Most car accidents happen close to home. While this information isn’t measured annually, an often-cited 2001 Progressive Insurance and Dolphin Technologies' study found that 52% of accidents are within five miles of a driver's home and 69% are within 10 miles. An NHTSA study on seatbelt use a few years later found similar results. And a study of trauma hospital treatment found that the median of accidents for those injured and treated at a hospital emergency room was 4.6 miles (median means half were more and half were less.). The median for vehicle accident fatalities was 5.5 miles. Most experts agree that most peoples’ travel in general tends to be close to home, and drivers are also more likely to let their guard down in familiar territory.