Technical Report Documentation Page

1. Report No.

 DOT HS 810 704

2. Government Accession No.

3. Recipient's Catalog No.

4. Title and Subtitle
Pilot Test of New Roadside Survey Methodology for Impaired Driving

5. Report Date
January 2007

6.  Performing Organization Code

7. Author(s)

John H. Lacey, Tara Kelley-Baker, Debra Furr-Holden, Katharine Brainard, and Christine Moore

8. Performing Organization
Report No.

9. Performing Organization Name and Address
Pacific Institute for Research and Evaluation
11710 Beltsville Drive, Calverton, MD 20705
Phone: 301-755-2700 Fax: 301-755-2799

10. Work Unit No. (TRAIS)

11. Contract or Grant No.

12. Sponsoring Agency Name and Address

DOT/National Highway Traffic Safety Administration
Office of Research and Technology
400 Seventh Street SW
Washington, DC 20590

13. Type of Report and
Period Covered
Final Report

14. Sponsoring Agency Code

15. Supplementary Notes

Amy Berning served as the project Contracting Officer’s Technical Representative.
The National Institute of Alcohol Abuse and Alcoholism (NIAAA) provided funding and support for the alcohol use disorders portion of this project.

16. Abstract

This study developed and tested procedures to enhance roadside survey procedures to include collecting and analyzing oral fluid and blood samples from the nighttime weekend driving population. Roadside surveys involve collecting information from a random sample of drivers. In the past, they have been used to measure the extent of alcohol use in the nighttime driving population in order to establish regular measures of that activity, which is a measure of progress in reducing impaired driving. This study developed and tested techniques to extend the scope of that measurement to drugs other than alcohol. Breath and oral fluid samples were successfully collected from over 600 drivers at 6 locations across the United States. Blood samples were obtained from approximately half of those subjects. Laboratory analyses for alcohol and other drugs were conducted on the oral fluid and blood samples. Procedures and results are described in this report. The findings indicate that this form of expanded roadside survey is practicable in the United States. The intent of this Pilot Test was to develop and test procedures that would be used in the next full-scale national roadside survey. It was not designed to yield a nationally-representative sample of the nighttime weekend driving population; thus the results are not representative of the United States as a whole.

17. Key Word
Alcohol and driving, drugs and driving, roadside survey, impaired driving

18. Distribution Statement
This report is available through the National Technical Information Service, Springfield, VA. It is also on the NHTSA website at

19. Security Classif. (of this report)

20. Security Classif. (of this page)

21. No.
of Pages

22. Price

Form DOT F 1700.7 (8-72)                        Reproduction of completed page authorized