Pavement guiding device for avoiding intersection dilemma area

Abstract

The invention relates to the technical filed of traffic safety and specifically relates to a pavement guiding device for avoiding an intersection dilemma area. The invention provides the pavement guiding device for avoiding the intersection dilemma area. The pavement guiding device is mainly formed by function units of a detection unit, a communication unit, a master control unit, an indication unit and a power supply unit and the like, and is mainly used for carrying out speed detection on vehicles entering an entrance lane of an intersection, intersection phase timing information extraction, and situation assessment and indication for the vehicles trapped in the intersection dilemma area and the like during the green light switching period, thereby avoiding the vehicles being trapped in the intersection dilemma area and reducing road accidents of vehicle rear collision, scratching, side impact and oblique impact and the like as well as the illegal behavior of vehicle red light running happening in the intersection dilemma area. Meanwhile, serving as a traffic detector, the device provides data support for signal timing optimization of the intersection.

Description

technical field [0001] The invention relates to the technical field of traffic safety, in particular to a road surface guiding device for avoiding intersection distressed areas. technical background [0002] According to incomplete statistics, among all kinds of traffic accidents that occur in my country every year, 59% of traffic accidents occur at intersections, and the number of traffic accidents that occur during the green light transition period (including yellow light signals) at signalized intersections accounts for about 50% of traffic accidents at intersections. 50% of. From the perspective of traffic engineering and kinematics: when a vehicle enters a signalized intersection and encounters a green light signal that is converted into a yellow light signal, according to the vehicle's position, speed, braking performance, road conditions, traffic flow environment and driving If the distance between the vehicle and the stop line at the intersection is less than the min...

AI Technical Summary

Problems solved by technology

From the perspective of traffic engineering and kinematics: when a vehicle enters a signalized intersection and encounters a green light signal that is converted into a yellow light signal, according to the vehicle's position, speed, braking performance, road conditions, traffic flow environment and driving If the distance between the vehicle and the stop line at the intersection is less than the minimum safe stopping distance that the vehicle can decelerate and stop, and is greater than the maximum safe passing distance that can accelerate to pass (this interval is called "distress interval") , the vehicle will fall into the predicament that it can neither stop safely nor pass safely. No matter what choice the driver makes, emergency braking or running a red light will inevitably occur, which will easily lead to rear-end collisions, scratches, side collisions, oblique collisions, etc. Accident; if the distance between the vehicle and the stop line at the intersection is greater than the minimum safe stopping distance for the vehicle to decelerate and stop, and less than the maximum safe distance for speeding up (this interval is called the "hesitation interval"), the driver will fall into hesitation It is the dilemma of choosing to stop and wait or choose to speed up and pass. If the front and rear vehicles in this section make opposite decisions, that is, the vehicle in front chooses to stop and the vehicle behind chooses to pass, then the two vehicles will have rear-end collisions, scratches, oblique collisions and other traffic accidents. chances will be greatly increased

At the same time, the time available for the driver to make a choice is extremely short, and the driver may fall into the predicament of "dilemma interval" during the period of hesitation

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