Method for triggering transformation of steering function of variable guidance lanes at urban intersections

Abstract

The invention discloses a method for triggering transformation of a steering function of variable guidance lanes at urban intersections. The method comprises the following steps of: arrangement of two rows of coil detectors; and triggering method and flow of transformation of the steering function of the variable guidance lanes. In the method, from the most intuitive expression of the steering unbalance traffic for which the variable guidance lane is suitable, namely, each steering queuing length is obviously different, each steering queuing state and each steering queuing difference are judged according to the occupation condition of the two rows of detectors, and each steering saturation level is judged further, thus, a flow for specifically judging the transformation of the steering function of the variable guidance lane is provided, the utilization rate of the variable guidance lane is improved, the queuing length of an entrance lane is shortened, and the delay of vehicles at the intersections is reduced.

Description

technical field [0001] The invention belongs to the field of road traffic control, and in particular relates to a trigger method for steering function conversion of a variable guiding lane. Background technique [0002] When traditional signal-controlled intersections are set up, the lane functions are usually kept unchanged, and signal adjustments are used to respond to changes in traffic demand. This method can adapt to the situation where the traffic volume of each turn at the entrance has small fluctuations, but for those entrances with obvious fluctuations in the traffic volume of each turn at different times, it will often cause the opposite traffic flow in the same phase to increase due to the increase in the passing time of the green light. Waste of resources, or cause a single steering traffic queue to be too long and cause congestion. At this stage, the transformation of the steering function of the variable steering lane often requires the traffic police to obser...

AI Technical Summary

Problems solved by technology

This method can adapt to the situation where the traffic volume of each turn at the entrance has small fluctuations, but for those entrances with obvious fluctuations in the traffic volume of each turn at different times, it will often cause the opposite traffic flow in the same phase to increase due to the increase in the passing time of the green light. Waste of resources, or cause a single steering traffic queue to be too long and cause congestion

At this stage, the transformation of the steering function of the variable steering lane often requires the traffic police to observe and control the traffic volume at the intersection in real time. This subjective judgment often results in inappropriate transformation time, traffic jams or violations, and there are also problems such as low utilization rate.

[0003] Previous studies have proposed methods such as induction control, double stop line control, main and pre-signal control, but the proposed process is not very operable in actual implementation, and it is difficult to obtain and collect parameters

Images