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Turn prohibitionBrazil

An introduction to the traffic rules and road signs of Brazil. Learn about driving, road safety and much more in our illustrated book, with answers to frequently asked questions.

For informational purposes only. Always follow official regulations. Some content and images were created with AI assistance.

Traffic signs
Traffic rules
Brazil

9. Turn prohibition

A turn prohibition prevents drivers from turning in the direction indicated by a traffic sign. It may prohibit a left turn, a right turn or a U-turn at an intersection or along a specified section of road.

Drivers must continue along a permitted route and follow any lane arrows or mandatory-direction signs. A turn prohibition does not itself determine priority or speed, and any exemption for cyclists, public transport or other road users must be expressly indicated.

Turn prohibition
Turn-prohibition sign near a bus stop. (Fortaleza, Brazil)
Wikimedia.org • Paul R. Burley • CC BY-SA
What does a no-turn sign prohibit in Brazil?

It prohibits the left, right or other turn shown at the junction or position controlled by the sign in Brazil. Follow any supplementary panel or authorised direction and choose another legal route.

🔗 gov.br • CONTRAN national sign manual Volume I — relevant regulatory signs, scope and supplementary conditions; later amendments separately checked

🔗 planalto.gov.br • Brazilian Traffic Code — 35–39, 89 and 206; R-4a/b distinct from R-5a/b

Does a no-left-turn sign always prohibit a U-turn in Brazil?

No. Brazil’s national manual expressly states that the no-left-turn sign does not itself prohibit a U-turn. A separate no-U-turn sign is needed to prohibit that movement by signing. The Traffic Code’s other U-turn prohibitions and safety requirements still apply.

🔗 gov.br • CONTRAN national sign manual Volume I — relevant regulatory signs, scope and supplementary conditions; later amendments separately checked

🔗 planalto.gov.br • Brazilian Traffic Code — 35–39, 89 and 206; R-4a/b distinct from R-5a/b

Can a no-turn restriction apply only to certain vehicles or hours in Brazil?

Yes, where the local sign system provides a supplementary condition or exemption, such as a vehicle class, time or authorised access. Without a valid exception, comply with the prohibited movement shown.

🔗 gov.br • CONTRAN national sign manual Volume I — relevant regulatory signs, scope and supplementary conditions; later amendments separately checked

🔗 planalto.gov.br • Brazilian Traffic Code — 35–39, 89 and 206; R-4a/b distinct from R-5a/b

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