System and method for self-adaptive turning left by way of video detection

Abstract

The invention discloses an adaptive left-turn system and method based on video detection. The left-turn opening of the exit road and the left-turn lane of the entrance road are arranged at the dividing line between the left-turn lanes of the exit road and the left-turn opening of the adjacent passageway. The exit lane is the left-turn lane of the bypass lane, and the left-turn lane of the bypass lane is used for vehicles to drive forward from the left-turn lane of the entrance road into the left-turn lane of the bypass lane; The left-turn traffic signal controller makes logical judgments based on the number of queuing vehicles, and generates a state control signal of the left-turn signal light; traffic status. The invention utilizes the space of the exit road to set the left-turn lane, reasonably sets the signal control mode, cleverly utilizes the time and space relationship of the intersection, improves the traffic capacity of the left-turn vehicle, and ensures the traffic efficiency of the intersection.

Description

technical field [0001] The invention belongs to the technical field of intelligent transportation, and relates to a video detection-based self-adaptive left-turn system and method. Background technique [0002] The large traffic flow in one-way lanes at intersections has always been a difficult problem in traffic control and management. In the face of the increasingly normalized traffic congestion, traffic management departments in their daily work, in order to ensure the smooth flow of the main road, the green signal ratio of the left-turn phase will be relatively high. Small, turning left and waiting in line at the red light will take longer. There are generally two ways to solve the large left-turn traffic flow in one direction: one is to alleviate the congestion of left-turn lanes at intersections by increasing the number of lanes; the other is to increase the left-turn release time to meet left-turn demand. [0003] At present, signal control is mainly through adding l...

AI Technical Summary

Problems solved by technology

[0003] At present, signal control is mainly through adding left-turning phases and increasing the time of left-turning phases. Too much increase in left-turning phases will lead to empty discharge phenomenon or too long cycle, resulting in too long waiting time for red lights in other phases, causing violations of laws and regulations. resulting in frequent traffic accidents

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