An Optimal Method for Signal Coordination Control of Bus-only Lanes at Adjacent Intersections

Abstract

The invention discloses an optimization method for signal coordinated control of a dedicated bus lane at an adjacent intersection. The present invention is based on the calculation formula of the minimum and optimal signal period of Webster delay, and adopts the maximum value of the optimal signal period duration for coordinated control of each intersection as the common period duration; combined with the principle of equal saturation, the green light duration of each phase is optimized; assuming that the upstream intersection is coordinated The time when the phase green light is turned on is 0, and the requirement that the first vehicle and the last vehicle of the bus fleet arrive at the downstream intersection is at the time of the green light is transformed into a constraint condition; the width of the green wave belt is coordinated and controlled, and the maximum width of the green wave belt is the optimization goal. Establish a coordinated control optimization model based on the bus fleet; calculate the recommended speed value of the pre-command information board according to the optimized signal cycle duration and the optimized green light duration; Traffic efficiency is of great significance.

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 a dedicated bus lane at an adjacent intersection. 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 sto...

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

Images