The problem of road safety has become very important in recent years, primarily on account of the growth in vehicular density, axle load and speed. Over the years the safety requirements of road users have been defined more clearly and technology has been refined to offer most optimal solutions. Guardrails are the best means of guaranteeing safety on all types of roads and in particular on expressways, motorways, highways and main roads on fast stretches, sharp curves, close to cliffs, embankments, bridges and canals. The primary function of Guardrails is to prevent vehicles from leaving the road or from crossing over to the other carriageway or slopes. The design and metallic structure of the barrier guarantees a degree of elasticity and deformability, capable of dissipating the energy induced by impact with the vehicle.