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U.S. Department of Transportation
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Signal Phase and Timing (SPaT)
§Interface tested in the Connected Vehicle Highway Testbed (CVHT) at the Turner Fairbank Highway Research Center (TFHRC)
§Safety Pilot - 12 intersections equipped
□broadcast the SPaT information
▪Transit apps plan to use data, required a
▪    new field for pedestrian detection
□SPaT data will be logged to facilitate
 future application development
§Safety, mobility and environmental V2I
applications will need SPaT data