A new survey shows nearly half of Michigan drivers who smoke marijuana don’t believe it affects their driving.

The new study from Triple-A states that 53% of people who smoke pow do so an hour or less before they get behind the wheel. WSJM reports that 47% of the state’s drivers don’t think it has any impact on their ability drive.

The survey found 44% of respondents said they consume cannabis multiple times per day, and 84% revealed that they drive the same day they partake. 46% believe they drive the same, a little better, or much better on marijuana.