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What does the ahead only sign mean in Turkey?
Last updated: 28 October 2026 · Sign code: TT-35c · Mandatory signs

In short: The ahead only sign means that after this point you may only go straight on; you may not turn left or right. It is a blue circle with a white arrow pointing up.
What should you do when you see this sign?
- Go straight on at the junction.
- If you need to turn, use the next junction.
Where and why is it used?
Blue circles are mandatory signs: you must go in the direction of the arrow. The same family includes signs allowing two directions, such as ahead or right, ahead or left, and right or left.
Blue circle Show what you must do. A red circle says "don't", a blue circle says "do this".
Which sign is it confused with?


Mandatory signs: other signs
- Keep right (TT-36a)
- Roundabout (mandatory) (TT-37)
- Minimum speed (TT-41a)
To see every sign with pictures on one page, go to the Turkish road signs guide. For the other traffic topics, try the traffic questions.
This is a simplified drawing for learning; the official sign's dimensions and details may differ.
Sources (Turkish): Highway Traffic Law No. 2918 · Highway Traffic Regulation · KGM road signs handbook, vertical signs
Türkçe: İleri mecburi yön işareti