Function Transformation Method of Variable Guidance Lane at Intersection in Vehicle-Road Cooperative Environment

Abstract

The invention discloses a method for changing the function of a variable guide lane at an intersection under a vehicle-road collaborative environment. It determines whether to trigger the variable guide lane based on the saturation of each turning traffic flow and combined with signal timing and speed induction. Specifically, it includes: when the left When the saturation of turning and straight traffic flow is both less than 0.8, only normal speed induction is performed on the vehicles; when the saturation of straight traffic flow is less than 0.8 and the saturation of left-turn traffic flow is greater than 0.8, normal speed induction is performed on straight vehicles and left-turning vehicles. In the case of high saturation speed induction, the signal timing is also adjusted to reduce the left-turn traffic saturation. If the left-turn and straight traffic flow saturation are both less than 0.8 after speed induction and signal timing optimization, the variable lane will not be changed. Otherwise, the variable lane will not be changed. Change the variable guide lane function; when the saturation of left-turn and straight traffic flow is both greater than 0.8, only speed induction suitable for high saturation will be performed on the vehicle.

Description

technical field [0001] The invention belongs to the field of road traffic control, and in particular relates to a method for determining the function transformation of a variable guiding lane by adopting different strategies according to different road saturations in a vehicle-road collaborative environment. Background technique [0002] With the development of social economy, the number of automobiles has increased sharply, and traffic congestion has become increasingly serious. Urban intersections are often the key nodes that cause congestion, so improving the traffic efficiency of intersections can significantly alleviate traffic congestion. [0003] In traditional signalized intersections, the lane function is usually kept unchanged, and signal adjustment is adopted to cope with the change of traffic demand. The queue is too long, or the current phase of the opposite traffic flow causes a waste of time and space resources due to the increased green light time, so the va...

AI Technical Summary

Problems solved by technology

[0003] In traditional signalized intersections, the lane function is usually kept unchanged, and signal adjustment is adopted to cope with the change of traffic demand. The queue is too long, or the current phase of the opposite traffic flow causes a waste of time and space resources due to the increased green light time, so the variable directional lane came into being

At this stage, the conversion of variable guiding lanes is basically regulated manually, which may cause problems such as inappropriate timing and low efficiency.

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