Intersection traffic signal control method and system having multi-dimensional detection function

Abstract

The invention provides an intersection traffic signal control method and system having a multi-dimensional detection function. With the method and system, the ponding height of an intersection and visibility as well as whether the pavement is slippery or snow covers the pavement can be monitored in real time. A signal lamp is controlled according to the stopping frequency of motor vehicles at a red light in different directions; and a motor vehicle entering the intersection can be monitored under the circumstance that water accumulated at the intersection in a certain range and the ponding height exceeds a set threshold value or the pavement is slippery or snow covers the pavement. Whether motor vehicles at the intersection are driven away is determined; and if not, full-red time of the signal lamp is prolonged until all motor vehicles at the intersection are driven out of the intersection. Therefore, under the circumstance that the ponding height exceeds the set threshold value or the pavement is slippery or snow covers the pavement, vehicles can pass by the intersection successfully while security is ensured, so that the traffic jam at the intersection can be avoided.

Description

technical field [0001] The invention relates to the field of intersection signal control, in particular to an intersection traffic signal control method and system with a multi-dimensional detection function. Background technique [0002] At present, the intersection signal controllers and systems commonly used at home and abroad were developed in the 1970s. Due to the limitations of the detection methods at that time, only the cross-section detection technology, that is, point detection, was considered. With the development of the signal control system With the wide application in the world, more and more problems are encountered. For example: whether the results of the cross-section detection can reflect all the trajectory data of the motor vehicle passing through the intersection, and the deviation of the control algorithm cannot be corrected due to the difference in the level of the driver. Moreover, the current control method for signal lights at intersections is the s...

AI Technical Summary

Problems solved by technology

For example: whether the results of the section detection can reflect all the trajectory data of the motor vehicle passing through the intersection, and the deviation of the control algorithm cannot be corrected due to the difference in the level of the driver

Moreover, the current control method for signal lights at intersections is the same as the signal light control method and cycle used under normal conditions when encountering bad weather such as wet roads, ponding, and snow.

Images