Vehicle security barriers – Part 1: Performance requirements and vehicle impact test method
IWA 14-1:2013 is the International Workshop Agreement which specifies the essential impact performance requirement for a vehicle security barrier (VSB) and a test method for rating its performance when subjected to a single impact by a test vehicle not driven by a human being.
The VSB system foundation shall be classified according to the following:
Freestanding; having no ground fixing
Surface mounted but also pinned or bolted to the ground
Depth <0.5m below ground level
Depth >0.5m below ground level