prohibition sign
No right turn
Thai road sign บ.9 — No right turn. Meaning: Turning right is prohibited at this intersection or for the road segment that follows. Learner-manual coverage: this identity is shown in the current DLT car-driver learner manual. Inclusion does not mean it appears in every theory test.
Thai name: ป้ายห้ามเลี้ยวขวา
Independent English reference · Source: Department of Highways · Sign บ.9
Road response
On the road
Driver action
What should you do?
Turning right is prohibited at this intersection or for the road segment that follows. The driver must continue straight or take a permitted alternative direction.
Exam-style scenario
Read the situation
You approach a junction intending to turn right while this sign is visible above your lane.
Best response: Do not take the right branch from this lane; continue in a direction the junction permits.
Sign comparison
Don’t confuse it
This sign
No right turn
Compare with
No left turn
Key difference
Its crossed arrow points right and bans a right turn; the matching sign with a left-pointing arrow bans the opposite turn.
Put sign knowledge into practice.
Answer exam-style questions about road signs, traffic lights, and lane markings in clear English.
