Adaptive traffic light control method

Abstract

The invention discloses an adaptive traffic light control method. The method comprises the steps of setting a vehicle number monitoring module, collecting the number of vehicles in each passing direction in real time, controlling the duration of a green light in the current passing direction according to the number of vehicles and a preset rule, thereby greatly improving the passing efficiency. Meanwhile, an emergency passage control method is set, so that emergency vehicles such as ambulances and fire fighting trucks can quickly pass through intersections, and the loss of people and casualties are reduced and even avoided.

Description

technical field [0001] The invention relates to an adaptive traffic light control method, which belongs to the field of traffic intelligence. Background technique [0002] With the development of the economy, the number of private cars has increased sharply, which has increased the pressure on urban traffic and caused urban congestion. [0003] At present, the control method of traffic lights at intersections is relatively rigid. Once the passing time in each direction is determined, it cannot be adjusted during operation. However, there is considerable uncertainty and randomness in the vehicles in all directions at the intersection. In the actual operation process, it often happens that a certain traffic direction is green, but there are no vehicles in this traffic direction; or there are many vehicles in a certain traffic direction, and there are no vehicles in the other traffic directions, the traffic lights can still only run according to the set program. exacerbated t...

AI Technical Summary

Problems solved by technology

In the actual operation process, it often happens that a certain traffic direction is green, but there are no vehicles in this traffic direction; or there are many vehicles in a certain traffic direction, and there are no vehicles in the other traffic directions, the traffic lights can still only run according to the set program. exacerbated traffic congestion

[0004] At the same time, urban emergency vehicles, such as ambulances, fire trucks, etc., although these vehicles may not follow the traffic light signals in emergency situations, they will still be blocked on the way out of the task with a high probability in the case of very congested traffic. Unable to arrive at the rescue site in time, resulting in unnecessary losses or even casualties

[0005] Therefore, the current traffic lights with relatively fixed passing times in all directions can no longer cope with the increasing traffic pressure today.

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