2013–2014 National Roadside Study of Alcohol and Drug Use by Drivers: Alcohol Results

Ramirez, Anthony; Berning, Amy; Kelley-Baker, Tara; Lacey, John H.; Yao, Julie; Tippetts, A. Scott; Scherer, Michael; Carr, Katherine; Pell, Karen; Compton, Richard P.; Pacific Institute for Research and Evaluation

doi:10.21949/1525903

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2013–2014 National Roadside Study of Alcohol and Drug Use by Drivers: Alcohol Results

2016-12-01
Datasets Available
By Ramirez, Anthony ; Berning, Amy ; Kelley-Baker, Tara ; ...
Series: Roadside and Crash Risk Studies

[PDF-1.60 MB]

English

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Details:

Creators:

Ramirez, Anthony ; Berning, Amy ; Kelley-Baker, Tara ; Lacey, John H. ; Yao, Julie ; ... More +

Ramirez, Anthony ; Berning, Amy ; Kelley-Baker, Tara ; Lacey, John H. ; Yao, Julie ; Tippetts, A. Scott ; Scherer, Michael ; Carr, Katherine ; Pell, Karen ; Compton, Richard P. Less -
Corporate Creators:

Pacific Institute for Research and Evaluation
Contributors:

Wochinger, Kathryn ; Coleman, Heidi

Wochinger, Kathryn ; Coleman, Heidi Less -
Corporate Contributors:

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

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 Less -
Subject/TRT Terms:

[+]

Alcohol-involved Driving Alcohol And Driving Alcohol Breath Tests Drug-involved Driving Drugged Driving Drugs And Driving Drunk Drivers Drunk Driving Field Studies Impaired Driving Night NRS Research Hub Roadside Survey Trend (Statistics) Weekends
Publication/ Report Number:

DOT HS 812 362
Series:

Roadside and Crash Risk Studies
DOI:

https://doi.org/10.21949/1525903
Resource Type:

Statistical Report
Geographical Coverage:

United States
Edition:

Final report
Corporate Publisher:

United States. Department of Transportation. National Highway Traffic Safety Administration
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.
Format:

PDF
Funding:

DTNH22-11-C-00216L
Collection(s):

NHTSA - Behavioral Safety Research
Main Document Checksum:

[+]

urn:sha256:ea2e03a3e88d81682c2291a86486b2e6ca5a09166f74af96501b521f4d8cd33c
Download URL:

https://rosap.ntl.bts.gov/view/dot/2084/dot_2084_DS1.pdf
File Type:

No Additional Files

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2013–2014 National Roadside Study of Alcohol and Drug Use by Drivers: Alcohol Results

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