Control method of straight-right variable guide lane considering conflict between pedestrians and right-turning vehicles

Abstract

The invention discloses a control method of a straight-right variable guide lane considering conflict between pedestrians and right-turning vehicles. The control method switches an entrance lane variable guide lane function between a straight-right lane and a right-turning special lane in due time, and reduces the conflict between a right-turning traffic flow and pedestrians crossing a street under the condition of considering the passing efficiency of a straight traffic flow. The control method mainly comprises the steps of intersection road and traffic information acquisition, right-turningvehicle proportion estimation in a straight-right guide lane, saturated traffic capacity of right-turning traffic flow in green light time, variable guide lane function judgment based on the trafficcapacity of the right-turning traffic flow and the like. According to the control method, the function of the variable guide lane can be converted into a special right-turning function when the conflict between pedestrians crossing the street and right-turning vehicles is increased, straight-going vehicles are prevented from entering lanes with low traffic efficiency, and the traffic operation safety of the intersection is ensured; and when the conflict between the right-turning vehicles and the pedestrians crossing the street is not serious, the variable guide lane can be converted into the straight-right shared lane, so that the space-time resource utilization rate of the road intersection is improved.

Description

Technical field [0001] The present invention relates to the field of traffic management and control, in particular to an estimation of the proportion of straight-right vehicles in a straight-right variable steering lane, calculation of the saturated capacity of right-turning traffic, and the calculation of the capacity of the right-turning traffic in consideration of the conflict between pedestrians crossing the street and right-turning vehicles at an intersection. The method for determining the function switching of the steering lane. Background technique [0002] Generally, when the flow of right-turning traffic is less than 300veh / h / ln, or the flow of straight-going traffic does not exceed 450veh / h / ln, and when space conditions are restricted, there is no need to set up a right-turning dedicated entrance lane, and the right-turning and straight-going share the rightmost side The way of guiding the lane allows the right-turning traffic to obtain the right of way during the red ...

AI Technical Summary

Problems solved by technology

The dynamics of traffic flow make the traffic flow of straight-going and right-turning vehicles in different time periods constantly changing. Usually, the intersection signal timing scheme is changed to adapt to the dynamics of traffic flow. As far as the road is concerned, it is difficult to improve the conflicts between right-turning vehicles and straight-going traffic in the same direction, as well as crossing pedestrians and non-motorized vehicles caused by the increase in right-turning traffic.

At present, the optimization of space resources for intersection entrances mostly focuses on how to match the guide lane with the traffic demand of left-turn traffic flow and through traffic flow, while ignoring the influence of right-turn traffic flow on the through traffic flow and cross-street pedestrian flow. Low circulation efficiency, escalating conflicts between pedestrians and vehicles at intersections, etc.

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