Purpose:
Rectangular Rapid Flash Beacons (RRFB) goal is to enhance safety by reducing crashes between vehicles and pedestrians at unsignalized intersections and mid-block pedestrian crossings by increasing driver awareness of potential pedestrian conflicts.
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Tapco (Traffic & Parking Control Co, Inc.)
References:
U.S. Department of Transportation Federal Highway Administration
Manual on Uniform Traffic Control Devices Specifications
Tapco (Traffic & Parking Control Co, Inc.)