United States Department of Transportation
i
An Analysis of the Crash Experience of Light Trucks Equipped with Antilock Braking Systems
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1995-05-01
[PDF-110.20 KB]
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TRIS Online Accession Number:00712945
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NTL Classification:NTL-SAFETY AND SECURITY-Vehicle Design
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Abstract:Using data from the Fatal Accident Reporting System (FARS) and Florida, Maryland, Michigan, and Missouri, four antilock braking system (ABS) relevant crash types were identified as follows: (1) rollovers, (2) side impacts with parked vehicles or fixed objects, (3) frontal impacts with parked vehicles or fixed objects, and (4) frontal impacts with another motor vehicle in transport. The light truck experiences in these four crash types were compared to a control group of crashes that are not expected to be affected by the presence of the ABS. Detailed findings are provided for each type of ABS, for the four individual crash types, and on favorable vs. unfavorable road surfaces. The following findings were noted: Significant reductions in nonfatal rollover crashes and side impacts with fixed objects/parked vehicles were associated with the presence of rear-wheel antilock (RWAL) braking systems; A significant reduction in nonfatal rollover crashes was associated with the presence of all-wheel antilock (AWAL) braking systems; The reductions in nonfatal crashes did not extend to fatal crashes, in which no significant reductions associated with the RWAL or AWAL braking systems were found; Significant increases in "did not stop in time" nonfatal and fatal crashes were found, associated with the presence of RWAL braking systems; and The relatively small sample size available for AWAL braking systems made it more difficult to detect significant differences in crashes.
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