Self-adaption emptying signal control method for signal intersection

Abstract

The invention relates to a traffic control method, in particular to an emptying signal control method for a signal intersection, which overcomes the defect that congestion and waste are caused due to the fact that the intersection emptying time does not conform to the number of actually remained vehicles. According to the method, a green flash signal is used as an intersection parking line safety parking time signal, a yellow light signal is used as a special emptying signal, the self-adaption duration of the yellow light signal is controlled by an intersection internal remaining vehicle number counting device and a self-adaption timing program, an emptying duration upper limit linked with alarming is set, safety parking and emptying phase are clearly separated, the emptying time is calculated according to an intersection internal remaining vehicle allocation emptying signal in a self-adaption manner, the set of the signal intersection emptying time is optimized, cross direction traffic stream can be released immediately after vehicles at the intersection are completely emptied, and entrance of cross direction traffic stream when vehicles in the intersection are not completely emptied is avoided, so that congestion is effectively avoided, and the intersection traffic capability is improved.

Description

technical field [0001] The invention relates to a traffic signal control method, in particular to a signal intersection control method. Background technique [0002] Signal intersection, the full name of the signal control intersection, refers to the control of traffic lights to make left-turn motor vehicles and straight-going motor vehicles, motor vehicles and pedestrians stagger in passing time, generally used in busy urban branch roads and The intersection of arterials or the intersection of arterials and arterials. At signalized intersections, the entrance lanes are divided into three directions: left-turn, straight-going, and right-turn. Increasing the number of lanes can greatly improve the traffic capacity of motor vehicles. [0003] Clearing time at signalized intersections refers to the time when motor vehicles are prohibited from entering the intersection at all entrance directions of the intersection. During this period, motor vehicles in the intersection are all...

AI Technical Summary

Problems solved by technology

With similar methods, it is impossible to adjust the clearing time according to the actual remaining motor vehicles in the intersection

[0006] At signalized intersections with large traffic flow changes, it often occurs that too short clearing time cannot completely clear the motor vehicles in the intersection, resulting in traffic flow conflicts at the next phase intersection, resulting in traffic congestion; too long clearing time wastes the limited space of the intersection Traffic capacity, and it is easy to cause the driver's doubts and anxiety, and even run a red light or a yellow light, resulting in traffic violations and even accidents

In layman's terms, that is: sometimes the time of the yellow light is too short, and the motor vehicles that cross the stop line cannot all pass through, and they are blocked at the intersection to cause congestion; Outside motor vehicles wait for a long time for yellow lights and red lights, resulting in a waste of people's time and limited traffic capacity at intersections

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