The boxes (1) holding the front plate (5) and connected to the rear plate (6) have flanges bolted to these plates and are designed to crumple under load. There are pairs of flat plates (3) mounted on hinges (12) at the ends of the boxes. They form peaked r...

The invention relates to a road barrier that can be mounted on the rear of a vehicle (1) for securing a road construction site, comprising a vertical warning sign (7) and an impact damper (4) against rear-end collisions, wherein the impact damper (4) can b...