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A vehicle control system installed at the borders and central reservations of roads whose purpose is to restrain a vehicle that is out of control, avoiding all dangerous obstacles such as: signposts, lighting posts, structures, embankments, etc.
These can be:
- Flexible guard rails: these deform during the impact of a vehicle. They are metallic guard rails and prefabricated cement ones not anchored to the foundation.
- Rigid guard rails: movements suffered during impact are less than the support base of the guard rail. They are cement guard rails anchored to the foundations.