A Control Method of Intersection Signal Based on Exit Remaining Capacity Constraint

Abstract

The invention discloses an intersection signal control method based on exit residual capacity constraints. Adopted devices comprise multiple traffic flow detectors, a data transmission subsystem, a data processing and control module and lane signal lamps. Firstly, each traffic flow detector acquires queue information of each exit lane at the intersection in real time; then, the traffic flow detector transmits the acquired queue information to the data processing and control module via the data transmission subsystem; and finally, the data processing and control module carries out logic judgment on the received queue information, when queue overflow is about to happen in certain exit lane through judgment, the data processing and control module adopts strategies such as a shortened green lamp and phase jump to instantly give a control command to the data transmission subsystem to change the color of the lane signal lamp, a vehicle flow driving in the exit lane is interrupted, and thus, smooth running at the intersection is ensured. On one hand, happening of a queue overflow condition at the intersection exit can be eliminated through a signal control technology, and traffic jam at the intersection can be avoided; and on the other hand, the passing ability of the intersection in a congested area is improved, and the traffic jam evacuation time is shortened.

Description

technical field [0001] The invention belongs to the field of traffic engineering, in particular to an intersection signal control method based on exit remaining capacity constraints. Background technique [0002] Although Article 53 of the "Regulations for the Implementation of the Road Traffic Safety Law of the People's Republic of China" stipulates that when a motor vehicle encounters a traffic jam at an intersection ahead, it should stop outside the intersection and wait in turn, and must not enter the intersection. If a similar situation occurs, a fine of 100 yuan and 2 points may be imposed. However, due to the lack of effective regulatory measures, this provision has not been implemented at present. However, the urban road network is often oversaturated with traffic in the morning and evening peak hours. Vehicles queuing up at the intersection continue to accumulate. When the vehicle queuing length exceeds the length of the road section, the queuing overflow phenomeno...

AI Technical Summary

Problems solved by technology

However, due to the lack of effective regulatory measures, this regulation has not been implemented at present.

However, the urban road network is often oversaturated with traffic in the morning and evening peak hours. Vehicles queuing up at the intersection continue to accumulate. When the vehicle queuing length exceeds the length of the road section, the queuing overflow phenomenon will occur, thereby blocking other directions at the intersection. The traffic of the vehicle causes the deadlock of the intersection

At this time, not only the vehicles in the overflow direction of the queue will gradually spread upstream, but the queues of vehicles in other directions that are blocked will also become longer and longer, which will cause a wider range of queue overflow and cause traffic paralysis in some areas

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