Research on the Algorithm for Optimizing the Key Intersection Control Parameters of Two-Way “Green Wave Belt”

Abstract

Urban traffic congestion has become a major problem affecting people’s livelihood. Thus, traffic en-gineers have carried out many useful explorations and achieved good results. Urban traffic signal control system, which automatically detects the traffic flow on the road and gives the optimal con-trol scheme of traffic lights at intersections, has also been a research hotspot. The practice of traffic “green wave belt” in some cities gives citizens a good sense of participation. At present, however, the “one-way traffic green wave belt” is still difficult to meet the two-way coordinated control of trunk traffic, and too much emphasis on the green wave control in specific directions will also bring re-verse traffic obstruction or “red wave belt” phenomenon, sometimes seriously affecting the traffic efficiency of the intersection correlation phase. Whether we can use the spatio-temporal graph to optimize the algorithm of green wave control signal period and green signal ratio to further im-prove the traffic efficiency and realize the “bidirectional green wave band” is the focus of this paper. Through the study of Minhang District Xinzhen Road intersection, the traffic signal control strategy is optimized.