Direction-switchable urban expressway planar ramp control system

Abstract

The invention relates to a direction-switchable urban expressway planar ramp control system, which is mainly used for solving the vehicle queue problem at the urban planar ramp caused by the current ramp opening quantity limitation and the fixed ramp form, so that the driving direction of the planar ramp allowed to pass in different periods is changeable. The direction-switchable urban expresswayplanar ramp control system includes a detector, a display and a special ramp disposed between an adjacent upstream exit ramp and a downstream entry ramp. The specific working methods are: if the detector detects the congestion of the main lane, the special ramp is switched to the exit ramp; and if the detector detects that the main lane is clear and the auxiliary lane is congested, the special ramp is switched to the entrance ramp. Through the real-time traffic state detection, the ramp form is determined and changed, so as to effectively solve the problem of low traffic efficiency at the urban expressway planar ramp caused by the limited number of ramp openings and the fixed ramp form.

Description

technical field [0001] The invention relates to a direction-switchable urban expressway plane ramp control system. Background technique [0002] The level ramp is an important traffic facility to solve the problem of urban traffic flow from the main road to the auxiliary road or from the auxiliary road to the main road. important role. [0003] At present, many urban expressways in our country have the problem of dense ramp openings along the road, which will frequently interfere with the traffic flow on the road, resulting in the reduction of the expressway's ability to undertake long-distance travel and the impact of vehicle speed. In terms of the choice of entrance and exit forms, due to the unreasonable traffic design stage and the instability of travel demand, it often occurs that the utilization rate of the entrance ramp is low and the queue of vehicles on the main road at the exit ramp is too long, or the utilization rate of the exit ramp is low and the entrance ramp...

AI Technical Summary

Problems solved by technology

[0003]At present, many urban expressways in our country have the problem of dense ramp openings along the road, which will frequently interfere with the traffic flow on the road, resulting in long-distance travel on the expressway The function of the vehicle is reduced, and the driving speed of the vehicle is affected

In terms of the choice of entrance and exit forms, due to the unreasonable traffic design stage and the instability of travel demand, it often occurs that the utilization rate of the entrance ramp is low and the queue of vehicles on the main road at the exit ramp is too long, or the utilization rate of the exit ramp is low and the entrance ramp is low. Excessive queues of vehicles on auxiliary roads

This greatly affects the utilization rate of urban expressways and the operational efficiency of urban road traffic flow

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