Intelligent vehicle-road cooperation uncontrolled intersection left-turn vehicle passing guiding method

Abstract

The invention provides an intelligent vehicle-road cooperation uncontrolled intersection left-turn vehicle passing guiding method, which relates to the technical field of vehicle-road cooperation and safety control in an intelligent traffic system. The method comprises the following steps of firstly, acquiring position and speed information of a vehicle, detecting the number of vehicles and slow traffic information of each lane in an intersection communication area in real time, and determining a conflict area, counting the passing right of the traffic flow conflicting with the left-turn vehicle, according to information interacted between the vehicle-mounted units and the roadside unit and information interacted between the vehicle-mounted units, calculating the neutral position passing time of the left-turn vehicle and the motor vehicle and the passing acceleration of the left-turn vehicle, the passing acceleration of the left-turn vehicle and the non-motor vehicle and the passing acceleration of the left-turn vehicle and the pedestrian, and finally, calculating the safety speed of the left-turn vehicle following vehicle. The method can effectively solve or relieve the traffic safety problem of left-turn vehicle passing at the uncontrolled intersection, so that the vehicle passes through the intersection in a non-stop state as much as possible, and the passing efficiency and comfort are improved.

Description

technical field [0001] The invention relates to the technical field of vehicle-road coordination and safety control in an intelligent transportation system, in particular to a method for guiding left-turn vehicles at intelligent vehicle-road coordination uncontrolled intersections. Background technique [0002] There are no control measures at uncontrolled intersections, and vehicles have no rules to follow when driving at uncontrolled intersections, especially accidents at uncontrolled intersections with poor sightlines are more serious. The problem of traffic accidents caused by left-turning vehicles is even more serious. In the past, the research on the safety problems caused by left-turning vehicles at intersections mainly focused on traffic influencing factors such as people, vehicles, roads, and traffic environment, and their relationship with traffic accidents. Based on this analysis, improve road design, strengthen traffic control measures, etc., or install active an...

AI Technical Summary

Problems solved by technology

[0002] There are no control measures at uncontrolled intersections, and vehicles have no rules to follow when driving at uncontrolled intersections, especially accidents at uncontrolled intersections with poor sightlines are more serious

The problem of traffic accidents caused by left-turning vehicles is even more serious. In the past, the research on the safety problems caused by left-turning vehicles at intersections mainly focused on traffic influencing factors such as people, vehicles, roads, and traffic environment, and their relationship with traffic accidents. Based on this analysis, improve road design, strengthen traffic control measures, etc., or install active and passive safety devices on vehicles to improve road safety, but traditional design, control and management technologies can only reduce traffic to a certain extent. The number of conflicts in the flow or the severity of conflicts cannot be effectively prevented from happening, and the safety benefits of intersections cannot be optimal, and it is even more difficult to solve traffic problems in essence, and it is impossible to improve the safety level of uncontrolled intersections.

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