LOWER BAC LIMITS FOR YOUTH: EVALUATION OF THE MARYLAND .02 LAW. FINAL REPORT
The purpose of this study was to determine the effects of special drinking driving sanctions aimed at youthful drivers under the age of 21 years. This purpose was accomplished by focusing on a Maryland law which restricts driving by those under 21 to a blood alcohol concentration (BAC) less than 0.02% rather than the 0.10% prevailing limit for older drivers. The specific objectives were to: 1) evaluate the impact of adoption of the sanction; 2) mount a public information and education (PI&E) campaign in selected counties to attempt to potentiate the effects of the sanction; and 3) evaluate any added benefit of the PI&E. Crash data were used statewide and in six experimental counties. The unit of analysis was accident-involved drivers under 21 years of age judged "had been drinking" (HBD) on the police accident report. Box-Jenkins time series analysis of this measure indicated a significant step reduction in crash-involved drivers under 21 judged HBD coincident with adoption of the sanction and an additional significant step reduction in the experimental counties after application of the PI&E. Only the reduction coincident with the sanction adoption was detected in two comparison counties. Survey data in the experimental and comparison counties confirmed that knowledge of the sanction among youth increased significantly after exposure to the PI&E at the experimental sites but not at the comparisons. It was concluded that this special sanction for youth was effective and this effectiveness was significantly potentiated by a public service information program which emphasized the possible penalties for violation of the regulation.
- Sponsored by the National Highway Traffic Safety Administration, Washington, D.C.
Dunlap and Associates, Incorporated17 Washington Street
Norwalk, CT United States 06854
- Blomberg, R D
- Publication Date: 1992-3
- Features: Appendices; Figures; References; Tables;
- Pagination: 137 p.
- TRT Terms: Adolescents; Benefits; Blood alcohol levels; Crash reports; Drivers; Drunk driving; Education; Impact studies; Measures of effectiveness; Public information programs; Sanctions; State laws; Teenage drivers; Time series analysis
- Uncontrolled Terms: Effectiveness
- Geographic Terms: Maryland
- Old TRIS Terms: Education programs
- Subject Areas: Highways; Law; Safety and Human Factors; I83: Accidents and the Human Factor;
- Accession Number: 00719449
- Record Type: Publication
- Source Agency: National Highway Traffic Safety Administration
- Report/Paper Numbers: HS-807 860
- Contract Numbers: DTNH22-88-C-07012
- Files: HSL, TRIS, USDOT
- Created Date: Mar 20 1996 12:00AM