US road signs test

31 signs and markings shared by every state. Pick what each means and see the reason.

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What does this sign mean?

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Question 1 of 31

  1. Regulatory signs

    What does this sign mean?

    A red octagon with a white border and the word STOP in white
    • Every approach to the intersection has a STOP sign
    • A STOP sign is coming up
    • Slow down and let other traffic go first
    • Come to a full stop, then go when it is safe Right

    The right answer is D: Come to a full stop, then go when it is safe

    WhyStop sign. The stop sign means you must come to a complete stop and wait until it is safe to go. The octagon shape is used only for STOP signs.

    Source: MUTCD 11th Edition, Chapter 2B, Regulatory Signs, Barricades, and Gates: Section 2B.04, FHWA, MUTCD 11th Edition, Chapter 2A, General (signs): Section 2A.05, FHWA, MUTCD 11th Edition, Part 3, Markings: Section 3B.19, FHWA, MUTCD 11th Edition, FHWA

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  2. Regulatory signs

    What does this sign mean?

    A downward-pointing triangle with a wide red border, a white center and the word YIELD in red
    • Come to a full stop, then go when it is safe
    • Slow down and let other traffic go first Right
    • Traffic will merge into your lane
    • Every approach to the intersection has a STOP sign

    The right answer is B: Slow down and let other traffic go first

    WhyYield sign. The yield sign means you must let other traffic go first. Slow down, and stop when you need to, so you do not interfere with traffic that has the right-of-way.

    Source: MUTCD 11th Edition, Chapter 2B, Regulatory Signs, Barricades, and Gates: Sections 2B.05, 2B.10, FHWA, MUTCD 11th Edition, Chapter 2A, General (signs): Section 2A.05, FHWA, MUTCD 11th Edition, Part 3, Markings: Section 3B.19, FHWA, MUTCD 11th Edition, FHWA

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  3. Regulatory signs

    What does this sign mean?

    A STOP sign with a red ALL WAY plaque in white letters mounted below it
    • Every approach to the intersection has a STOP sign Right
    • Slow down and let other traffic go first
    • Come to a full stop, then go when it is safe
    • Another road crosses yours ahead

    The right answer is A: Every approach to the intersection has a STOP sign

    WhyAll-way stop sign. The ALL WAY plaque under a STOP sign means every approach to the intersection has a STOP sign, so all traffic must stop. It is a red plaque with white letters.

    Source: MUTCD 11th Edition, Chapter 2B, Regulatory Signs, Barricades, and Gates: Sections 2B.04, 2B.12, FHWA, MUTCD 11th Edition, Chapter 2C, Warning Signs and Object Markers: Section 2C.66, FHWA, MUTCD 11th Edition, FHWA

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  4. Regulatory signs

    What does this sign mean?

    A red circle on a white square, with a white bar across the middle and the words DO NOT ENTER in white
    • Pass to the right of the island or obstacle
    • All traffic moves in the arrow’s direction
    • Traffic comes toward you here; do not go in Right
    • You are going against traffic: turn around safely

    The right answer is C: Traffic comes toward you here; do not go in

    WhyDo not enter sign. The DO NOT ENTER sign means you must not drive into the road or ramp beyond it, because traffic there comes toward you, such as at the wrong end of a one-way road.

    Source: MUTCD 11th Edition, Chapter 2B, Regulatory Signs, Barricades, and Gates: Section 2B.46, FHWA, MUTCD 11th Edition, FHWA

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  5. Regulatory signs

    What does this sign mean?

    A red horizontal rectangle with the words WRONG WAY in white
    • All traffic moves in the arrow’s direction
    • Pass to the right of the island or obstacle
    • You are going against traffic: turn around safely Right
    • Traffic comes toward you here; do not go in

    The right answer is C: You are going against traffic: turn around safely

    WhyWrong way sign. The WRONG WAY sign means you have entered a one-way road or ramp against the flow of traffic. Get out of the path of traffic as soon as it is safe and turn around.

    Source: MUTCD 11th Edition, Chapter 2B, Regulatory Signs, Barricades, and Gates: Section 2B.47, FHWA, MUTCD 11th Edition, FHWA

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  6. Regulatory signs

    What does this sign mean?

    A white vertical rectangle with the words SPEED LIMIT and the number 25 in black
    • The road can be slippery when wet
    • The road curves ahead
    • The maximum speed allowed on this road Right
    • A school area, zone or crossing is near

    The right answer is C: The maximum speed allowed on this road

    WhySpeed limit sign. The SPEED LIMIT sign shows the maximum speed allowed on that road, in miles per hour. It is a maximum, not a target.

    Source: MUTCD 11th Edition, Chapter 2B, Regulatory Signs, Barricades, and Gates: Section 2B.21, FHWA, MUTCD 11th Edition, Part 1, General: Section 1D.05, FHWA, MUTCD 11th Edition, Part 7, Traffic Control for School Areas: Section 7B.05, FHWA, MUTCD 11th Edition, FHWA

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  7. Regulatory signs

    What does this sign mean?

    A white square with a black U-turn arrow inside a red circle with a red slash
    • Wait for the green before turning
    • Traffic comes toward you here; do not go in
    • All traffic moves in the arrow’s direction
    • Do not turn around here Right

    The right answer is D: Do not turn around here

    WhyNo U-turn sign. The No U-turn sign means you must not make a U-turn at that location. The red circle and slash show the move is prohibited.

    Source: MUTCD 11th Edition, Chapter 2B, Regulatory Signs, Barricades, and Gates: Section 2B.26, FHWA, MUTCD 11th Edition, FHWA

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  8. Regulatory signs

    What does this sign mean?

    A white vertical rectangle with the words NO TURN ON RED in black
    • Wait for the green before turning Right
    • Traffic lights are ahead
    • Where to stop, and where people cross
    • Do not turn around here

    The right answer is A: Wait for the green before turning

    WhyNo turn on red sign. The NO TURN ON RED sign means you must not turn while the signal shows a red light, even after stopping. Wait for a green light or green arrow.

    Source: MUTCD 11th Edition, Chapter 2B, Regulatory Signs, Barricades, and Gates: Section 2B.60, FHWA, MUTCD 11th Edition, FHWA

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  9. Regulatory signs

    What does this sign mean?

    A black horizontal rectangle with a white arrow pointing right and the words ONE WAY in black inside the arrow
    • Pass to the right of the island or obstacle
    • Traffic comes toward you here; do not go in
    • All traffic moves in the arrow’s direction Right
    • You are going against traffic: turn around safely

    The right answer is C: All traffic moves in the arrow’s direction

    WhyOne way sign. The ONE WAY sign means traffic on that street may travel only in the direction of the arrow. When you turn onto it, turn in that direction.

    Source: MUTCD 11th Edition, Chapter 2B, Regulatory Signs, Barricades, and Gates: Section 2B.49, FHWA, MUTCD 11th Edition, FHWA

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  10. Regulatory signs

    What does this sign mean?

    A white vertical rectangle with a black island shape and a black arrow curving up around its right side
    • Traffic comes toward you here; do not go in
    • A median will split the two directions
    • Pass to the right of the island or obstacle Right
    • All traffic moves in the arrow’s direction

    The right answer is C: Pass to the right of the island or obstacle

    WhyKeep right sign. The Keep Right sign means you must pass to the right of the island, median or obstruction it stands on.

    Source: MUTCD 11th Edition, Chapter 2B, Regulatory Signs, Barricades, and Gates: Section 2B.39, FHWA, MUTCD 11th Edition, FHWA

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  11. Regulatory signs

    What does this sign mean?

    A white vertical rectangle with the words DO NOT PASS in black
    • Passing is not allowed here Right
    • The road curves ahead
    • Passing is not allowed from here
    • Yellow lines separate opposite directions

    The right answer is A: Passing is not allowed here

    WhyDo not pass sign. The DO NOT PASS sign means you must not pass other vehicles in that zone. It backs up the no-passing lines painted on the road.

    Source: MUTCD 11th Edition, Chapter 2B, Regulatory Signs, Barricades, and Gates: Section 2B.36, FHWA, MUTCD 11th Edition, Chapter 2C, Warning Signs and Object Markers: Section 2C.53, FHWA, MUTCD 11th Edition, FHWA

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  12. Regulatory signs

    What does this sign mean?

    Two white boards crossed in an X with the words RAILROAD CROSSING in black
    • A railroad crossing: yield to trains Right
    • A railroad crossing is ahead
    • Slow down and let other traffic go first
    • Come to a full stop, then go when it is safe

    The right answer is A: A railroad crossing: yield to trains

    WhyRailroad crossbuck sign. The crossbuck marks a railroad crossing. In most states it means you must yield to trains: slow down, look and listen, and stop if a train is coming.

    Source: MUTCD 11th Edition, Part 8, Traffic Control for Railroad and Light Rail Transit Grade Crossings: Sections 8B.03, 8B.04, FHWA, MUTCD 11th Edition, FHWA

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  13. Warning signs

    What does this sign mean?

    A yellow diamond with a black arrow curving to the right
    • Another road crosses yours ahead
    • The road can be slippery when wet
    • Passing is not allowed from here
    • The road curves ahead Right

    The right answer is D: The road curves ahead

    WhyCurve ahead sign. The curve sign warns that the road curves ahead in the direction of the arrow. Slow down before the curve.

    Source: MUTCD 11th Edition, Chapter 2C, Warning Signs and Object Markers: Sections 2C.02, 2C.07, 2C.59, FHWA, MUTCD 11th Edition, FHWA

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  14. Warning signs

    What does this sign mean?

    A yellow diamond with a black plus-shaped crossroad symbol
    • Another road crosses yours ahead Right
    • A STOP sign is coming up
    • Traffic lights are ahead
    • Traffic will merge into your lane

    The right answer is A: Another road crosses yours ahead

    WhyCross road sign. The cross road sign warns of an intersection ahead where another road crosses yours. Watch for vehicles turning in or crossing.

    Source: MUTCD 11th Edition, Chapter 2C, Warning Signs and Object Markers: Sections 2C.41, 2C.02, FHWA, MUTCD 11th Edition, FHWA

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  15. Warning signs

    What does this sign mean?

    A yellow diamond with a small red octagon and a black arrow pointing up to it
    • A STOP sign is coming up Right
    • Another road crosses yours ahead
    • Traffic lights are ahead
    • Come to a full stop, then go when it is safe

    The right answer is A: A STOP sign is coming up

    WhyStop ahead sign. The Stop Ahead sign warns that there is a STOP sign ahead that you might not see in time. Start slowing down.

    Source: MUTCD 11th Edition, Chapter 2C, Warning Signs and Object Markers: Section 2C.35, FHWA, MUTCD 11th Edition, FHWA

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  16. Warning signs

    What does this sign mean?

    A yellow diamond with a traffic light showing red, yellow and green
    • Traffic lights are ahead Right
    • A STOP sign is coming up
    • Another road crosses yours ahead
    • Wait for the green before turning

    The right answer is A: Traffic lights are ahead

    WhySignal ahead sign. The Signal Ahead sign warns of a traffic signal ahead that may be hard to see in time. Be ready to stop.

    Source: MUTCD 11th Edition, Chapter 2C, Warning Signs and Object Markers: Section 2C.35, FHWA, MUTCD 11th Edition, FHWA

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  17. Warning signs

    What does this sign mean?

    A yellow diamond with a black arrow pointing up and a line joining it from the side
    • Traffic will merge into your lane Right
    • Slow down and let other traffic go first
    • One lane ends; move over in good time
    • White lines separate lanes going the same way

    The right answer is A: Traffic will merge into your lane

    WhyMerge sign. The Merge sign warns that traffic from another road will merge into your lane ahead. Be ready to adjust your speed and let it in safely.

    Source: MUTCD 11th Edition, Chapter 2C, Warning Signs and Object Markers: Section 2C.45, FHWA, MUTCD 11th Edition, FHWA

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  18. Warning signs

    What does this sign mean?

    A yellow diamond showing two lanes where the right-hand lane narrows and ends
    • Pass to the right of the island or obstacle
    • Traffic will merge into your lane
    • One lane ends; move over in good time Right
    • White lines separate lanes going the same way

    The right answer is C: One lane ends; move over in good time

    WhyLane ends sign. The Lane Ends sign warns that the number of lanes in your direction is about to drop. If your lane is the one ending, find a safe gap and move over.

    Source: MUTCD 11th Edition, Chapter 2C, Warning Signs and Object Markers: Sections 2C.47, 2C.45, FHWA, MUTCD 11th Edition, FHWA

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  19. Warning signs

    What does this sign mean?

    A yellow diamond showing a road splitting around a median island
    • A median will split the two directions Right
    • Yellow lines separate opposite directions
    • Pass to the right of the island or obstacle
    • A center lane for left turns from both directions

    The right answer is A: A median will split the two directions

    WhyDivided highway sign. The Divided Highway sign warns that the two directions of traffic ahead will be separated by a median or barrier. Keep to the right of it.

    Source: MUTCD 11th Edition, Chapter 2C, Warning Signs and Object Markers: Sections 2C.20, 2C.21, FHWA, MUTCD 11th Edition, FHWA

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  20. Warning signs

    What does this sign mean?

    A yellow diamond with a black car and wavy skid marks behind it
    • The road curves ahead
    • Deer may be on or crossing the road
    • The road can be slippery when wet Right
    • The maximum speed allowed on this road

    The right answer is C: The road can be slippery when wet

    WhySlippery when wet sign. The Slippery When Wet sign warns that the road ahead can be unexpectedly slippery. Slow down and avoid sudden braking or steering.

    Source: MUTCD 11th Edition, Chapter 2C, Warning Signs and Object Markers: Section 2C.30, FHWA, MUTCD 11th Edition, FHWA

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  21. Warning signs

    What does this sign mean?

    A yellow diamond with a black leaping deer
    • The road can be slippery when wet
    • The road curves ahead
    • Deer may be on or crossing the road Right
    • People may be crossing ahead

    The right answer is C: Deer may be on or crossing the road

    WhyDeer crossing sign. The deer crossing sign warns that deer may enter the road ahead. Slow down and watch the sides of the road.

    Source: MUTCD 11th Edition, Chapter 2C, Warning Signs and Object Markers: Section 2C.55, FHWA, MUTCD 11th Edition, FHWA

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  22. Warning signs

    What does this sign mean?

    A fluorescent yellow-green diamond with a black walking person
    • Where to stop, and where people cross
    • Deer may be on or crossing the road
    • People may be crossing ahead Right
    • A school area, zone or crossing is near

    The right answer is C: People may be crossing ahead

    WhyPedestrian crossing sign. The pedestrian crossing sign warns that people may be crossing the road ahead. Slow down and be ready to stop for them.

    Source: MUTCD 11th Edition, Chapter 2C, Warning Signs and Object Markers: Sections 2C.02, 2C.55, FHWA, MUTCD 11th Edition, FHWA

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  23. Warning signs

    What does this sign mean?

    A fluorescent yellow-green five-sided sign shaped like a house, with two black children walking
    • The maximum speed allowed on this road
    • People may be crossing ahead
    • A school area, zone or crossing is near Right
    • Where to stop, and where people cross

    The right answer is C: A school area, zone or crossing is near

    WhySchool sign. The five-sided School sign warns that you are near a school area, a school zone or a crossing used by schoolchildren. Slow down and watch for children.

    Source: MUTCD 11th Edition, Part 7, Traffic Control for School Areas: Section 7B.02, FHWA, MUTCD 11th Edition, Chapter 2C, Warning Signs and Object Markers: Section 2C.02, FHWA, MUTCD 11th Edition, Chapter 2A, General (signs): Section 2A.05, FHWA, MUTCD 11th Edition, FHWA

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  24. Warning signs

    What does this sign mean?

    A yellow pennant-shaped triangle pointing right with the words NO PASSING ZONE in black
    • The road curves ahead
    • Passing is not allowed from here Right
    • Yellow lines separate opposite directions
    • Passing is not allowed here

    The right answer is B: Passing is not allowed from here

    WhyNo passing zone sign. The pennant-shaped NO PASSING ZONE sign marks the start of a stretch where you must not pass. It stands on the left side of the road.

    Source: MUTCD 11th Edition, Chapter 2C, Warning Signs and Object Markers: Section 2C.53, FHWA, MUTCD 11th Edition, Chapter 2A, General (signs): Section 2A.05, FHWA, MUTCD 11th Edition, FHWA

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  25. Warning signs

    What does this sign mean?

    A round yellow sign with a black X and the letters R and R
    • A railroad crossing is ahead Right
    • Traffic lights are ahead
    • A railroad crossing: yield to trains
    • A STOP sign is coming up

    The right answer is A: A railroad crossing is ahead

    WhyRailroad crossing ahead sign. The round yellow sign with an X and two Rs warns of a railroad crossing ahead. Slow down, look and listen for trains, and be ready to stop.

    Source: MUTCD 11th Edition, Part 8, Traffic Control for Railroad and Light Rail Transit Grade Crossings: Section 8B.06, FHWA, MUTCD 11th Edition, Chapter 2A, General (signs): Section 2A.05, FHWA, MUTCD 11th Edition, FHWA

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  26. Guide and service signs

    What does this sign mean?

    A blue square with a white border and a large white letter H
    • The way to a hospital open 24 hours Right
    • Shows where you are along the highway
    • The maximum speed allowed on this road
    • People may be crossing ahead

    The right answer is A: The way to a hospital open 24 hours

    WhyHospital sign. The blue sign with a white H shows the way to a hospital. The MUTCD limits it to facilities open 24 hours a day, 7 days a week.

    Source: MUTCD 11th Edition, Chapters 2H to 2N, General Information and Service Signs: Section 2I.02, FHWA, MUTCD 11th Edition, Part 1, General: Section 1D.05, FHWA, MUTCD 11th Edition, FHWA

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  27. Guide and service signs

    What does this sign mean?

    A narrow green vertical sign with a white border, the word MILE and the number 12 in white
    • The way to a hospital open 24 hours
    • Shows where you are along the highway Right
    • The maximum speed allowed on this road
    • A median will split the two directions

    The right answer is B: Shows where you are along the highway

    WhyMile marker sign. A mile marker, officially a reference location sign, shows the distance point along a highway. It helps you track your progress and tell emergency services where you are.

    Source: MUTCD 11th Edition, Chapters 2H to 2N, General Information and Service Signs: Sections 2H.11, 2H.01, FHWA, MUTCD 11th Edition, FHWA

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  28. Pavement markings

    What do these markings mean?

    On a two-lane road, double solid yellow lines, then a solid line beside a broken line, then a single broken yellow line
    • A center lane for left turns from both directions
    • Yellow lines separate opposite directions Right
    • White lines separate lanes going the same way
    • Passing is not allowed here

    The right answer is B: Yellow lines separate opposite directions

    WhyYellow center lines. Yellow center lines separate traffic going in opposite directions. A broken line on your side means you may pass with care; a solid line on your side means you may not.

    Source: MUTCD 11th Edition, Part 3, Markings: Sections 3A.03, 3B.01, 3B.03, FHWA, MUTCD 11th Edition, FHWA

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  29. Pavement markings

    What do these markings mean?

    A three-lane road with all traffic going one way, broken white lines between lanes, a solid white line on the right edge and a solid yellow line on the left edge
    • One lane ends; move over in good time
    • White lines separate lanes going the same way Right
    • Yellow lines separate opposite directions
    • Traffic will merge into your lane

    The right answer is B: White lines separate lanes going the same way

    WhyWhite lane lines. White lane lines separate lanes of traffic going in the same direction. A broken white line means you may change lanes with care; a solid white line means lane changes are discouraged.

    Source: MUTCD 11th Edition, Part 3, Markings: Sections 3A.03, 3B.06, 3B.09, FHWA, MUTCD 11th Edition, FHWA

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  30. Pavement markings

    What do these markings mean?

    A center lane with a solid and a broken yellow line on each side and white left-turn arrows pointing in opposite directions
    • White lines separate lanes going the same way
    • A center lane for left turns from both directions Right
    • A median will split the two directions
    • Yellow lines separate opposite directions

    The right answer is B: A center lane for left turns from both directions

    WhyTwo-way left-turn lane. A two-way left-turn lane is a center lane that drivers from both directions use to turn left. Each side has a solid yellow line outside and a broken yellow line inside.

    Source: MUTCD 11th Edition, Part 3, Markings: Section 3B.05, FHWA, MUTCD 11th Edition, FHWA

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  31. Pavement markings

    What do these markings mean?

    A wide white stop line across the lane and a crosswalk of white bars in front of it
    • People may be crossing ahead
    • Where to stop, and where people cross Right
    • A school area, zone or crossing is near
    • Come to a full stop, then go when it is safe

    The right answer is B: Where to stop, and where people cross

    WhyStop lines and crosswalks. A white stop line shows where to stop for a STOP sign or signal. A marked crosswalk shows where people on foot cross. Stop behind the line and keep the crosswalk clear.

    Source: MUTCD 11th Edition, Part 3, Markings: Sections 3B.19, 3C.01, FHWA, MUTCD 11th Edition, FHWA

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31 questions in this test · 45 free questions on this website and 379 in the app, checked against the MUTCD, the Uniform Vehicle Code and Texas law, with the reason for every answer. About the app

Out now on iPhone and Android.

Shape and color give most signs away: an octagon is always STOP, a yellow diamond warns and a white rectangle states a rule. If you get stuck, read US road sign shapes and colors first. Many states test signs separately: Georgia, for example, has a 20-question road signs test, and in Virginia you must get all 10 sign questions right.

Keep going

Sign pictures are our own simplified drawings of the MUTCD designs, which are in the public domain (MUTCD Section 1D.06). The state examples come from the Georgia Drivers Manual and the Virginia DMV knowledge exam page, checked on October 20, 2026.

Sources

(2)
  1. MUTCD 11th Edition, FHWA. FHWA lists the current version as the 11th Edition with Revision 1, dated December 2025
  2. State MUTCD information, FHWA