Samenvatting
Boise, Idaho, implemented a selective traffic enforcement program (step) in October 1979. Before that time, the city typically had one of the worst accident rates in the state. The objective of the program was to reduce the number of injury accidents occurring in Boise. The program included both enforcement and a media information campaign to deter accidents. An impact evaluation was performed to determine what reductions had occurred during the first 22 months of implementation. Both traditional enforcement and media influence were determined to be essential elements of this successful program.