WZSC Glossary
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FHWA | |
FlaggerA person who actively controls the flow of vehicular traffic into and/or through a temporary traffic control zone using hand-signaling devices or an Automated Flagger Assistance Device (AFAD). MUTCD 2009 Edition with May 2012 Revisions 1 and 2 | ||
FLAGGER TAPER | |
FlasherA device used to turn highway traffic signal
indications on and off at a repetitive rate of approximately once
per second. MUTCD 2009 Edition with
May 2012 Revisions 1
and 2 | |
Flashingan operation in which a light source, such as a traffic signal indication, is
turned on and off repetitively. MUTCD 2009 Edition with
May 2012 Revisions 1
and 2 | |
Flashing ModeA mode of operation in which at least one traffic signal indication in
each vehicular signal face of a
highway traffic signal
is turned on and off repetitively. MUTCD 2009 Edition with
May 2012 Revisions 1
and 2 | |
Flashing-Light SignalsA warning device consisting of two red signal indications
arranged horizontally that are activated to flash alternately when
rail traffic is
approaching or present at a grade crossing.
MUTCD 2009 Edition with
May 2012 Revisions 1
and 2 | |
FOG LINEA pavement marking line that delineates the edge of the traveled way. Also
referred to as the “edge line.” | |
Foot-candleOne lumen per square foot. | |
FRA | |
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