Roberto Impero, chief executive of SMA Road Safety, and Stefano Caterino, head of SMA's marketing, urge a major rethink about how European crash cushions and end terminals are tested for safety certification.
The highest containment level H4b offers the best possible protection by safely redirecting errant vehicles and preventing them from breaking through the barrier upon impact. The H4b barrier restrains the impact of a 38tonne truck driving at 65km/h (TB81, according to EN 1317-1/2).