| Title | 2013–2014 National Roadside Study of Alcohol and Drug Use by Drivers: Alcohol Results |
|---|---|
| Record ID | 62085 |
| Personal Name Creator |
Ramirez, Anthony; Berning, Amy; Kelley-Baker, Tara; Lacey, John H.; Yao, Julie; Tippetts, A. Scott; Scherer, Michael; Carr, Katherine; Pell, Karen; Compton, Richard P. |
| Personal Name Contributor |
Wochinger, Kathryn; Coleman, Heidi |
| Corporate Creator | Pacific Institute for Research and Evaluation |
| Corporate Contributor |
United States. Department of Transportation. National Highway Traffic Safety Administration. Office of Behavioral Safety Research; Insurance Institute for Highway Safety; National Institute on Drug Abuse |
| Publisher | United States. Department of Transportation. National Highway Traffic Safety Administration |
| Publication Date | 20161201 |
| Language | English |
| Abstract | This report describes the alcohol results from the 2013–2014 National Roadside Survey (NRS), a national field study to estimate the prevalence of alcohol-, drug-, and alcohol-plus-drug-involved driving, primarily among nighttime weekend drivers, but also daytime Friday drivers. This study involved a random sample of drivers at 300 locations across the continental United States. The sites were selected through a stratified random sampling procedure. Data was collected during one 2-hour Friday daytime session (either 9:30 to 11:30 a.m. or 1:30 to 3:30 p.m.) at 60 locations and during four 2-hour nighttime periods (10 p.m. to midnight and 1 to 3 a.m. on both Friday and Saturday nights) at 240 locations. Data included observational and biological samples. Biological samples included breath-alcohol measurements from 9,455 respondents, oral fluid samples from 7,881 respondents, and blood samples from 4,686 respondents. This report focuses on the alcohol breath-test results, presents the 2013-2014 prevalence estimates for alcohol-involved driving, and compares them with the four previous NRS studies. The data indicates a continuing trend of decreasing alcohol-involved driving on U.S. roads during weekend nights over the five NRS studies, including a large change in the percentage of drivers who were alcohol positive, from 36.1% in 1973 to 8.3% in 2013-2014, and an 80% reduction in the percentage of drivers with breath alcohol concentrations (BrACs) of .08 grams per deciliter (g/dL) and higher, from 7.5% in 1973 to 1.5% in 2013-2014. |
| Rosap ID | dot:2084 |
| Rosap URL | https://rosap.ntl.bts.gov/view/dot/2084 |
| ResearchHub ID | 10794 |
| TRT Terms | Alcohol breath tests; Drunk drivers; Drunk driving; Field studies; Night; Statistical trends; Weekends |
| General Subjects | Alcohol and driving; drugs and driving; roadside survey; impaired driving; drugged driving; alcohol-involved driving; drug-involved driving; NRS; Research Hub |
| Geographical Coverage |
United States |
| TRIS Online Accession No |
1624264 |
| Contract Number | DTNH22-11-C-00216L |
| Report Number | DOT HS 812 362 |
| Availability | NHTSA - Behavioral Safety Research |
| Resource type | Statistical Report |
| URL | https://ntlrepository.blob.core.windows.net/lib/62000/62000/62085/812362_2013-2014_nrs_alcoholresults.pdf |
| Format | |
| Database | NTL Digital Repository |