A traffic light control system with high traffic efficiency

Abstract

The invention discloses a traffic signal lamp control method, device and system with high traffic efficiency. The control algorithm and control software of the present invention predict the driving efficiency and phase delay of each driving direction at the intersection and nearby road sections according to the basic parameters of the intersection and the real-time data of the vehicle detector, and then calculate the expected traffic efficiency of the combination of non-conflicting traffic directions (hereinafter referred to as the legal phase efficiency), according to the legal phase efficiency and phase delay control the traffic light status of the intersection and nearby road sections; if a certain legal phase efficiency is higher than the legal phase efficiency of the current green light, then stop the current legal phase green light and switch to that legal phase. A logical combination of phase delays in the states of traffic lights at an intersection produces a U-turn signal. The invention also includes an electronic device for performing the method described above. The invention can effectively improve the crossing traffic efficiency.

Description

technical field [0001] The invention belongs to the communication field, and in particular relates to a traffic signal light control method, device and system with high traffic efficiency. Background technique [0002] At present, most of the control methods of urban road traffic signal controllers adopt a multi-period fixed timing method, the green light time of each phase is fixed, and the phase sequence is fixed. These traffic control signal machine control methods usually cause the phenomenon that vehicles or pedestrians "wait for nothing" to switch green lights. [0003] Although some traffic signals set different timing switching times for traffic lights according to the proportion of traffic in each direction to alleviate the phenomenon of vehicles or pedestrians "waiting" for green light switching to a certain extent, the traffic in each direction is different. It changes in real time. Since the timing switching control method does not take into account the real-tim...

AI Technical Summary

Problems solved by technology

These traffic control signal control methods usually cause vehicles or pedestrians to "wait" for the green light to switch.

[0003] Although some traffic signals set different timing switching times for traffic lights according to the proportion of traffic in each direction to alleviate the phenomenon of vehicles or pedestrians "waiting" for green light switching to a certain extent, the traffic in each direction is different. It changes in real time. Since the timing switching control method does not take into account the real-time changes in the traffic flow at the intersection, in some time periods, the traffic flow on the lane with green light may be very small, while the traffic flow on the lane with red light is very small. Large, failure to fully utilize the road traffic capacity, which leads to waste of road traffic resources and reduces road traffic efficiency

[0004] In addition, although there are some signal machines that try to combine real-time data from vehicle detectors for more efficient control, they have not been widely accepted by traffic management departments due to the lack of obvious efficiency improvement, high cost, and difficult maintenance.

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