Flagger Certification Exam Study Guide | 100% Correct Answers | Verified | Latest 2024 Version

How long flagger certification is valid - 3 years TTC - Temporary Traffic Control The quality or state of being conspicuous - Conspicuity All signals, marking, and other devices used to regulate, warn, or guide traffic, placed on, over, or adjacent to a street, highway, or bikeway by authority of a public agency having jurisdiction. - Traffic Control Devices All 4 work zones must conform to these (4) standards - -MUTCD -Local -State -Comcast (4) Typical Comcast traffic control devices - -Cones -Signs -Vehicle strobe -High visibility garments (5) Principles of traffic control devices - -Fulfill a need -Command attention -Convey a clear, simple meaning -Command repect from road users -Give adequate time for proper response Score needed to pass the flagger written exam - 80 percent This is where a Flagger should be standing at all times. - Shoulder by the fog/edge line. These two kinds of crashes occur frequently near the taper and channeling devices - Fixed Object & Sideswipe Stop/Slow retroreflective paddles must be ----- wide, and letters ------ high. - 18" wide, 6" lettersFlaggers shall never flag from these (3) main areas. - -On/Under a Bridge -On/Under an overpass -In a vehicle Retroreflective vests must be visible to this minimum distance. - 1000 ft For nighttime flagging, this type of safety vest should be worn. ,