Traffic light control method and control system

Abstract

The invention discloses a traffic light control method and control system. The control method includes the following steps that: the lighting-up state of a traffic light is initialized, a distance threshold value is set; the real-time positions of vehicles are acquired, and when it is detected distance between the vehicles and the traffic light are smaller than the distance threshold value, the vehicles send passage requests; the passage requests sent by the vehicles are received, and the quantities of the passage requests received in different passage directions is put into statistics; and the quantity difference of the passage requests received in the different passage directions is calculated, and the lighting-up time of the red lamps and green lamps of the traffic light in the different passage directions is adjusted according to the quantity difference. According to the traffic light control method, the passage requests sent by the vehicles in different passage directions are obtained, and the quantity difference of the passage requests received in the different passage directions is calculated; and the lighting-up time of the red lamps and green lamps of the traffic light inthe different passage directions is adjusted according to the quantity difference; and therefore, the passage capacity of roads is given to full play, the waste of the passage resources of the roadsis prevented, and the passage efficiency of the roads is improved.

Description

technical field [0001] The invention relates to the technical field of traffic control, and more specifically relates to a traffic light control method and a control system thereof. Background technique [0002] With the development of our country's economy and the improvement of people's living standards, in recent years, the most obvious is the sharp increase in the number of private cars, which leads to congestion in urban traffic systems and poses severe challenges to urban roads and traffic control systems. In fact, there are large differences in traffic and people flow in different road sections, different directions, and at different times in the city. Often there is traffic congestion in one direction at intersections, and there is no traffic and people flow in the other direction. With the increase of the number of vehicles, the management pressure of road traffic is increasing day by day, how to effectively dispatch the traffic at road intersections has become a di...

AI Technical Summary

Problems solved by technology

For example, there is a lot of traffic on the north-south road, and it takes multiple green lights to pass through. However, there are very few vehicles on the east-west road, and all the vehicles can be released within the green time. Switching signal lights at a fixed time will cause more congestion on the north-south road, and the green light time in the east-west direction will be wasted

Therefore, this control method using timing switching usually causes vehicles to "wait" for the green light to switch, which cannot fully utilize the road traffic capacity, which in turn leads to waste of road traffic resources and reduces road traffic efficiency.

Images