Road Signs · Construction
Construction and Work Zone Signs
Every construction and work zone signs you'll encounter on the DMV permit test, with shape, color, and meaning in plain English.
Road Work Ahead
Work zone ahead. Reduce speed and watch for workers, equipment, and shifted lanes.
Fines double in posted construction zones in most states.
Sign details →Flagger Ahead
A flagger is directing traffic. Obey their signals — they override regular traffic signs.
Flaggers may use a STOP/SLOW paddle or red flag.
Sign details →Detour
The normal route is closed. Follow the marked detour.
Detour signs are arrowed to lead you back to the original route.
Sign details →Lane Ends Merge Right
Your lane is ending. Merge into the adjacent open lane.
Begin merging early — last-second moves cause crashes in work zones.
Sign details →Workers Ahead
Construction workers are on or near the roadway. Slow significantly.
Hitting a worker is a felony in most states regardless of intent.
Sign details →How construction and work zone signs appear on the DMV test
Construction and Work Zone Signs account for a meaningful chunk of every state DMV permit test. Examiners may show you a picture and ask the meaning, describe a situation and ask which sign would be posted, or give you a sign's shape and color and ask you to identify its general purpose.
The most reliable way to study them is to drill in groups by shape: study every diamond once, then every rectangle, then every pentagon. Your brain remembers patterns far better than isolated facts. Use our main road signs page to flip between categories, and then take a state-specific practice test to confirm you can apply the knowledge under question pressure.
Remember: every state's DMV uses the same federal Manual on Uniform Traffic Control Devices (MUTCD), so a sign you learn for the California test will look identical in Texas, New York, or Florida. The exact wording of test questions varies, but the signs do not.