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Flashing Yellow Right Turns | Safe Design

Flashing Yellow Right Turns

MUTCD 11th Edition – Part 4

DEFINITION AND DESCRIPTION

Flashing yellow arrows (FYAs) for right turns may be used at signalized intersections to alert drivers they need to yield to pedestrians in the crosswalk or simply as a means of providing a signal head per lane for the entire approach.

Implementation Categories

Area(s) Traffic Operations, TSMO
Safety Category 3, 4

CONSIDERATIONS

  • Requires an additional signal head.
  • In order to provide an MUTCD compliant signal face for this application, FYAs for right turns can only be used if an exclusive right turn lane is present for vehicles turning right.
  • Similar to FYAs for left turns, which are familiar to most drivers.

APPLICATION

  • Evaluate the need for right-turn FYAs at intersections with pedestrian activity.
  • May also be used at locations where there is a need for a right-turn overlap (4-section FYA). Note: right-turn overlaps require approval from the Division of Traffic Operations.
  • When having a signal head over each lane is desired and a conflicting pedestrian movement exists, a FYA over the right-turn lane will often be the most appropriate arrangement.
  • See MUTCD Sections 4F.11 and 4F.15 for signal information.

example

Image Source: MUTCD 11th Edition

Complementary SSA Strategies

REFERENCES AND RESOURCES

Cunningham, C. K. Pyo, J. Baek, E. Byrom, S. Warchol. Guidelines for Implementation of Right Turn Flashing Yellow Arrows and Leading Pedestrian Intervals. 2020, May. Institute for Transportation Research and Education – NC State. https://connect.ncdot.gov/projects/research/RNAProjDocs/2018-21%20Final%20Report.pdf

Federal Highway Administration. Manual on Uniform Traffic Control Devices for Streets and Highways (MUTCD), Federal Highway Administration, U.S. Department of Transportation, Washington DC, 2023.  https://mutcd.fhwa.dot.gov/kno_11th_Edition.htm

Do you have more questions? Get in touch!

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CONTACT:

Jill Asher

Research Engineer 

jill.asher@uky.edu