的目标,考虑大周期内车辆不溢出路段的条件,构造出对不同信号周期时长的2个交叉口之间进行协调控制的模型。通过模型的多次应用实现了多个交叉口协调控制方案的求取。最后根据具体算例说明了多交叉口协调控制模型的具体实施方法,同时也指出了不同周期交叉口之间进行协调控制的必要性和合理性。
Aiming at the problem of the common cycle limitation existing in the traditional coordinated control model, the idea of implementing coordinated control in large cycles for the intersections with different signal periods is proposed. Based on the signal states encountered at the arrival of the vehicles, a large Model of period travel time in cycle. Taking the shortest travel time between two intersections as the goal of signal coordinated control optimization, a model of coordinated control between two intersections with different signal periods is constructed considering the conditions that the vehicles do not overflow during the large cycle. . Through the multiple application of the model, the coordination of multiple intersections can be achieved. Finally, according to the concrete example, the concrete implementation method of multi-intersection coordination control model is illustrated, and the necessity and rationality of coordinated control between different cycle intersections are also pointed out.