| 摘要 |
<p>The invention relates to a device for preventing vehicles from accessing a road in the wrong direction, of the type that physically force the vehicle to stop. The invention aims to prevent vehicles from entering a road in the wrong direction, for example an expressway. The invention has the advantage that the vehicles that travel in the wrong direction practically do not feel or suffer any effect. The device, which is arranged transversely to the road surface, consists of a hinged ramp-like platform which pivots on a base that is inserted below the surface level of the road, a suspension element and a step.</p> |
