2. Is the safe speed to travel in ideal conditions
The speed posted on a sign that warns you of a curve ahead, is the safe speed to travel in ideal conditions.
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While driving, we came to many signs and symbols. The speed limit sign is one of those. It shows the average speed in ideal conditions to drive.
The speed limit especially on curves show a safe speed to drive while driving through the curve. It shows the safest speed to drive in ideal condition to cross the curve.