Most communities rate benefits of emergency vehicle traffic signal pre-emption from “moderate” to “very high”. Traffic signal pre-emption systems allow a temporary interruption to normal operation of traffic signals to give emergency vehicles priority. This is done by changing traffic signals in the path of… Content type Benefit Date Posted 02/09/2016 Taxonomy (ARC-IT) Emergency Vehicle Preemption (PS03) Geolocation links Austin, Texas, United States | Henderson, Nevada, United States | Windsor, California, United States | Baltimore, Maryland, United States | Redding, California, United States | New York, New York, United States | Salt Lake City, Utah, United States | Bellevue, Washington, United States