According to "http://www.cyberdriveillinois.com/departments/drivers/traffic_safety/distracted.html"
Aggressive driving is the operation of a motor vehicle in a manner that endangers or is likely to endanger persons or property. Persons doing any of the following may be committing acts of aggressive driving and pose risk of a crash:
- Running red lights and stop signs
- Passing on the shoulder of the road
- Cutting off another vehicle
- Slamming on brakes in front of a tailgater
- Improper hand or facial gestures at other drivers
- Repeatedly honking the horn
- Repeatedly flashing the headlights
Avoid aggressive drivers and potentially dangerous situations. If you encounter an angry or aggressive motorist:
- Do not retaliate or in any way engage the other driver. Get out of the way.
- Do not make eye contact.
- Keep your doors locked and your windows up.
- Keep enough space between you and the vehicle in front of you to pull out from behind.
- Do not underestimate a driver's potential for aggression.