The technology is set to photograph only those vehicles entering the intersection after the light has turned red. While drivers who fear a ticket for red light running can cause a rear end collision by applying their brakes too rapidly, these types of accidents are far less dangerous than the typical right-angle collision caused by red light running, indicating a positive aggregate benefit. A 2007 study of three Iowa communities found no increase in rear end collisions. A 2005 study in Raleigh, North Carolina showed a 25 percent reduction in rear end accidents. As confirmed by two recent studies funded by the FHTSA, red light photo enforcement benefit communities by reducing dangerous right angle crashes at the intersections where the cameras are deployed, as well as other intersections located near red light camera-enforced intersections.