A guardrail is a barrier designed to prevent vehicles from leaving the roadway and to redirect them safely back onto the road in the event of an accident.
A W beam guardrail is a common type of guardrail system that consists of a steel rail shaped like the letter "W" that is mounted on posts alongside the road. The W beam is designed to absorb the impact of a vehicle, which can help reduce the severity of the crash.
Safety yellow is a common colour used to paint guardrails, as it provides high visibility and helps to alert drivers to the presence of the barrier. This can help prevent accidents by making drivers more aware of the road's edge and any potential hazards.
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