A device, method and system for determining the green light duration of a traffic signal light

Abstract

The invention discloses a device, method and system for determining the green light duration of a traffic signal light, and relates to the field of traffic information perception and control. The method includes: calculating the maximum number of stranded vehicles in the lane group by using the obtained number of vehicles entering and leaving the vehicle; calculating the saturated headway by using the obtained time interval; obtaining the speed and position information of the vehicle on the vehicle unit; comparing and obtaining Key traffic flow; use the key traffic flow, preset start-up loss time and saturated headway to calculate the green light duration. The present invention utilizes the geomagnetic vehicle detector installed in each lane of the intersection and the vehicle-mounted unit installed on the vehicle to obtain the state information of all vehicles in each lane of the intersection in real time, and determines the key traffic flow of the lane according to the state information, and utilizes the key traffic flow, Preset startup loss time and saturated headway to calculate the green light duration can effectively alleviate the problem of low vehicle traffic efficiency caused by unreasonable timing of intersection signal lights.

Description

technical field [0001] The present invention relates to the field of traffic information perception and control, in particular to a device, method and system for determining the green duration of a traffic signal light. Background technique [0002] As the number of cars in China continues to increase, the problem of urban traffic congestion is becoming more and more serious. Optimizing the signal control system of single-point intersections and improving the traffic capacity of intersections have become effective means to solve this problem. Single-point intersection signal control refers to the use of traffic lights to allocate the right of way to vehicles and pedestrians operating at isolated intersections. Single-point intersection signal control is based on the traffic signal control model, and through reasonable control of the color change of intersection signal lights, it can alleviate traffic congestion, ensure smooth urban roads, and avoid traffic accidents. At the...

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a device, method and system for determining the duration of a traffic signal light green light, which solves the problem of low vehicle traffic efficiency in the existing method for determining the duration of a signal lamp

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