The patent pending solution has been tested with very good results according to EN 1317-2, capacity class T3. The design of the barrier minimizes crash force for drivers in the event of a collision and is free of sharp edges/protruding parts that could pose risks to MC and GC road users. The low center of gravity reduces the risk of tipping. The unique self-locking coupling, together with the guiding spigot end, means that assembly is quick and easy, without pinching risks for hands or feet. The barriers can also be stacked without litter, which means that work at height can be avoided.