In-depth accident investigation programs were conducted specifically to collect data for evaluation of the efficacy of the 1974 and 1975 restraint systems. Stratified random sampling techniques were used to collect data on 1973-1975 American passenger cars in towaway accidents. Occupants of 1974 cars used restraints substantially more frequently than occupants of 1973 cars. Use of full restraints by these occupants increased by a factor of eight over their use in 1973 cars. Use of the full restraint in 1975 cars was lower than in 1974's, but still more than seven times as great as in 1973 cars. There was no measurable difference in the incidence of moderate or worse injuries in the three model years. Nevertheless, restraint systems in these cars demonstrated a substantial capability to reduce the incidence of moderate or worse injury when they were used. Lap belts alone reduce the probability 27% compared to no restraint. The lap and upper torso belts together reduce the probability 21%, compared to the lap belt alone, and 42%, compared to no restraint.


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    Title :

    An Evaluation of the 1974 and 1975 Restraint Systems


    Contributors:
    R. E. Scott (author) / J. D. Flora (author) / J. C. Marsh (author)

    Publication date :

    1976


    Size :

    178 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




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