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Car Mass and Likelihood of Occupant Fatality
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Abstract
The purpose of this work is to estimate the relationship between car mass and the likelihood that a car will have an occupant fatality. Car occupant fatalities in the 1978 Fatal Accident Reporting System (FARS) data were divided into those killed in two car crashes and those killed in non-two car crashes. The relationship between car mass and the relative likelihood of an occupant fatality in non-two car crashes was determined by examining the number of fatalities in cars of a given mass driven by drivers of a given age divided by an estimate of the number of registered cars of the same mass having owners of the same age. This involves assuming that owners and drivers are the same people -- clearly an approximation. This and other assumptions were necessary because of data limitations.
The relationship between car mass and the relative likelihood of a fatality in a two car crash was determined using the FARS data and the assumption that when cars of the same mass crash, the relative likelihood of an occupant fatality has the same relationship with mass as determined in the non-two car crash analysis. The overall relationship between car mass on likelihood of an occupant fatality was obtained by taking a weighted average of the non-two car and two car cases. Because occupancy rates depend on car mass, the analysis was performed for drivers only as well as all occupants.
This study finds that the likelihood that a car has an occupant or driver fatality is related to the mass of the car. The relationship found may be illustrated by the comparison of fatality likelihoods in 900 kg and 1800 kg cars shown below:
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Citation
Evans, L., "Car Mass and Likelihood of Occupant Fatality," SAE Technical Paper 820807, 1982, https://doi.org/10.4271/820807.Data Sets - Support Documents
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References
- Campbell, B. J. Reinfurt, D. W. “The Relationship Between Driver Crash Injury and Passenger Car Weight,” Highway Safety Research Center, University of North Carolina Chapel Hill, N.C. 1973
- Joksch, H. C. “Analysis of the Future Effects of Fuel Shortage and Increased Small Car Usage upon Traffic Deaths and Injuries,” January 1976
- Smith, J. E. K. O’Day, J. “Simpson’s Paradox - An Example Using Accident Data from the State of Texas,” Accident Analysis and Prevention
- Meta, D. F. “How Safe Can We Be in Small Cars?,” Proceedings of the Third International Congress on Automotive Safety July 15–17 1974 San Francisco
- Stowell, C Bryant, J. “Safety Belt Usage: Survey of the Traffic Population,” Kirschner Associates, Inc., for National Highway Traffic Safety Administration January 1978
- Opinion Research Corporation “Highlights of Four Research Studies,” National Highway Traffic Safety Administration Princeton, New Jersey 1980
- Wasielewski, P. F. “The Effect of Car Size on Headways in Freely Flowing Freeway Traffic,” Transportation Science
- Evans, L Wasielewski, P. “Risky Driving Related to Driver and Vehicle Characteristics,” November 1981
- “Technology Assessment of Changes in the Future Use and Characteristics of the Automobile Transportation System,” Congress of the United States, Office of Technology Assessment February 1979
- Kanianthra, J. N. Boehly, W. A. “Safety Consequences of the Current Trends in U.S. Vehicle Population,”
- October 1981
- Bunch, H. M. “Smaller Cars and Safety: Effect of Downsizing on Crash Fatalities in 1995,” The HSRI Review 9 3 Nov.–Dec. 1978
- Grime, G. “The Protection Afforded by Seat Belts,” 1979
- Huelke, D. F. Sherman, H. W. Murphy, M. J. Kaplan, R. J. Flora, J. D. “Effectiveness of Current and Future Restraint Systems in Fatal and Serious Injury Automobile Crashes,” Society of Automotive Engineers, SAE Paper 790323 February 1979