BICYCLE
RECTANGULAR RAPID FLASHING BEACONS (RRFB) Rectangular Rapid Flashing Beacons (RRFB) are user-actuated flashing lights incorporated into pedestrian warning sign assembly that increase driver awareness of a pedestrian crossing at unsignalized intersections or mid-block locations.
C
EMERGING TECHNOLOGIES
PEDESTRIAN
B A
Source: Kimley-Horn and Associates
DESIGN FEATURES A Advance yield lines should be installed 20’-
50’ in advance of the crosswalk
B Advance warning signs should be installed in
conjunction with the advance yield line
C Sign and beacon should be Installed on
both sides of the roadway at the edge of the crosswalk. If there is a pedestrian refuge or other type of median, an additional beacon should be installed in the median
MENIFEE Active Transportation Plan
Design in accordance with FHWA’s Interim Approval 11 (IA-21)
200
OTHER CONSIDERATIONS RRFB’s are usually implemented on collectors and arterials with high volumes of pedestrians and bicycles. RRFBs shall not be installed at stop-controlled or signalized intersections. Increases yielding behavior of drivers at crosswalks when supplementing standard pedestrian crossing signs. Walk time for RRFBs can be calculated based on 3.5 feet per second. RRFB systems are typically solar-powered.
REFERENCES NACTO, Urban Bikeway Design Guide FHWA, Safety Effects of Marked Vs Unmarked Crosswalks at Uncontrolled Locations CA Manual on Uniform Traffic Control Devices (CA MUTCD), 2014, Revision 5 FHWA, UrInterim Approval for the Optional Use of Pedestrian-Actuated Rectangular Rapid-Flashing Beacons at Uncontrolled Marked
Source: Texas A&MTransportation Institute
