Step-by-step wave searching method for regional signal coordinated control

Abstract

The application provides a step-by-step wave searching method for regional signal coordination control, which decomposes the regional signal coordination control into the coordination control of each trunk line in the region, determines the coordination sequence of the trunk lines in the region, determines the priority of the trunk lines in the region, and performs the signal coordination on each trunk line step by step; in the trunk line to be coordinated, if there is no coordinated intersection or there is one coordinated intersection, the trunk line is directly coordinated to determine the green wave bandwidth and the phase difference; if there are two or more coordinated intersections, a coordination sub-region is established based on the coordinated intersections, the trunk line is coordinated in the coordination sub-region, and the green wave bandwidth is calculated; a sub-region is established by using one coordinated intersection and all uncoordinated intersections on the trunk line and the trunk line is coordinated, the common part of the green wave bands in the two coordination sub-regions is selected as the green wave band of the trunk line, and finally the signal coordination control of all the trunk lines in the region is completed. The application can obviously improve the average delay, the number of stops and the fuel consumption of vehicles in the region.

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