September 22, 2019
  • 2:34 pm Committee Leadership Comes into Focus for 116th Congress
  • 2:22 pm Interstate System Report Calls for More Funding, Tolling, VMT Fees, and Cybersecurity
  • 2:15 pm In Memoriam: President George H. W. Bush, ISTEA, and Transportation
  • 1:56 pm Growth Projected for Transportation Projects, but Costs a Challenge
  • 1:35 pm FAA Reshuffles Executives, Plans Drone Identification Rulemaking in Spring 2019
  • 1:28 pm Predictive Technology Helps Reduce Crashes on I-15 Corridor in Las Vegas
  • 1:14 pm Video Report: MoDOT Produces Multi-Lingual Safety Message
  • 1:11 pm PennDOT Nears Completion of Rapid Bridge Replacement Project
  • 1:08 pm Infrastructure Grants Awarded to “Smaller” South Dakota Communities
  • 9:36 am Rescission Repeal Left Out of House’s Continuing Resolution
  • 9:33 am FHWA Research Showcase Highlights Transportation Innovations
  • 9:31 am Senate Appropriations Committee Passes Transportation Funding Package
  • 9:28 am New Federal Vehicle Emission Rules Would Eliminate California Waiver
  • 9:25 am AASHTO Endorses NEPA Paperwork Reduction Goals Outlined by USDOT

According to a new AAA Foundation for Traffic Safety survey released this month, most drivers (95.1 percent) perceive driving after drinking as very or extremely dangerous. However, almost 11 percent admitted to having done so in the past 30 days.

Meanwhile, the survey found that 70 percent of respondents consider driving within an hour after using marijuana to be very or extremely dangerous. But more than 7 percent of respondents personally approve of driving shortly after using marijuana.

The survey found that Millennial (ages 25-39) respondents were the most likely generational cohort to report driving within one hour after using marijuana in the past month (13.7 percent), followed by Generation Z at 10 percent.

Dr. David Yang, the AAA Foundation’s executive director, noted in a statement that the impairing effects of marijuana are usually experienced within the first one to four hours after using the drug. Additionally, marijuana users who drive high are up to twice as likely to be involved in a crash, he explained.

“Marijuana can significantly alter reaction times and impair a driver’s judgment. Yet, many drivers don’t consider marijuana-impaired driving as risky as other behaviors like driving drunk or talking on the phone while driving,” Yang noted, pointing out that the survey found 7 percent of the licensed drivers it polled “approved” of driving after recently using marijuana – more than other dangerous behaviors such as alcohol-impaired driving at 1.6 percent, drowsy driving at 1.7 percent, and prescription drug-impaired driving at 3 percent.

“It is important for everyone to understand that driving after recently using marijuana can put themselves and others at risk,” he added.

AAA also noted that law enforcement officers categorized as Drug Recognition Experts report that marijuana is now the most frequently identified drug category and that since 2015 the number of drivers arrested by DREs for using marijuana has increased 20 percent.

AAA’s survey follows on the heels of two other studies released last year that showed that motor vehicle crashes were up by as much as 6 percent in Colorado, Nevada, Oregon, and Washington, which have all legalized marijuana for recreational use, compared to neighboring states that have not.

The new survey results are part of the AAA Foundation’s annual Traffic Safety Culture Index, which identifies attitudes and behaviors related to traffic safety. The survey data are from a sample of 2,582 licensed drivers ages 16 and older who reported driving in the past 30 days.

editor@aashto.org

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