United States. Department of Transportation. National Highway Traffic Safety Administration (2016). Drivers’ Use of Marijuana in Washington State [Traffic Tech] (Report No. DOT HS 812 307). United States. National Highway Traffic Safety Administration. https://doi.org/10.21949/1525833
United States. Department of Transportation. National Highway Traffic Safety Administration. Drivers’ Use of Marijuana in Washington State [Traffic Tech]. Report no. DOT HS 812 307. United States. National Highway Traffic Safety Administration, 2016. https://doi.org/10.21949/1525833.
United States. Department of Transportation. National Highway Traffic Safety Administration Drivers’ Use of Marijuana in Washington State [Traffic Tech]. United States. National Highway Traffic Safety Administration, 2016, Report no. DOT HS 812 307, ROSA P. https://doi.org/10.21949/1525833.
In July 2014, Washington State allowed legal sales of recreational marijuana. Working with the Washington Traffic Safety Commission, NHTSA assisted the State in conducting a roadside study to examine the prevalence of marijuana use before and after sales began. The study also examined drivers’ use of alcohol and other drugs. National roadside studies have been conducted approximately every decade since the 1970s. This study used a similar research design as the national studies but included several enhancements. It included more than 70 over-the-counter, prescription (antidepressants, sleep medications, etc.), and illegal drugs (cocaine, opioids, etc.) that may impair driving-related skills.
This dataset supports the conclusions of the report "Marijuana, Other Drugs, and Alcohol Use by Drivers in Washington State", and its various outputs.
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About the survey: Conducted for the first time in 1973; repeated in 1986, 1996, 2007, and 2013-14; Collects data from 300 roadside sites across the co
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United States. Department of Transportation. National Highway Traffic Safety Administration
In Washington State legal sales of marijuana began July 8, 2014. A voluntary, anonymous roadside study was conducted to assess the prevalence of drive
...
In Washington State legal sales of marijuana began July 8, 2014. A voluntary, anonymous roadside study was conducted to assess the prevalence of drive
...
United States. Department of Transportation. National Highway Traffic Safety Administration (2016). Drivers’ Use of Marijuana in Washington State [Traffic Tech] (Report No. DOT HS 812 307). United States. National Highway Traffic Safety Administration. https://doi.org/10.21949/1525833
United States. Department of Transportation. National Highway Traffic Safety Administration. Drivers’ Use of Marijuana in Washington State [Traffic Tech]. Report no. DOT HS 812 307. United States. National Highway Traffic Safety Administration, 2016. https://doi.org/10.21949/1525833.
United States. Department of Transportation. National Highway Traffic Safety Administration Drivers’ Use of Marijuana in Washington State [Traffic Tech]. United States. National Highway Traffic Safety Administration, 2016, Report no. DOT HS 812 307, ROSA P. https://doi.org/10.21949/1525833.
ROSA P serves as an archival repository of USDOT-published products including scientific
findings, journal articles, guidelines, recommendations, or other information authored or co-authored by
USDOT or funded partners. As a repository, ROSA P retains documents in their original published format to
ensure public access to scientific information.
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