As a driver, encountering the TT-28 sign means you must not overtake if you are driving a heavy vehicle. This is a prohibitory traffic sign, indicating a restriction that is binding from the point of the sign onwards, unless a supplementary plate or another sign indicates otherwise. Always check for additional plates that might specify vehicle types, distances, or times. Learn this sign well for safe driving and your Turkish driving licence theory test.
This prohibitory sign (TT-28) dictates that heavy vehicles must not overtake, a crucial rule for ensuring traffic flow and safety in Türkiye. Mastering this road sign meaning is vital for your ehliyet sınavı preparation and understanding Turkish traffic laws.
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-28.
"No overtaking for heavy vehicles" 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-28 - No overtaking for heavy vehicles 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-28 sign explicitly prohibits overtaking manoeuvres for drivers of heavy vehicles. This means you cannot pass another vehicle if you are operating a heavy vehicle in the zone indicated by this sign. Always check supplementary plates for further restrictions or clarifications.
The restriction imposed by the TT-28 sign remains in effect until you encounter an 'End of Restriction' sign or another traffic sign that explicitly lifts the prohibition. Do not assume the restriction ends automatically after a certain distance or time unless indicated.
The primary exception would be if a supplementary plate attached to the TT-28 sign specifies certain conditions or vehicle types that are exempt. Without any such plate, the prohibition applies strictly to all heavy vehicles. Never assume an exemption applies if it's not clearly stated.
A common mistake is assuming that because another driver is ignoring the sign, it's permissible to do so as well. Or, learners might not check supplementary plates, leading to misinterpreting the scope or duration of the restriction. Always obey signs like TT-28 as they are binding traffic controls.
No, the TT-28 sign specifically targets heavy vehicles. Drivers of passenger cars or lighter vehicles may still be permitted to overtake, provided it is safe and otherwise legal. The key is to identify if your vehicle falls under the 'heavy vehicle' category as defined by Turkish traffic regulations.
A clear reference image of the TT-28 - No overtaking for heavy vehicles road sign used in Turkey.

The TT-28 - No overtaking for heavy vehicles road sign may also be known by these alternative names or terms.
The TT-28 - No overtaking for heavy vehicles road sign is part of the Turkey Prohibitory Signs category, which groups together signs with similar rules and functions.
Comparing 'No overtaking for heavy vehicles' with similar prohibitory signs helps you master distinctions and improve sign recognition for your theory test revision. This focused review strengthens your understanding of specific traffic rules and ensures fewer mistakes on exam day.

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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