The Institute of Transportation Engineers (ITE), the international association that represents traffic engineers, transportation planners and similar professionals who plan and design roads and neighborhoods, has defined traffic calming as the installation of measures designed "to reduce traffic speeds and/or cut-through volumes, in the interest of street safety, livability, and other public purposes."
Traffic calming is the installation of safety solutions such as radar speed signs or speed humps to slow or reduce traffic in order to enhance safety for pedestrians and motorists. Already used effectively in Europe for decades, traffic calming is becoming more and more popular in communities throughout North America. It is the most effective way to reduce speeding on residential streets, avoid traffic accidents and prevent fatalities. Traffic calming programs begin either with the vision of progressive municipalities, with the knowledge of traffic engineers or public works officials, or at the request of concerned residents.