Citation

Levy P, Voas RB, Johnson P, Klein TM. J. Saf. Res. 1978; 10(4): 162-176.

Copyright

(Copyright © 1978, U.S. National Safety Council, Publisher Elsevier Publishing)

DOI

unavailable

PMID

unavailable

Abstract

In the valuation of 35 Alcohol Safety Action Projects (ASAP) was conducted by the Department of Transportation, National Highway Safety Administration, between 1971 in 1976. Nighttime (8 p.m. to 8 a.m.) fatal crashes were used as the criterion measure in the loo of alcohol-related crashes; roadside surveys of the blood-alcohol content (BAC) of drivers were used as an intermediate measure of the project impact. A timeseries analysis was used to evaluate changes in the nighttime fatal crash levels of the ASAPs and of 11 comparison sites. Other 35 ASAPs examined, 12 sites had significant crash reductions during their demonstration period. The reductions associated with the ASAP program varied from 15% to 66% of the baseline nighttime fatal crash level. In none of the comparison sites associated with these 12 ASAPs was there a significant reduction in nighttime fatal crashes. Eight of the 12 ASAP sites with significant reductions in nighttime fatal crashes also conducted roadside surveys of drivers, BAC levels. As a group, these eight showed a significant reduction in the proportion of drivers with illegal BAC levels. Eleven of the 23 ASAP sites that did not have a significant reduction in nighttime fatal crashes also conducted surveys. As a group these 11 did not show a significant reduction in the proportion of drivers with illegal BAC's.