"lighting columns." . . "guardrails." . . . . . . . . . . . . . . . . . . . . . . . . . "TRB's National Cooperative Highway Research Program (NCHRP) Report 665: Identification of Vehicular Impact Conditions Associated with Serious Ran-off-Road Crashes quantifies the characteristics of ran-off-road crashes and identifies appropriate impact conditions for use in full-scale crash testing."@en . . . . . . . . . . . "Identification of vehicular impact conditions associated with serious ran-off-road crashes"@en . "Identification of vehicular impact conditions associated with serious ran-off-road crashes" . . . . . . . . . . "barriers (roads)." . . "barriers (roads)" . "concrete." . . "accident records." . . "ran off road accidents." . . "impact tests." . .