Traffic adaptive control method and traffic adaptive control device

Abstract

The embodiment of the present invention provides a traffic adaptive control method and a traffic adaptive control device. The method comprises the steps of acquiring first type traffic status parameters corresponding to the traffic status of a first straight going phase in a green wave direction of a current intersection; acquiring second type traffic status parameters corresponding to the traffic status of the first straight going phase in the green wave direction of an upstream intersection; determining a first green light turn-on moment of the first straight going phase of the current intersection according to the first type traffic status parameters and the second type traffic status parameters; determining a first green light duration corresponding to the first straight going phase of the current intersection according to the first type traffic status parameters and the second type traffic status parameters; turning on a green light of the first straight going phase of the current intersection at the first green light turn-on moment, and controlling the green light duration as the first green light duration. According to the traffic adaptive control method and the traffic adaptive control device of the present invention, by adjusting the turn-on moment and duration of the green light of traffic lights, the vehicles as many as possible can pass through various traffic light intersections of a green wave band while not stopping.

Description

technical field [0001] The invention relates to the field of traffic signal control, in particular to a traffic adaptive control method and device. Background technique [0002] Urban traffic adaptive control systems have been introduced more and more into China's urban signal light control systems, among which SCOOT in the UK and SCATS in Australia are relatively mature technologies. However, the system currently has two important problems: the poor real-time optimization capability of the phase difference and the solidification of alternatives, which limit the application of the adaptive control system in the green-wave coordinated control of trunk lines. Some scholars have proposed some solutions. [0003] A relatively simple implementation method is to release information to guide the driver's driving behavior. When it is detected that the vehicle can pass through the downstream intersection at the current speed, a stable driving speed is recommended to the driver; when...

AI Technical Summary

Problems solved by technology

However, there are currently two important problems in this system: the poor real-time optimization ability of phase difference and the solidification of alternatives, which limit the application of this adaptive control system in the green wave coordinated control of trunk lines

This method can simplify the design of the phase difference in the direction of the green wave, but due to the inconsistency of the traffic flow characteristics at each intersection, it will cause some waste of green light time, which is not conducive to improving the overall capacity of vehicles in all entrance directions at the intersection

The green wave control with the whole green wave belt as the research target usually requires each intersection and the central control machine to communicate with each other, and finally send the configuration parameters back to the signal light group. The whole process needs to transmit a large number of data, and the overall optimization method based on the original data has a large amount of calculation, which is not conducive to the realization of real-time green wave control

Images