One of the biggest problems with driving while angry is that our attention narrows. Instead of scanning the road as we normally would, our focus tightens, reducing our ability to notice hazards. At the same time, anger can create a false sense of control. We may feel more capable or more entitled to certain decisions, even though our judgement is impaired. Research shows that being angry increases the odds of being involved in a crash ten‑fold—highlighting just how much our emotional state affects our driving.

Anger also activates the body’s fight response, priming us for confrontation. On the road, this often translates into aggressive behaviours such as speeding, tailgating, abrupt lane changes, or refusing to yield. These behaviours don’t just raise the likelihood of a crash—they also increase the severity of any crash that occurs.

International research reinforces this. In Canada, around 15% of serious injury crashes are attributed to aggressive driving. Findings from the United States show similar trends: 14% of fatal crashes and nearly one‑third of minor injury crashes are linked to aggressive driving behaviours. These numbers remind us that aggression on the road doesn’t just endanger the driver—it puts everyone around them at risk.

More recent research by Dingus et al. (2016) paints an even clearer picture. They found that general aggressive driving was associated with 35 times higher odds of a crash. Specific behaviours also carried major risks: not stopping at traffic lights and tailgating were each linked to around 14–15 times higher odds, while speeding increased risk 14 times. Even holding or dialling a mobile phone while driving raised crash odds 12 times.

Perhaps most striking is how these risks compare to driving under the influence. Dingus’s study showed that using drugs or alcohol behind the wheel increased crash odds by 36 times. This means that everyday aggressive driving—something many people dismiss as normal frustration—is almost as risky as driving impaired.

Aggressive driving is preventable. By recognising our emotional triggers and taking steps to calm down before driving, we not only protect ourselves—we help create safer roads for everyone.