Abstract
The National Crash Severity Study (NCSS) is a major accident data collection program of which the data collection began in Jan. 1977 and terminated in March 1979. This factbook presents tabulations of these data. The study collects detailed information on passenger cars (and their occupants) in crashes which were severe enough to disable a car. Pedestrian accidents, and other accidents in which vehicles did not have to be towed away are excluded from this study. Described are also the crash conditions and consequences e.g. the proportion of serious injuries occuring in passenger cars with frontal damage.