This research was conducted to identify and investigate aspects of NCHRP Report 230 which require additional technical research. This report deals with five broad areas of concern: (1) the importance and effect of soil conditions on the dynamic performance of barriers, (2) methods for re-evaluating pre-Report 230 test results in light of the current Report 230 criteria, (3) linking the occupant risk factor to "real-world" accident cases, (4) assessing the potential hazards of the redirected vehicle, and (5) replacement of the 4500-lb test car. See also FHWA/RD-87/O96 - Volume I - Executive Summary; FHWA/RD-87/097 - Volume II - The Effect of Soil Strength on Longitudinal Barrier Performance; FHWA/RD-87/098 - Volume III - Evaluating Pre-Report 230 Crash Tests; FHWA/RD-87/100 - Volume V - Hazards of the Redirected Car; and FHWA/RD-87/101 - Volume VI - Replacing the 4500-lb Passenger Sedan in Report 230 Tests.
Samenvatting