Red light running happens frequently and is often deadly. In 2015, 771 people were killed and an estimated 137,000 were injured in crashes that involved red light running.

Red light cameras are an effective way to discourage red light running. Enforcement is the best way to get people to comply with any law, but it's impossible for police to be at every intersection. Cameras can fill the void. An Institute study comparing large cities with red light cameras to those without found the devices reduced the fatal red light running crash rate by 21 percent and the rate of all types of fatal crashes at signalized intersections by 14 percent.

Cameras don't violate privacy. There's no reason to expect privacy on a public road. Driving is a regulated activity, and people who obtain licenses are agreeing to abide by certain rules. Red light cameras are a mechanism to catch people who break those rules, just like traditional enforcement.

Proper signal timing makes intersections safer. Adequate yellow time reduces red light running and leads to fewer crashes.

Red light camera programs across the U.S.

Find out which communities operate red light camera programs and get information on state laws governing automated enforcement.

Video: Automated enforcement