Clear Rule

The rules around marijuana use can be confusing. But when it comes to marijuana use and driving, all you need to remember is one clear rule:

Driving impaired is illegal everywhere.

Driving impaired is illegal everywhere.

When you feel different, you drive different.

Everything else can get kind of hazy. So, if you want to think through some of the things experts and leading researchers are learning about marijuana’s effect on your driving, you can do that here.

Get Started Overview

Index

Issue

Severity of Impairment

Subject

An analysis of 60 studies concluded that marijuana impairs the skills connected with the safe driving of a vehicle.

Why it matters?

Attentiveness, vigilance, perception of time and speed, and use of acquired knowledge are all affected by marijuana.

In fact, a meta-analysis of 60 studies concluded that marijuana causes impairment in every performance area that can reasonably be connected with safe driving of a vehicle, such as tracking, motor coordination, visual functions, and particularly complex tasks that require multi-tasking — although the research studies on how marijuana affects reaction time have been inconsistent.

Related Issues: Increased Crash Risk THC and Impairment 3

Clarity Level

Source

The Effect of Cannabis Compared with Alcohol on Driving

Abstract

This study reviews the scientific evidence on the effects on driving while intoxicated with marijuana and contrast this with the effects of alcohol intoxication.

Read Full Study

Source

The Effect of Cannabis Compared with Alcohol on Driving

Abstract

This study reviews the scientific evidence on the effects on driving while intoxicated with marijuana and contrast this with the effects of alcohol intoxication.

Read Full Study