MUTCD 11th Edition (2023)
Section 4L.01 — Application of Rectangular Rapid Flashing Beacons
Manual on Uniform Traffic Control Devices, Section 4L.01. Standards, guidance, options and support statements, with figures and cross-references.
Section 4L.01 Application of Rectangular Rapid Flashing Beacons Option: 01 A pedestrian-activated and/or bicyclist-activated rectangular rapid flashing beacon (RRFB) may be used to provide supplemental emphasis to pedestrian, school, and trail warning signs at marked crosswalks across uncontrolled approaches. Standard: 02 An RRFB shall only be installed to function as a Warning Beacon (see Section 4S.03). Except as otherwise provided in this Chapter, all other provisions of the MUTCD applicable to Warning Beacons shall apply to RRFBs. 03 An RRFB shall only be used to supplement a post-mounted…
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