Single-point intersection traffic signal control method

A single-point intersection and traffic signal technology, which is applied in the direction of controlling traffic signals, traffic control systems, road vehicle traffic control systems, etc., can solve problems such as complex models and difficult solutions, achieve efficiency, increase loss time, The effect of improving road traffic efficiency

CN114202916AActive Publication Date: 2022-03-18辽宁警察学院
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2022-03-18

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Abstract

The invention discloses a single-point intersection traffic signal control method, and relates to the technical field of intelligent traffic control, and the method comprises the steps: obtaining lane traffic state information of lanes in two directions; the lane traffic state information comprises the driving speed of any vehicle at the current moment, the average headstock distance, the distance between any vehicle and a corresponding stop line, the number of waiting vehicles in front of any vehicle and the traffic flow; determining a switching period of the signal lamp; in each switching period, whether waiting vehicles exist on the lanes in the two directions or not is determined according to the lane traffic state information; when waiting vehicles exist on the lanes in the two directions, respectively calculating passing fitness functions of the two lanes according to the traffic state information of the lanes, the waiting time cost function of the lanes and the number of the vehicle queues; and controlling phases of signal lamps corresponding to the two lanes according to the passing fitness functions of the two lanes. According to the invention, the maximum delay of vehicles at the intersection can be reduced, and waste of lane occupancy is avoided.
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Description

technical field

[0001] The invention relates to the technical field of intelligent traffic control, in particular to a single-point intersection traffic signal control method. Background technique

[0002] The intersection is a complex system, with the interweaving and diversion of traffic flow in all directions. The occurrence rate of starting, stopping, acceleration and deceleration of vehicles in the intersection area is significantly higher than that in other road network areas, which affects the overall continuity of traffic flow operation. Negative impact, resulting in traffic delays. Traffic lights are usually set at intersections. Reasonable control of traffic signals at intersections can improve the capacity of intersections, reduce vehicle delays at intersections, and effectively alleviate urban congestion.

[0003] The current traffic signal control can be roughly divided into three categories:

[0004] (1) Timing control. Timing control is mainly to divide a d...

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Embodiment Construction

[0048] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is an embodiment of a part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0049] Such as figure 1 As shown, it shows a schematic diagram of a single-point intersection holographic perception adaptive control mode in an embodiment of the present invention. At a single-point intersection, there are lanes in the east-west direction and north-south direction. On the east-west lanes, lane 2, 6 is the entrance...