Which of the following road signs prohibits vehicles to make a left-turn into a gas station?

- 431
- 428
- 429· Correct answer
- 205

Sign 429 prohibits turning left. This is a prohibitory sign (red) showing a left arrow with a line through it. The sign applies to all left turns, including into a petrol station.
Left turn prohibited = sign 429
Confusing turn-prohibition signs with mandatory turn or U-turn signs
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