Restraint use and effectlveness as estimated from U.S. accident files and observational surveys

Van Dyke, John; Springer, Glenn A.

Affiliations

¹National Highway Traffic Safety Administration

Abstract

The paper begins with an abbreviated history of passenger car restraint regulation and use in the United States. Selected studies which estimated usage and effectiveness for the period 1963 to 1977 are referenced and corresponding estimates are given. Accident data files and observational surveys from which more recent (post-January 1, 1977) estimates can be obtained are then described. Restraint usage rates obtained from these sources are presented. Factors which influence usage such as occupant role and vehicle size are addressed and comparisons between sources are made to determine consistency. Overall estimates of usage are given. Restraint effectiveness is defined and estimates of injury and fatality reduction are given as calculated from these accident data sources. Overall estimates are given for injury and fatality reducing effectiveness. Finally, the benefits of wearing belts are quantified in terms of lives saved and injuries prevented.

Cited By (1)

Year	Entry
1987	Chillon C, Brutel G, Mauron G, Hartemann F, Henry C, Thomas C. Comparison between the three-point belt and the air cushion evaluation and discussion of their cost-efficiency ratio. In: Proceedings of the 11th International Technical Conference on Experimental Safety Vehicles (ESV). May 12-15, 1987; Washington, DC.511-523.