Traffic guidance system and method for intersection under urban viaduct

Abstract

The invention discloses a traffic guidance system and method for an intersection under an urban viaduct. The traffic guidance system comprises a plurality of left-turn guide bricks, a first left-turnsignal brick, a left-turn arrow brick and a microcontroller; the plurality of left-turn guide bricks are arranged along the diversion line of a left-turn waiting region; the first left-turn signal brick is arranged on the front side of the left-turn stop line of the left-turn waiting area; the light-emitting color of the first left-turn signal brick is synchronous with the light-emitting color ofa left-turn lamp in motor vehicle signal lamps; the left-turn arrow brick is arranged in the left-turn waiting area; the input end of the microcontroller is electrically connected with the motor vehicle signal lamps; and the output end of the microcontroller is electrically connected with the left-turn guide bricks, the first left-turn signal brick and the left-turn arrow brick. According to the traffic guidance system and method for the intersection under the urban viaduct of the invention, the left-turn waiting area of a dark area formed by the shielding of the surface of the viaduct at theintersection is lightened, so that motor vehicles can be guided to pass through the left-turn waiting area, the situation that a motor vehicle driver collides with a bridge pier or a safety island used for isolating the bridge pier due to the fact that the motor vehicle driver cannot see the diversion line clearly can be effectively prevented, and traffic safety is improved.

Description

technical field [0001] The invention belongs to the technical field of road traffic equipment, and in particular relates to a traffic guidance system and method for intersections under urban viaducts. Background technique [0002] With the acceleration of the urbanization process, cars, buses and other motor vehicles are widely used, and the traffic pressure is also increasing. Due to the limited road traffic space in cities, many cities build multi-level road traffic systems by building viaducts. Although viaducts have certain effects in linking traffic congestion and improving traffic conditions, they have caused some damage to road traffic on the ground floor. Negative impacts, conflicts are mainly concentrated at the intersection under the viaduct. These road intersections differ from normal level intersections in at least the following ways: [0003] 1) Larger footprint: There are two-way four-lane or six-lane roads on the ground along the line. When intersecting with...

AI Technical Summary

Problems solved by technology

[0004] 2) Poor sight distance: There are viaduct piers in some areas of the intersection. Since the viaduct bridge deck blocks the sight of left-turn motor vehicle drivers, drivers cannot clearly see the marking lines of the left-turn waiting area on the road surface, thus It is very easy to collide with the pier or the safety island used to isolate the pier, causing traffic accidents;

[0005] 3) Insufficient safety measures for pedestrian crossing: due to the lack of necessary supporting traffic facilities for pedestrian crossing safety, it is not easy to set the pedestrian crossing line between the motor vehicle stop line and the left-turn waiting area at night or when the bridge deck blocks light seriously. Being discovered by motor vehicle drivers in time, coupled with the lack of traffic law awareness of many pedestrians, it is not uncommon for people to cross the street at red lights, and collisions between motor vehicles and pedestrians often occur in pedestrian crossing areas, seriously threatening the safety of pedestrians crossing the street

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