No tricycle
Tricycles are prohibited from entering or travelling on the road ahead. Drivers of tricycles must not proceed beyond this sign. Note that this restriction applies to the road section that follows, not a single point.
Verified as Thai road sign บ.19 from Thai Department of Land Transport sign series on 2026-05-15.
Study guide
Connect this sign to practice
No tricycle is one of the prohibition signs candidates lose marks on. Not because the symbol is unfamiliar, but because the question reframes the scenario. Practising it in the flow surfaces those reframings before test day.
Now see it in questions.
Spotting No tricycle 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.
