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Implementation Guides

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Volume 01: A Guide for Addressing Aggressive-Driving Collisions

Aggressive Drivers: Critical Highway Safety Problem

More than 60 percent of drivers see unsafe driving by others as a major personal threat to themselves and their families.

Traits exhibited by aggressive drivers include tailgating, flashing headlights out of annoyance with other drivers, making rude gestures or being verbally abusive, and deliberately obstructing or preventing another driver from moving his or her vehicle.


Aggressive drivers also tend to be high-risk drivers—more likely to drink and drive, speed, or drive without wearing a safety belt. Their vehicles provide anonymity, and they have little concern for other drivers.  Young male drivers have the highest probability of being cited for aggression-related offenses.



  • Deter aggressive driving in specific populations, including those with a history of such behavior, and at specific locations.

  • Minimize the external “triggers” of aggressive driving.

Download this guide: http://gulliver.trb.org/publications/nchrp/nchrp_rpt_500v1.pdf

NCHRP 500-1
Aggressive Driving

Aggressive driving is defined as operating a motor vehicle in a selfish, pushy or impatient manner, often unsafely, that directly affects other drivers. Resolving the problem lies not only with enforcement but also with education and engineering. This guide addresses the causes, not just symptoms, of aggressive driving.

Download the guide in PDF

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Related publications


Aggressive Driving One-Pager


Self Assessment Tool


Integrated Safety Management Process