Rectangular Rapid Flashing Beacons

When pavement markings aren’t enough to make pedestrians visible to oncoming traffic, Rectangular Rapid Flashing Beacons (RRFB) can be used to increase driver awareness. RRFBs pair flashing LED lights with marked pedestrian crossings. When a pedestrian activates the lights, they flash at an alternating frequency to make drivers aware of their intent to cross the street.

RRFBs are placed on both sides of a crosswalk, below the pedestrian crossing sign and above the diagonal arrow pointing to the crosswalk. The flashing pattern can be activated manually with a button, or with automated pedestrian detection, and are unlit when no pedestrian is waiting to cross.

Rectangular Rapid Flashing Beacons can lower pedestrian-car crashes by

NCHRP Research Report 841 Development of Crash Modification Factors for Uncontrolled Pedestrian Crossing Treatments, (2017).