United States Department of Transportation
i
Analysis of the Crash Experience of Vehicles Equipped with All Wheel Antilock Braking Systems (ABS)-A Second Update Including Vehicles with Optional ABS
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2000-09-01
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By Hertz, Ellen
[PDF-62.42 KB]
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Abstract:This analysis updates the 1998 Antilock Braking System (ABS) analysis (Hertz et al, 1998) by including vehicles whose owners had selected it as an option. The inclusion of the vehicles with optional ABS does not seem to make very much difference in the estimation of the effect of all wheel ABS in crashes of all severities. ABS still seems to have a beneficial effect in preventing each crash type except for side impacts, where it appears to be associated with a higher response rate especially for passenger cars. It appears to be beneficial in preventing pedestrian crashes, rollovers, run-off-road crashes and frontal crashes with another moving vehicle. The previous study indicated several disbenefits in fatal crashes. The only statistically significant one remaining is rollovers of LTVs (light trucks and vans). As with all protective devices, the National Highway Traffic Safety Administration plans to update these estimates periodically as more data become available.
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