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Impact Attenuation Devices for Racing
ISSN: 0148-7191, e-ISSN: 2688-3627
Published November 16, 1998 by SAE International in United States
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Preliminary development and testing has been conducted on two energy-absorbing safety devices for racing circuits, termed the Fitch Inertial Barrier and the Compression Barrier. The first is an array of sacrificial modules, filled with sand and/or water progressively weighted. It is a racing version of inertial barriers used for 30 years on highways in 50 States. In its test, the Inertial Barrier recorded a 4.7 average G deceleration in 36 feet, compared with a 70 G deceleration for a car hitting a concrete barrier head-on with 2.3′ of crush. In the test of the compression barrier, 15 avg. longitudinal Gs were recorded in less than 3 feet of energy-absorption. It reduced the speed of the car by nearly half and reduced rebound by 5 degrees. The barrier self-restored after impact.
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CitationFitch, J., Goodwin, C., Alberson, D., and Bullard, D., "Impact Attenuation Devices for Racing
- Report of Texas Transportation Institute, Texas A&M University System Crash Testing and Evaluation of the Roadway Safety Service, Inc. Fitch Inertial System Crash Cushion March 1995
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- Engineering test report Fitch Inertial Barrier System Arvin Advanced Technology Center Buffalo, New York December 16 1992
- Fitch Sand Barrel System Roadway Safety Service Inc. July 17 1996
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