prohibition sign
Weight limit (10 tonnes)
Thai road sign บ.33 — Weight limit (10 tonnes). Meaning: Vehicles whose total weight exceeds 10 tonnes must not proceed beyond this sign. 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: ป้ายจำกัดน้ำหนัก
Independent English reference · Source: Department of Highways · Sign บ.33
Road response
On the road
Driver action
What should you do?
Do not proceed beyond the sign if the vehicle's total weight exceeds 10 tonnes.
Exam-style scenario
Read the situation
A loaded vehicle has a gross weight of 11 tonnes when it reaches this 10-tonne restriction.
Best response: Do not take the 11-tonne loaded vehicle beyond the 10-tonne restriction.
Sign comparison
Don’t confuse it
This sign
Weight limit (10 tonnes)
Compare with
Maximum weight 25 tonnes
Key difference
Both regulate total weight, but the displayed threshold here is 10 tonnes rather than the 25-tonne value on the companion sign.
Put sign knowledge into practice.
Answer exam-style questions about road signs, traffic lights, and lane markings in clear English.
