This test focuses on DMV construction and maintenance road signs you’ll see in California work zones. These orange signs warn drivers of road work, flaggers, lane closures, or uneven pavement.
Understanding these signs helps you stay safe and avoid fines, as penalties for speeding in construction zones are doubled.

All questions and explanations are based on the California Driver Handbook 2026, and include both meanings and situational scenarios—for example, what to do when you see “ROAD WORK AHEAD” or “FLAGGER AHEAD.”
California DMV Construction & Maintenance Road Signs Test 2026
FAQ – California DMV Construction & Maintenance Road Signs Test
- What does a “WORKERS” sign mean?
- It indicates road construction or maintenance is taking place ahead. Workers may be present, so reduce speed, stay alert, and follow flaggers or traffic controls.
- How should I respond to a “DETOUR” sign?
- Follow the arrow and posted instructions to use the alternate route. Ignoring detours can cause accidents, delays, or legal penalties.
- What does “NO SHOULDER” indicate?
- The road ahead lacks a shoulder or emergency lane. Stay within your lane, avoid stopping, and be extra cautious.
- What does “ONE LANE ROAD AHEAD” mean?
- Traffic from both directions must share a single lane. Drivers should slow down, yield, and take turns safely passing.
- What should I do when I see “SHOULDER WORK AHEAD”?
- Slow down, remain in the travel lane, and be alert for workers, equipment, or uneven pavement near the road edge. Avoid drifting onto the shoulder.
