Construction and Work Zone Signs
Construction and Work Zone Signs
Work zones are temporary, and their signs and markings can override the permanent ones. The exam checks whether you can separate temporary traffic control from a routine warning and whether you know who is actually in charge inside the zone.
Rules inside the work zone
- Orange is reserved for construction and maintenance: warning diamonds, "ROAD WORK AHEAD," "LANE CLOSED AHEAD," detour and arrow signs, and barricades.
- People and devices outrank signs. A flagger with a paddle, a pilot car, or an officer directing traffic must be obeyed even if a sign suggests otherwise.
- Temporary markings - orange or black-on-white tape, raised pavement markers - replace faded permanent lines; the old line may still be visible but is no longer valid.
- Expect abrupt lane shifts, narrow lanes, reduced and enforced speed limits, and stopped traffic over a crest.
- Arrow boards and channelizing devices (cones, drums, barricades) funnel you through the taper; merge at the first safe opening rather than at the last cone.
Worked example
An orange sign reads "RIGHT LANE CLOSED AHEAD," and a flashing arrow board points left. The message is not "move left when convenient" - merge left early and smoothly, because the taper closes the lane a short distance past the board.
Traps
Reading an orange sign as an ordinary yellow warning and failing to slow; driving past a flagger's STOP paddle because the road looks clear; following the old white edge line into a closed lane; and assuming the reduced limit ends at the last cone instead of at "END ROAD WORK."
Key reminder
Work zone limits are enforced, and the zone extends until the END ROAD WORK sign, not to the last piece of equipment.