Samenvatting
The various factors which have played a role in the development of a new type of obstacle barrier designed specifically to meet the requirements of the road system in the Netherlands are examined. Research leading to the development of a crash cushion called RIMOB is reported. Its purpose is to prevent collisions against individual rigid obstacles. The basic concept is a configuration of tubes which ripple on impact. The RIMOB as a whole functions as a concertina. It is very easy to replace damaged parts, which makes maintenance relatively cheap. The RIMOB is meant for the protection of gantry posts at motorway exits and piers of viaducts. This report is an English translation of IRRD 265958.