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Arterial Traffic Two-Direction Green Wave Coordination Control Based on MATLAB Graphical Method

This paper presents a new two-direction green wave optimization method to solve the coordination control problem of urban arterial traffic. An optimization method based on MATLAB graphical computation was proposed to solve the synchronous optimization for five parameters including the phase, the phase sequence, the offset, the cycle time and the split. Inbound coordination in the heavy traffic flow direction was achieved firstly, and the offset between each intersection in the outbound direction was adjusted by using phases with asymmetric signal mode, lag-open or advanced-close and etc. Then the coordinated control scheme for multi-plan was designed flexibly according to the characteristics of different intersections. The implementation shows: this method can take into account the non-motor vehicles, pedestrian and intersection traffic demands, improve the traffic efficiency for arterial roads, and reduce vehicle stop delay.