Vertical rectangles tell drivers:

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What is not allowed.
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The direction they should travel.
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The law.
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That there's a school zone ahead.
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Explanation
Vertical traffic signs in the shape of a rectangle, with black markings on a white background, are usually regulatory signs. They provide drivers with commands that are enforceable by law.
Answer Statistics
🟠 This question is challenging — 33.9% of our users get this question wrong.
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