At major intersections the ‚Hedgehog‘ is stored in special storage systems mounted at the traffic lights. During a power failure the locking system is inactive and can be opened. Inside the storage is the ‚Hedgehog‘ and coatings for the traffic signs. By removing a small battery activates the red lights at the intersection for a few minutes. This allows the person to build up the ‚Hedgehog‘ on the intersection. Therefore it is placed on the ground and fastened by a simple vacuum-mechanism.
By pulling the handle, the ‚Plastimo-Ignition System‘ which is also used in life buoys, is activated. After 10 seconds a small gas capsule inflates the double wall system of the ‚Hedgehog‘. With its fluorescent imprinted arrows the new roundabout can be seen from a distance and provides a regulated traffic. The no longer valid road signs can now be covered with the new coatings. The inflatable model can also be used in case of accidents or road works.