warning sign
Height restriction ahead (2.5 metres)
Thai road sign ต.32 — Height restriction ahead (2.5 metres). Meaning: Gives advance warning that a 2.5-metre height restriction is 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: ป้ายเตือนความสูง
Independent English reference · Source: Department of Highways · Sign ต.32
Road response
On the road
Driver action
What should you do?
Check the vehicle's full height, including any roof load, and leave the route before the upcoming 2.5-metre restriction if necessary.
Exam-style scenario
Read the situation
A van with roof equipment approaches advance warning of a 2.5-metre clearance farther along the route.
Best response: Check the van's total height with its roof equipment and turn off before the low-clearance point if it exceeds 2.5 metres.
Sign comparison
Don’t confuse it
This sign
Height restriction ahead (2.5 metres)
Compare with
Height limit (2.5 metres)
Key difference
The yellow warning gives advance notice of low clearance; the red-ring height sign is the actual 2.5-metre restriction point.
Put sign knowledge into practice.
Answer exam-style questions about road signs, traffic lights, and lane markings in clear English.
