No right turn or U-turn
Drivers must not turn right or make a U-turn at this location. Both manoeuvres are prohibited from the point where the sign is posted. Note that many foreigners overlook the U-turn restriction when focusing on the right-turn arrow.
Verified as Thai road sign บ.12 from Thai Department of Land Transport sign series on 2026-05-15.
Study guide
Connect this sign to practice
Prohibition signs like No right turn or U-turn carry instant fines on the road and trick wording on the exam. Questions test where the rule starts, where it ends, and which adjacent signs cancel it. Practising it in the question flow keeps those edges fresh.
Now see it in questions.
Spotting No right turn or U-turn in isolation is one thing. Recognising it inside a real exam-style question, among lookalikes and trick wording, is another. The diagnostic mixes it in for you.
