Intersection traffic signal lamp timing optimization method and device

Abstract

The embodiment of the invention provides an intersection traffic signal lamp timing optimization method and device, and the method comprises the steps: obtaining the multi-source traffic data of a target intersection, and building a traffic operation state model; and based on the traffic operation state model and a preset initial signal lamp timing scheme, optimizing the initial signal lamp timingscheme by adopting a reinforcement learning method. In the intersection traffic signal lamp timing optimization method and device, multi-source traffic data of the intersection are collected to establish a traffic operation state model, traffic flow passing through an intersection is divided into a stable traffic flow state under a conventional condition and a dynamic traffic flow state caused byweather or traffic accident influence. Based on the traffic operation state model, a reinforcement learning method is used to optimize the traffic signal lamp control of a single intersection, the urban traffic jam problem can be effectively solved, and the intersection motor vehicle passing efficiency is improved.

Description

Technical field [0001] The embodiment of the present invention relates to the technical field of intelligent transportation, and in particular to a method and device for optimizing the timing of traffic signal lights at an intersection. 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 is increasing year by year, vehicle congestion is getting worse, traffic accidents are frequent, and social resources are wasted. Increased 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 establishment time of traffic intersection signal control is quite different, and th...

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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