Traffic barrier

Traffic guardrail is a kind of traffic safety facility set at the outer side of road shoulder, traffic separator and pedestrian road teeth. Absorb collision energy through self deformation or vehicle climbing, so as to change the driving direction of the vehicle, prevent the vehicle from crossing the road or entering the opposite lane, and greatly reduce the injury to passengers.

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Roadside guardrails are used to protect vehicles and people inside vehicles from collision with natural or artificial objects located beside the road. It is important to note that a vehicle striking a traffic barrier may damage both the vehicle/passenger and the barrier itself. The damage caused by collision with guardrails is usually not as serious as that caused by collision with components located behind guardrails, so traffic guardrails represent a compromise between these two considerations. In addition to protecting vehicles, traffic barriers are also used to shield pedestrians, maintenance/construction personnel, or cyclists from uncertain traffic. In its most basic form, the traffic barrier is designed to prevent vehicles leaving the roadway from hitting fixed objects. The guardrail first blocks an accident vehicle and then makes it change direction. Because of the variability of vehicle impact and the destructive effect at high speed, comprehensive full-scale destructive tests should be introduced to ensure the safety and reliability of the traffic barrier to be used.

There are many sizes and shapes of guardrails that can be used. The choice of guardrail type depends on many factors, including the environment, speed and traffic volume of the highway

The functions of traffic barriers include:

The first is to prevent vehicles from rushing out of the road and causing rollover accidents, especially the traffic barriers set at mountain curves and dangerous roads. For motor vehicle drivers, sufficient attention can be paid at a distance to make them more alert. When passing, they can also guide the driver's vision to help them operate correctly,

Second, it can prevent the frontal collision of opposite vehicles, and prevent the collision and hanging of vehicles in the same direction;

Third, it can prevent vehicles from colliding with pedestrians and pedestrians from crossing the road at will.

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