A guardrail is a protective barrier placed along the edges of roads, highways, or bridges to prevent vehicles from going off the road or hitting dangerous obstacles. It is typically made of metal, wood, or plastic and is designed to absorb the impact of a vehicle that might stray from the road, helping to minimize damage and injury. Guardrails are especially important on sharp curves, steep slopes, or areas with high traffic, where accidents are more likely to occur. They provide safety by acting as a barrier between the vehicle and risky areas, such as cliffs or bodies of water.

What is a "guardrail"?

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