Tag Archives: impaired driving

Studies: Car Crashes Rise as Recreational Cannabis Becomes Legal in States

Connecticut this week became the latest state to legalize recreational use of marijuana, and more are expected to follow.

The increased marijuana use that accompanies legalization has raised concerns about road safety.

Researchers at Insurance Institute for Highway Safety (IIHS) and the Highway Loss Data Institute (HLDI) since 2014 have been examining how legalization has affected crash rates and insurance claims, and evidence is emerging that crash rates go up when states legalize recreational use and retail sales of marijuana.

The most recent of these studies, released on June 17 by the IIHS, shows that injury and fatal crash rates in California, Colorado, Nevada, Oregon, and Washington jumped in the months following relaxation of marijuana laws in each state. The five states experienced a 6 percent increase in injury crash rates and a 4 percent increase in fatal crash rates, compared with other Western states where recreational marijuana use was illegal during the study period.

Only the increase in injury crash rates was statistically significant.

“Our latest research makes it clear that legalizing marijuana for recreational use does increase overall crash rates,” says IIHS-HLDI President David Harkey. “That’s obviously something policymakers and safety professionals will need to address as more states move to liberalize their laws — even if the way marijuana affects crash risk for individual drivers remains uncertain.”

Insurance records show a similar increase in claims under collision coverage, which pays for damage to an at-fault, insured driver’s own vehicle, according to HLDI’s latest analysis. The legalization of retail sales in Colorado, Nevada, Oregon, and Washington was associated with a 4 percent increase in collision claim frequency compared with the other Western states from 2012 to 2019. That’s down slightly from the 6 percent increase HLDI identified in a previous study, which covered 2012  to 2018.

While the evidence that crash rates have increased in states that legalized marijuana is mounting, it appears that further study is needed to determine whether marijuana use alone is responsible. Preliminary data suggests people who use alcohol and marijuana together are accountable for most of the crashes.

Another factor may be that marijuana users in counties that do not allow retail sales are driving to counties that do. The increased travel could lead to more crashes, even if their crash risk per mile traveled is no higher than that of other drivers.

The Dangers of Driving During the Holiday Season

By Max Dorfman, Research Writer, Triple-I

As the holiday season continues to ramp up, it’s important to remember that this time of year is particularly risky for driving. That’s why December has been officially designated Drugged and Drunk Driving Prevention month.

During the Christmas holidays, alcohol-impaired fatalities in 2018 comprised 37 percent of total traffic fatalities, compared to 29 percent total for all times of the year. In total, there are more than 750 fatalities in December due to drunk driving, according to the U.S. Department of Transportation.

According to National Safety Council, the average number of traffic deaths during New Year’s Day over the last five holidays is almost 68 percent greater than the average number of traffic deaths during nonholiday periods, with 175 deaths compared to the usual 104 deaths.

Drunk driving is not the only reason people get into dangerous accidents during the holidays. Extreme weather can also contribute to risks during the blustery winter season, including snow, black ice, high winds and hail. Fatigued and stressed driving is also an issue during the holidays, with individuals potentially traveling further than they usually do. And in 2020, anxiety related to the coronavirus pandemic may make these stress-related issues worse.

With this in mind, it’s important to remember some tips to remain safe while driving during the holiday season, including:

  • Drive defensively by taking precautions while driving, paying close attention to the cars around you. Even if you’re not drinking or driving recklessly, others may be.
  • Do not drive if you are drinking, making sure you have safe, sober transportation, regardless of how far you’re traveling.
  • Plan for inclement weather by checking weather forecasts and changing your plans if necessary.

Remember: the holidays can be a busy and stressful time for people, but that’s no reason to let your guard down while driving.

For more safe driving tips check out this Triple-I video.