An intelligent control method for changing the driving direction of variable-guided lanes at signalized intersections

Abstract

The invention discloses an intelligent control method for changing the driving direction of a variable guiding lane at a signalized intersection, which belongs to the field of traffic control. Specifically, it includes the layout of two high-definition video units; the acquisition of parking times, control delays and signal control timing parameters; the intelligent decision-making method and process for changing the driving direction of the variable guiding lane. The present invention starts from the traffic characteristics of the variable guiding lanes at signalized intersections, and obtains the difference in the number of parking times of the traffic flows in each turning lane at the intersection through the high-definition video units installed at the entrance of the upstream intersection and the entrance of this intersection, and analyzes each The delay of turning traffic flow control is further judged, and an intelligent control method for changing direction of variable steering lane is proposed. The purpose of this method is to improve the traffic capacity of the entrance lane of the signalized intersection and the utilization rate of the variable guide lane, reduce the number of vehicles parking at the entrance lane, and reduce the delay of vehicles at the intersection.

Description

technical field [0001] The invention belongs to the field of traffic control at intersections, and in particular relates to an intelligent control method for changing the driving direction of a variable guiding lane at a signalized intersection. Background technique [0002] The driving direction of the channelized guide lanes on each entrance lane of the traditional signal-controlled intersection is usually set to a fixed driving direction, which cannot meet the needs of the obvious fluctuations in the turning flow of the intersection entrance lanes. The variable guide lanes just meet this vehicle traffic demand . At present, the change of the direction of the variable directional lane is often conducted by the police on duty to investigate the steering traffic volume and manually adjust the driving direction of the variable directional lane sign or set it in the driving direction change control device of the variable directional lane sign according to a fixed period of tim...

AI Technical Summary

Problems solved by technology

[0002] The driving direction of the channelized guide lanes on each entrance lane of the traditional signal-controlled intersection is usually set to a fixed driving direction, which cannot meet the needs of the obvious fluctuations in the turning flow of the intersection entrance lanes. The variable guide lanes just meet this vehicle traffic demand

At present, the change of the direction of the variable directional lane is often conducted by the police on duty to investigate the steering traffic volume and manually adjust the driving direction of the variable directional lane sign or set it in the driving direction change control device of the variable directional lane sign according to a fixed period of time. The control of this kind of direction change cannot meet the traffic demand of turning traffic in real time, which often leads to problems such as inappropriate time of direction change, low utilization rate of variable guiding lanes, high illegal behavior of using guiding lanes in non-specified directions, etc.

[0003] Previous studies have proposed methods such as induction control, double stop line control, and pre-signal control, but the proposed control process is not feasible, difficult to obtain parameters, and high acquisition costs.

The existing Chinese patent document CN103186984B, a method for triggering the change of steering function of a variable steering lane at an urban intersection, only involves the method of specifically determining the switching of the steering function of a steering lane based on the queue length and saturation difference of the steering lane, and does not involve the method based on the number of parking and control delay parameters to specifically determine the control method for the direction change of the variable steering lane

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