Construction and Work Zones: Orange Devices and Flagger Authority
What this domain tests
Work-zone items test whether you can navigate a temporary traffic control setup you have never seen before. Everything in a work zone is orange, and the layout is engineered so no maneuver should surprise you.
The devices and the layout
- W20-1 ROAD WORK AHEAD and W20-7 FLAGGER AHEAD are the advance-warning signs. A temporary traffic control zone runs from advance warning, through a transition taper, into the activity area, and out through termination.
- Channelizing devices - cones, drums, and barricades. Drums are taller and more visible in rain and at night. A Type III barricade across the roadway means the road is closed.
- A flagger holding a STOP/SLOW paddle has the same authority as a traffic signal. Their direction overrides posted signs, signals, and pavement markings.
- Pilot car operation means one lane is carrying two-way traffic. Follow the pilot car; never pass it.
- Posted work-zone speed limits are lower, and Kentucky increases penalties for moving violations committed in an active work zone.
Worked example
You pass an orange ROAD WORK 1/2 MILE sign, then RIGHT LANE CLOSED 1000 FT, then reach a flagger displaying SLOW. The posted limit is still 55. You merge early, slow to the flagger's direction, and stay behind the pilot car. If the flagger then rotates the paddle to STOP, you stop - the sign said 55, but the flagger controls the lane.
Traps that cost marks
Treating a flagger as advisory rather than authoritative; confusing orange work-zone signing with yellow warning signing; racing down a closing lane to merge at the last moment; and assuming the normal speed limit still applies inside the activity area.