SWOV Catalogus


How drunk are U.S. drivers ? : measuring the extent, risks and costs of drunk driving.
C 12693 (In: C 12671 S) /83 / IRRD E201331
Miller, T. Spicer, R. Levy, D.T. & Lestina, D.C.
In: Proceedings of the 42nd Annual Conference of the Association for the Advancement of Automotive Medicine, Charlottesville, VA, USA, October 5-7, 1998, p. 353-367, 32 ref.

Samenvatting This study develops and applies an algorithm with broad applicability for estimating vehicle miles traveled by Blood Alcohol Level (BAL) from police accident report data. In the United States, an estimated one in 120 miles was driven drunk in 1992-1993. For 1 in 7 miles driven after 1 a.m. on weekend evenings, a drunk sat behind the wheel. The estimated cost per driving while intoxicated (DWI) vehicle mile was 5.80 dollars compared to 0.11 dollar per sober mile. Males, those aged 21 to 29 years, and those driving between 10 p.m. and 4 a.m. had the greatest percentage of alcohol-impaired driving. These estimates are computed, in part, from early-1960s data on crash odds by driver BAL, and assume crash odds by BAL relative to sober do not vary with driver age and sex. The method reproduces alcohol-positive miles from roadside surveys at night well, but seems to overestimate high-BAL miles. Direct field validation is highly desirable. (A)
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