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U.S. Department of Transportation
Triscallion_Black FY12-JPG-PedestrianTurningBus-052212v3.jpg
Pedestrian in Signalized Crosswalk Warning - Concept Illustration
•SmartWalk Motion Detector:
•Uses a microprocessor-analyzed Doppler detection method (based on a 24.125 GHz microwave transmitter receiver system)
•Mounted at 10’ with an Angle of 15˚ provides coverage starting ~10’ from pole and extending 55’ in an elliptical pattern.  The maximum width is ~15’.
•Mounting optimally needs to be centered in crosswalk
•Weight is 4lbs

•Data Inputs:
•Bus’ intersection ID and whether bus turns right or left
•Intersection ID where ped detection equipment exists
•Bus’ current GPS location
•Bus’ current GPS time
•Intersection geometry (MAP)
•Intersection targets (SPaT)
•Bus’ gear position
•Security credential management