Abstract
To aid the development of safety fences for the containment of heavy goods vehicles where a high level of containment is essential, accidents where fences are damaged are being investigated. The type of accidents visited are all those where a fatality has occurred and those involving heavy goods vehicles within an area of 130 km radius of the transport and road research laboratory. The data collected have been used to set up the conditions for full-scale controlled tests which relate to actual on-road impacts. (A) This is paper 2 of the TRRL papers presented to the 1986 TRB annual meeting.