Control method and device for traffic signals

Abstract

The embodiment of the invention provides a control method and device for traffic signals. By obtaining road information and timing reference information of an intersection and the traffic flow of eachsingle lane in the previous preset time period, the phase position, the phase sequence and the signal cycle duration of the intersection in the next target time period and the green time ratios corresponding to all the phase sequences can be determined; and traffic signals are controlled according to the determined phase positions, phase sequences, signal cycle duration and green time ratios of all the phase sequences. Through the technical scheme, the corresponding phase positions, phase sequences, signal cycle duration and green time ratios are determined in the different time periods according to the counted traffic flow within the previous time period, thus the control method of the traffic signals in the different time periods can be determined, in this way, the determined traffic signal control method is based on actual traffic situations of the intersection in the near time period, the certain real-time property is achieved, dynamic adjusting is achieved, and thus traffic pressure is relieved more advantageously.

Description

technical field [0001] The invention relates to the technical field of intelligent transportation, in particular to a traffic signal control method and device. Background technique [0002] With the development of science and technology and the progress of society, the traffic system is becoming more and more intelligent. The intelligent intersection timing method has changed the traditional traffic lights to a certain extent. The method of "fixed pairing" means: the red light and the green light respectively display the set fixed duration. [0003] In the existing intelligent transportation system, the traffic signal control is usually realized based on the intersection timing method. Each region and each intersection can set different intersection timing methods according to the traffic conditions, and then realize different traffic signal control. At present, the commonly used intersection timing methods include TRRL method, ARRB method, American Highway Capacity Calcula...

AI Technical Summary

Problems solved by technology

[0004] The existing timing methods at intersections are highly specialized and require a lot of manpower. After complex manual calculations, a set of traffic signal control schemes can be obtained, and then the traffic signal lights can be controlled.

However, based on the traffic signal control method ob

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