The TT-4 'No Entry' sign is a crucial prohibitory traffic sign used in Turkey to indicate that a specific movement or access is forbidden. When you see this sign, it means you are not allowed to proceed into the area or along the road ahead. Always pay close attention to any supplementary plates that might further define the restriction by vehicle type, time, or direction, and be prepared to choose an alternative legal route.
This explanation helps you recognise the Turkish 'No Entry' (TT-4) sign and understand its critical meaning for your driving decisions. Mastering road sign interpretation is key for passing your theory test and driving safely in Türkiye.
Prohibitory signs are binding traffic controls used to prevent unsafe or unsuitable movements. This sign may restrict entry, overtaking, turning, pedestrians, vehicle types, vehicle dimensions, weight, speed, dangerous goods, horns, or stopping for controls such as customs. Drivers should identify whether the sign applies to them before entering the controlled point and choose another legal action if it does. Official Turkish sign code: TT-4.
"No entry" tells drivers that a movement, access, vehicle category, vehicle condition, speed, stopping action, or behaviour is prohibited. The restriction applies from the sign unless another sign or plate changes it.
Get clear, practical answers to the most common questions about the TT-4 - No entry 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-4 'No Entry' sign prohibits drivers from entering a specific road, area, or continuing a movement. This prohibition can apply to all vehicles, or it may be restricted to certain types of vehicles, directions, or situations as indicated by supplementary plates. Always assume the prohibition applies to you unless an exception is clearly stated.
You might encounter the TT-4 'No Entry' sign at the beginning of one-way streets, at junctions where entry is prohibited, or to prevent access to areas that are not suitable for general traffic. It's essential to read any accompanying plates carefully as they provide specific details about the restriction.
If the TT-4 'No Entry' sign prevents you from taking your planned route, you must not ignore it. Instead, you need to find a legal alternative route. Look for other traffic signs that guide you to a permissible path or a place where you can safely turn around or change direction.
While the TT-4 sign generally means a strict prohibition, exceptions can be indicated on supplementary plates. These might specify that the restriction does not apply to certain vehicle types (like bicycles or emergency vehicles), during specific hours, or for particular movements like turning right. Always look for these plates to understand any potential exceptions.
A common mistake is assuming that if other drivers ignore the sign, it's acceptable to do so as well. The TT-4 'No Entry' sign is a binding instruction, and you must obey it regardless of others' actions. Another trap is not reading supplementary plates, which can significantly alter the meaning or scope of the prohibition, leading to incorrect answers in exam questions.
A clear reference image of the TT-4 - No entry road sign used in Turkey.

The TT-4 - No entry road sign may also be known by these alternative names or terms.
The TT-4 - No entry road sign is part of the Turkey Prohibitory Signs category, which groups together signs with similar rules and functions.
Understanding the "No Entry" sign (TT-4) is vital. Reviewing it alongside other prohibitory signs helps solidify your knowledge for the ehliyet sınavı, enhancing sign recognition and theory test revision.

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TT-11: No Trailers Sign - Important Prohibitory Traffic Control

Understand the TT-12 'No Pedestrians' Prohibitory Sign

Understand the TT-13 'No Animal-Drawn Vehicles' Prohibitory Sign in Turkey

The TT-14 'No Handcarts' sign means handcarts are prohibited from this area.

The TT-15 'No Tractors' sign means tractors are prohibited from entering or proceeding.
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