prohibition sign
No trucks
Thai road sign บ.15 — No trucks. Meaning: Trucks are prohibited from entering or travelling on the road ahead. 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: ป้ายห้ามรถบรรทุก
Independent English reference · Source: Department of Highways · Sign บ.15
Road response
On the road
Driver action
What should you do?
Trucks are prohibited from entering or travelling on the road ahead. Drivers of trucks must not pass this sign and should seek an alternative route.
Exam-style scenario
Read the situation
A delivery truck reaches a signed road entrance while the planned customer lies beyond it.
Best response: Keep the delivery truck out of the signed road and use an alternative approach to the customer.
Sign comparison
Don’t confuse it
This sign
No trucks
Compare with
No trailers
Key difference
The truck silhouette excludes trucks whether or not they tow; the trailer sign applies to a vehicle because it is towing a trailer or semi-trailer.
Put sign knowledge into practice.
Answer exam-style questions about road signs, traffic lights, and lane markings in clear English.
