Road signs test, with real signs
The wrong answers here are not random — they are the neighbouring signs in the same MUTCD series, the ones that actually get mixed up. Get one wrong and you learn the difference.
Name the sign
Fifteen signs to start. The full catalogue has 1044.
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Why
Construction warning for double lane shift to the left. This is CW1-4bL, a work zone sign.
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Why
Construction warning for double lane shift to the right. This is CW1-4bR, a work zone sign.
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Why
Construction warning for triple lane shift to the left. This is CW1-4cL, a work zone sign.
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Why
Construction warning for triple lane shift to the right. This is CW1-4cR, a work zone sign.
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Why
Construction warning for single lane shift to the left. This is CW1-4L, a work zone sign.
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Why
Construction warning for single lane shift to the right. This is CW1-4R, a work zone sign.
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Why
Warns of road work at specified distance ahead. This is CW20-1, a work zone sign.
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Why
Warns of path work at specified distance ahead. This is CW20-1b, a work zone sign.
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Why
Warns of detour at specified distance ahead. This is CW20-2, a work zone sign.
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Why
Warns of bicycle detour at specified distance ahead. This is CW20-2a, a work zone sign.
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Why
Warns that path is closed at specified distance ahead. This is CW20-3a, a work zone sign.
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Why
Warns of one lane road at specified distance ahead. This is CW20-4, a work zone sign.
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Why
Warns that 2 right lanes are closed at specified distance ahead. This is CW20-5aR, a work zone sign.
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Why
Warns that bike lane is closed at specified distance ahead. This is CW20-5b, a work zone sign.
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Why
Warns that right lane is closed at specified distance ahead. This is CW20-5R, a work zone sign.