A busy highway.

Standing Up for Road Safety

As a long-standing advocate for road safety, CAA Manitoba is continuing to monitor new developments and discussions around cannabis to fully understand its impact on Manitoba's roads. With the landscape evolving, we will continue to push for road safety education and awareness to be at the forefront.

A driver smoking inside the car while driving.

Effects of Cannabis on Driving

The most common misconceptions are that cannabis doesn’t affect your driving or that it can make you a better driver. But the reality is that using cannabis increases the risk of getting into a motor vehicle collision.

Cannabis is second only to alcohol as the drug most frequently found among drivers involved in crashes, and drivers charged with impaired driving. It is also the substance most frequently mixed with alcohol in vehicle crashes.

Driving While Under the Influence of Cannabis Affects Your:




Reaction time

Ability to pay attention


Decision-making abilities


Ability to judge distances

Prevent Impaired Driving: Plan a Safe Way Home

Given what we know about the effects of cannabis on driving ability, make sure you’re prepared with alternate ways to get home if you plan to, or if you have consumed, cannabis or alcohol.

You Have Options


Have a designated driver

Call a friend or loved one


Call a cab or ride-share

Take public transit


Stay over and sleep it off