The Tennessee Department of Transportation has received interim approval for optional use of the Three Section Flashing Yellow Arrow Signal Faces statewide in Tennessee, including State highways and all local jurisdictions' roadways. Any local jurisdiction desiring to use the Three Section Flashing Yellow Arrow Signal Faces will need to coordinate with the Tennessee Department of Transportation (TDOT) State Traffic Engineer. FHWA requires TDOT to maintain and periodically update a list of all the locations where this traffic control device is used.
It is important to notice that this interim approval refers to the optional use of the Three Section Flashing Yellow Arrow (FYA) Signal that use the middle section to show both the FYA and the steady yellow arrow.
In 2014, FHWA approved the optional use of the
Three Section Flashing Yellow Arrow Signal Faces
that use the middle section to show both the FYA
and the steady yellow arrow based on an NCHRP
research titled "Evaluation of the Flashing Yellow
Arrow (FYA) Permissive Left-Turn and Yellow Arrow
Change Indications in Protected/Permissive Left-
Turn Control: The Impact of Separate and Shared
Yellow Signal Sections and Head Arrangements" and
on recommendation from the National Committee
on Uniform Traffic Control Devices (NCUTCD). The
NCHRP Web-Only Document 207 can be found at:
The primary advantage of allowing the optional use of a three-section FYA signal face that uses the middle section to show the FYA and the steady yellow arrow is that existing three-section protectedonly left-turn signal faces could easily be converted to three-section FYA signal faces. This conversion would allow the use of variable mode left-turn phasing on approach, with the protected-only leftturn phasing mode being used during peak periods when gaps in opposing traffic are infrequent and the protected/permissive left-turn phasing mode being used during off-peak periods when gaps in opposing traffic are more plentiful.
The city of Cleveland, TN has installed
the 3-section FYA and provides videos for the
operation of the signals in their website:
Knoxville, Tennessee 37996 | 865-974-1000
The flagship campus of the University of Tennessee System