Switched Perimeter Control for Two-Region Urban Traffic Networks with Dynamic Macroscopic Fundamental Diagrams

Macroscopic fundamental diagrams (MFD) in a homogeneous urban road network are extended to dynamic ones for two regions constituting this network, and a novel perimeter control strategy based on switched MPC is proposed in this paper. During the peak hour, the road network can be partitioned several times triggered by some switching signals, and this is different from static road network partitioning. In this paper, a switching system control method called SMPC is proposed such that perimeter controller for the two-region urban network can switch among different schemes in the case of dynamic MFDs. By SMPC, the desired accumulation can be achieved and the congestion in the central region can be alleviated. Effectiveness of the proposed perimeter control strategy based on SMPC is verified by numerical simulations and the comparison results based on different evaluation indexes show the performance of SMPC is superior to another two control methods.