Marijuana-Related Traffic Accidents

The problem of the growing scope of Marijuana-related traffic accents in the United States.

Driving a car

Most of the focus regarding impaired driving goes to drunk driving. But what about drugged driving? More specifically, what about marijuana-impaired driving? This is a growing problem across America.

Unfortunately, as marijuana legalization increases, this could become the next big killer on our roads. What is the data behind this growing problem? And what can be done to prevent people from dying on the streets because of marijuana-impaired driving?

Marijuana Drugged Driving Statistics

When people get high and then get behind the wheel of a car, they take on a great deal of risk, not only for themselves but also for everyone else on the road. As marijuana legalization has increased, the rate of marijuana-impaired traffic accidents has also increased. And to make matters even worse, the rate of marijuana-related traffic deaths has gone up as well. In 2018, about 12 million Americans, or 4.7 percent of the population that’s over the age of 16, drove under the influence of marijuana.1 About 2.3 million (or roughly 0.9 percent of that same age group) drove a vehicle under the influence of illicit drugs other than marijuana in 2018. The fraction of fatal accidents in which at least one driver tested positive for THC has shot up in states that legalized marijuana.2 For example, from 2013 to 2016, the fraction of fatal accidents in which at least one driver tested positive for THC increased nationwide by an average of 10 percent. But for Colorado and Washington, two states that legalized marijuana in 2014, the result was much different. During the same period, Colorado’s marijuana-related traffic death rate shot up 92 percent, and Washington’s increased by 28 percent. Since 2016, marijuana-related traffic deaths have leveled out in both Colorado and Washington. Such deaths are still higher than the national average, but the statistics are no longer spiking. However, the point of concern here is that both states legalized marijuana, and both states experienced a shocking increase in marijuana-influenced traffic deaths immediately afterward. Another report suggests that, in 2016, 54 percent of fatally injured drivers tested positive for drugs, with at least half of them having marijuana in their systems at the time of the accident.3 In 2016, about 5,300 drug-influenced drivers died in car accidents. And that is not taking into account other innocent victims of those car crashes; that’s just the intoxicated drivers themselves. And of those 5,300, at least 38 percent had marijuana in their bodies at the time of the accident.

Testing a driver for drugs

Another concerning factor is that, while it is well known how dangerous it is to drive under the influence of alcohol, many people who use marijuana believe that they can smoke pot and drive safely. A Colorado survey found that at least 69 percent of marijuana users in that state drove under the influence of marijuana at least once in the year leading up to the study, and 27 percent said they drove high almost every day. Many of the survey respondents said that they didn’t think marijuana had a negative effect on their ability to drive safely. But in the same year leading up to the survey, 51 people died in Colorado from marijuana-impaired driving. Not only is marijuana-impaired driving a growing problem, but it is a lethal problem. And to make matters worse, law enforcement officers do not yet possess the proper testing technology to test for marijuana-impaired driving! So the current testing methodology is not nearly as efficient as it needs to be. And last but not least, many marijuana users erroneously believe that they can use marijuana and drive safely. This is a multifaceted problem. It needs to be solved as soon as possible to preserve the lives of those on the roads.

Curbing Legalization to Keep the Roads Safe

To preserve life and keep the roads safe, it would be a good idea to curb the legalization of marijuana. Of course, there are many other reasons why states might not want to legalize this substance. But it seems that just the life and death factor of marijuana-influenced driving alone would be enough to discourage legalization. Case in point, it seems as though the states that legalized experienced the highest surges in marijuana-related traffic fatalities. And while the casualties appeared to level out several years after legalization in each state, the first few years following legalization were particularly lethal. If even just one person dies on the roads because of marijuana-impaired driving, is it really a good idea to continue legalizing the substance?

Seeking Treatment for Addiction

Marijuana use can lead to marijuana dependence, a condition in which an individual compulsively uses marijuana and cannot seem to stop. Furthermore, marijuana use often ends up going hand in hand with other types of substance abuse too, such as alcohol misuse or an addiction to narcotics. Without a doubt, marijuana-influenced driving is not the only risk factor attendant with marijuana use. If you have a spouse, son, daughter, grandchild, parent, grandparent, sibling, partner, loved one, friend, or coworker who uses drugs, please do your best to get them into a drug and alcohol addiction treatment center as soon as possible. Even a drug like marijuana, which is said not to be as harmful as other drugs, can be lethal. There is no such thing as “safe” drug use, and there is never a good reason to experiment with drugs. Narconon offers a pathway to freedom from addiction, a route to a drug-free life. At Narconon, people don’t have to be “addicts for life.” Anyone can live a drug-free life. No one has to be shackled to the label of “substance abuser” forever. Let Narconon help your loved one get to the bottom of the issues driving them to use drugs. Let Narconon help your loved one find and implement the tools they need to live life without resorting to mind-altering substances.


  1. Alejandro Azofeifa, DDS, et al. Center for Disease Control and Prevention, “Driving Under the Influence of Marijuana and Illicit Drugs Among Persons Aged ≥16 Years—United States, 2018”. Morbidity and Mortality Weekly Report (MMWR) ↩︎

  2. Benjamin Hansen University of Oregon, NBER, IZA, et al. (2018) “Early Evidence on Recreational Marijuana Legalization and Traffic Fatalities”. University of Oregon Report (pdf) ↩︎

  3. Jenni Bergal Stateline Article, Pew Charitable Trusts, (2018) “Drugged Driving Deaths Spike With Spread of Legal Marijuana, Opioid Abuse”. See Article ↩︎