Minimum speedTurkey
Traffic rules
Turkey
1. Minimum speed
A minimum speed is the lowest speed that vehicles are required to maintain on a particular road or under specified conditions. Minimum-speed rules are intended to prevent vehicles travelling unnecessarily slowly from disrupting traffic or creating large speed differences between road users.
A minimum speed does not require drivers to maintain that speed when traffic, weather, visibility, road conditions or safety require them to slow down. The way minimum speeds are indicated and enforced varies between countries.
What minimum does Turkey’s highway authority specify for controlled-access roads?
The General Directorate of Highways specifies a compulsory minimum of 40 km/h on controlled-access roads. This must be read with the traffic rules and actual conditions; it is not a direction to maintain 40 km/h towards a stationary queue.
🔗 kgm.gov.tr • KGM — full national traffic-sign standards, meanings and placement
🔗 kgm.gov.tr • KGM — national sign chart, including shared and separate walking/cycling signs
What is Turkey’s official wording for a compulsory minimum-speed sign?
The official wording is Mecburi Asgari Hız. The sign requires the displayed minimum in km/h; its corresponding end sign ends that particular restriction. A minimum-speed sign differs from a maximum-speed limit.
🔗 kgm.gov.tr • KGM — full national traffic-sign standards, meanings and placement
🔗 kgm.gov.tr • KGM — national sign chart, including shared and separate walking/cycling signs
🔗 kgm.gov.tr • KGM — official 2025 sign-standard updates
Start of a minimum speed.
English • Traffic sign TT-41a • Compulsory minimum speed. The indicated minimum is 30 km/h; do not travel below it.
Türkçe • TT-41a • Mecburi asgari hız. Levhayla bildirilen asgari hız 30 km/sa'dir; bu değerin altında seyretmeyin.
Sources
🔗 Commons.wikimedia.org (Gigillo83 • CC BY-SA 4.0)
🔗 Kgm.gov.tr • KGM • Karayolu Trafik İşaretleme Standartları 1 • TT-41a<
SVG source: Gigillo83 • CC BY-SA 4.0 • Original revision 2021-10-15. Wikimedia original unmodified.
End of the minimum speed.
English • Traffic sign TT-41b • End of compulsory minimum speed. The previous 30 km/h requirement ends here.
Türkçe • TT-41b • Mecburi asgari hız sonu. Önceki levhayla getirilen 30 km/sa asgari hız zorunluluğu sona erer.
Sources
🔗 Commons.wikimedia.org (Gigillo83 • CC BY-SA 4.0)
🔗 Kgm.gov.tr • KGM • Karayolu Trafik İşaretleme Standartları 1 • TT-41b<
SVG source: Gigillo83 • CC BY-SA 4.0 • Original revision 2021-10-15. Wikimedia original unmodified.
Does a Turkish minimum-speed sign permit exceeding the maximum?
No. Minimum and maximum restrictions have different functions. Remain within the applicable maximum and slow when traffic or road safety requires it. The compulsory-minimum sign’s ending does not cancel the road’s maximum.
🔗 kgm.gov.tr • KGM — full national traffic-sign standards, meanings and placement
🔗 kgm.gov.tr • KGM — national sign chart, including shared and separate walking/cycling signs
