A method and device for optimizing timing of traffic signal lights at intersections

Abstract

An embodiment of the present invention provides a method and device for optimizing the timing of traffic signal lights at intersections. The method includes: acquiring multi-source traffic data at the target intersection, and establishing a traffic operation state model; based on the traffic operation state model and the preset initial signal light The timing scheme adopts a reinforcement learning method to optimize the initial signal light timing scheme. The method and device for optimizing the timing of traffic signal lights at intersections provided by the embodiments of the present invention collect multi-source traffic data at intersections to establish a traffic operation state model, and divide the traffic flow at intersections into stable vehicle flow states under normal conditions and those affected by traffic conditions. The dynamic traffic flow state caused by weather or traffic accidents, based on the traffic operation state model, uses the reinforcement learning method to optimize the traffic signal control of a single intersection, which can effectively solve the problem of urban traffic congestion and improve the efficiency of motor vehicle traffic at the intersection.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of intelligent transportation, in particular to a method and device for optimizing timing of traffic signal lights at intersections. Background technique [0002] With the improvement of people's living standards and the rapid development of cities, the urban transportation system is also facing more and more severe tests with the progress of urban modernization. The number of vehicles increases year by year, vehicle congestion intensifies, traffic accidents occur frequently, and social resources are wasted. The intensification of environmental pollution has seriously affected people's travel efficiency, quality of life, and physical and mental health. Therefore, alleviating traffic congestion in cities has great economic and ecological significance. [0003] At present, in most cities in my country, the time before and after the establishment of traffic intersection signal control ...

AI Technical Summary

Problems solved by technology

[0004] The embodiment of the present invention provides a method and device for optimizing the timing of traffic signal lights at intersections, which is used to solve the problem that the traditional traffic signal timing system cannot meet the communication transmission of a large number of traffic data streams and the real-time optimization of traffic control strategies, and it is necessary to establish a complex Traffic model, a flaw that is difficult to maintain

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