Transportation

Aggressive Driving and Speed

Updated January 2008

The term “aggressive driving” covers a range of unsafe driving behavior. Speeding, tailgating, weaving in and out of traffic, running red lights, or any combination of these activities generally are considered aggressive driving. Although most drivers are familiar with this type of driving, it is difficult for legislatures to completely define aggressive driving. As of 2006, 12 states have passed laws aimed at aggressive drivers. Typically, these establish an aggressive driving offense and establish fines and penalties for committing such an offense.

Speed-related crashes cost society an estimated $40 billion per year. It is a factor in 30 percent of all fatal car crashes, according to NHTSA. In 2005, 13,113 people died as a result of speeding-related motor vehicle crashes. Speed is a factor in many crashes because of the physical forces at work. It takes longer to stop a speeding vehicle, and speed hinders the driver’s ability to detect dangerous situations. The IIHS reports that crash severity is directly related to speed. If speed increases by 50 percent, the energy released in a crash more than doubles. This increased force is what causes severe injuries and fatalities. Passenger restraint systems such as seat belts, air bags and child safety seats can be less effective at high rates of speed; this also contributes to injuries and fatalities.

State Maximum Posted Speed Limit Laws - 2006

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NCSL Publications

"Traffic Safety and Public Health: State Legislative Action 2007," Transportation Series No. 32, December 2007, by Melissa Savage, Matt Sundeen, and Anne Teigen.
"Traffic Safety and Public Health: State Legislative Action 2006," Transportation Series No. 31, March 2007, by Melissa Savage, Matt Sundeen and Jeanne Mejeur.
Aggressive Driving, Transportation Review, February 2007 by Anne Teigen
"Traffic Safety and Public Health: State Legislative Action 2004," Transportation Series No. 20, December 2004, by Melissa Savage, Matt Sundeen and Jeanne Mejeur.
"Highway Safety and Public Health: State Legislative Update, 2003," Transportation Series, January 2004, No. 19 by Melissa Savage, Matt Sundeen, Cathrine Chan.
Aggressive Driving: Background and Overview Report by Janet B. Goehring, January 2000.
"Speed--What's Your Limit?" by Janet B. Goehring and James B. Reed, LegisBrief (Vol. 4, No. 17), March 1996.

Transportation

Aggressive Driving and Speed

State Maximum Posted Speed Limit Laws - 2006

NCSL Publications

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