The TT-37 sign is a mandatory traffic sign in Turkey that instructs drivers on how to navigate a roundabout. Unlike warning signs, this sign tells you what you *must* do. It can specify directions, lanes, or even a minimum speed. Always pay attention to this sign early to position your vehicle correctly and follow the required path smoothly.
Understand the meaning and requirements of the TT-37 Mandatory Roundabout sign to navigate Turkish roads safely. Crucial for your theory test revision, this sign dictates your required movement, ensuring smooth traffic flow and adherence to road sign interpretation.
Mandatory signs tell road users what they must do rather than what they must avoid. This sign can control direction of travel, lane side, roundabout movement, pedestrian or cycle facilities, horse paths, minimum speed, snow chains, or routes for vehicles carrying dangerous goods. A safe response is to identify the requirement early and move smoothly into the correct position. Official Turkish sign code: TT-37.
"Roundabout" gives a positive instruction that the driver or named road user must follow. It may require a direction, side, path, minimum speed, equipment, or special route.
Get clear, practical answers to the most common questions about the TT-37 - Roundabout road sign. Learn how the sign works, what rules it represents, and how it affects real driving situations. This FAQ strengthens your understanding and supports accurate decision making for the Turkish driving theory exam in Turkey.
The TT-37 sign mandates specific actions when approaching or navigating a roundabout. This could mean you must take a certain direction, use a specific lane, or adhere to a minimum speed. You must follow the instruction precisely as indicated by the sign and road markings.
If the TT-37 sign is accompanied by an image of a specific vehicle or road user, it means the mandatory instruction only applies to that particular category. For example, it might only apply to lorries or buses. If you are not driving that type of vehicle, the specific instruction for that vehicle doesn't apply to you, but always check for other signs or general rules.
A common trap is not understanding that 'mandatory' signs require a specific action, not just a general awareness. Learners might also forget to check mirrors and signal when positioning for the roundabout, which is crucial for safety and is tested. Ignoring the sign or failing to follow its specific instructions will result in a theory test failure.
No, you cannot choose your own path if the TT-37 sign is present and indicates a specific direction or lane. This is a mandatory sign, meaning you *must* comply with its instructions. The sign's purpose is to regulate traffic flow, so deviating from the required path is prohibited and dangerous.
If you notice the TT-37 'Roundabout' sign late, avoid sudden braking or swerving. Instead, try to safely position your vehicle according to the instruction as best you can, or if it's impossible to comply safely, consider exiting the road before the roundabout if possible or follow the safest immediate manoeuvre. However, the goal is always to see and react to these signs well in advance.
A clear reference image of the TT-37 - Roundabout road sign used in Turkey.

The TT-37 - Roundabout road sign may also be known by these alternative names or terms.
The TT-37 - Roundabout road sign is part of the Turkey Mandatory Signs category, which groups together signs with similar rules and functions.
Master Turkish traffic signs by comparing them with similar ones. This focused revision helps you quickly distinguish between signs like the TT-37 Roundabout, reducing confusion and boosting your success in the theory test revision.

Mandatory Turn Left Sign (TT-35B): You Must Turn Left Here

Mandatory Direction: Proceed Straight or Turn Right with the TT-35D Sign

Mandatory Direction: You Must Proceed Straight or Turn Left Here

TT-35F: Mandatory Direction - You Must Proceed Left or Right

Mandatory Turn Right Ahead Sign (TT-35G) in Turkey

Mandatory Turn Left Ahead: You Must Follow This Direction
After reviewing the full list of Turkish road signs, dive deeper into specific categories or test your knowledge with practice questions. Further study will solidify your understanding of trafik işaretleri for your ehliyet sınavı success.
View All Turkish Road Signs