Speeding is a significant traffic safety concern. The National Highway Traffic Safety Administration (NHTSA) reported that, in 2009, speeding was a contributing factor in 31 percent of fatal crashes, and that on average, 1,000 Americans are killed every month in speed-related crashes.1 The 2011 NHTSA National Survey of Speeding Attitudes and Behavior found that nearly half of drivers surveyed said speeding was a problem on U.S. roads, and it was very important that something be done to reduce speeding. An overwhelming 91 percent agreed with the statement that “everyone should obey the speed limits because it’s the law.”2 With 86 percent of total traffic fatalities in 2005 occurring on non-interstate roadways, traditional enforcement such as vehicle pacing is often impractical or imprudent, and other enforcement methods must be employed.3