Signal coordination control optimization method for bus transit lane on adjacentintersection

Abstract

The invention discloses a signal coordination control optimization method for a bus transit lane on an adjacent intersection. Based on the Webster delayminimumoptimal signal cyclecomputational formula, the maximal value of the optimal signal cycle time for coordinating and controlling various intersections is taken as the public cycle time; the isosaturation principle is combined to optimize the time of a green light on each phase position; an assumption that the lighting time of the green light on the coordinated phase position of the upstream intersection is time 0 is made, the requirement of a first bus and a last bus of a bus fleet reaching the downstream intersection at the green light time is transformed into a constraint condition; the width of a green wave band is coordinated and controlled, maximizing the width of the green wave band is taken as the optimizing target, and a bus fleet based coordination control optimization model is established; the speed recommendation value of a pre-command information sign is calculated according to the optimized signal cycle time and the optimized time of the green light; and the signal coordination control optimization methodis of great significance for improving the use ratio of the effective green light of a signal lamp and optimizing the through efficiency of buses and social vehicles on the intersection.

Description

technical field [0001] The invention belongs to the field of traffic, and in particular relates to an optimization method for signal coordination control of bus lanes at adjacent intersections. Background technique [0002] The intersection is a complex system, with the interweaving and diversion of traffic flow in all directions, and the conflict of different types of traffic. The traffic control measures implemented at the intersection should not only allow various traffic flows to pass smoothly, but also consider the overall traffic level of the intersection. Among them, the signal control of a single intersection is the traffic management of an isolated intersection. In fact, in the urban road network, the distance between two adjacent intersections is usually not far. After the vehicle passes the previous intersection, it will encounter the next intersection At intersections, independent single-point intersection signal control often causes vehicles to stop and go duri...

AI Technical Summary

Problems solved by technology

Among them, the signal control of a single intersection is the traffic management of an isolated intersection. In fact, in the urban road network, the distance between two adjacent intersections is usually not far. After the vehicle passes the previous intersection, it will encounter the next intersection Intersections, independent single-point intersection signal control often cause vehicles to stop and go during the journey

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