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针对区域协调控制中相位差的封闭性,采用图论知识,建立了闭环路网的判别方法及闭环路网相位差封闭性的表达模型;考虑协调相位每周期到达车辆数、闭环路网相位差对车辆造成的阻滞两个因素,建立了路段权重模型;以协调控制效益损失最小为优化目标,建立了基于最优生成树的闭环路网相位差优化方法。最后以一个区域闭环路网为例对所建方法进行具体分析。本文的研究可以为区域协调控制中闭环路网的相位差优化提供理论依据。
Aiming at the closedness of phase difference in the regional coordinated control, the discriminant method of closed-loop network and the closed-loop closed-loop expression model of closed-loop network are established by using the knowledge of graph theory. Taking into account the number of arriving vehicles per coordinated phase, the closed-loop network phase difference And the block caused by the vehicle are two factors, the road section weight model is established. In order to minimize the loss of coordination and control efficiency, a phase-difference optimization method based on optimal spanning tree is proposed. Finally, a closed loop network in the area is taken as an example to analyze the method. The research in this paper can provide a theoretical basis for the phase difference optimization of closed-loop networks in regional coordinated control.