Professor Ray
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| NO LEFT TURN |
COLOR: White, with black and/or red letters or symbols.
MEANING:
These signs give information about rules for traffic direction, lane use,
turning, speed, parking, and other special requirements.
Some regulation signs have a red circle with a slash over a symbol indicating that an action, such as a right turn, is not allowed, or that certain vehicles are restricted from the road. Rectangular white signs with black or red letters or symbols are clues to be alert for special rules.