Behavioral Research

Drug and Alcohol Crash Risk Study

Drug and Alcohol Crash Risk Study Drug and Alcohol Crash Risk Study
Drug and Alcohol Crash Risk Study

Drug and Alcohol Crash Risk Study

NHTSA's "Crash Risk" study is the first large-scale study in the United States to include drugs other than alcohol. This study estimated the odds of being involved in a crash if a driver was alcohol- and/or drug-positive. A positive result for a drug does not necessarily mean the driver was impaired at the time of testing, only that the drug was present in the body. Data from this study contributes to a better understanding of the nature and scope of the drugged driving issue.