warning sign
Speed hump
Thai road sign ต.35 — Speed hump. Meaning: A speed hump or raised road section 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: ป้ายเตือนเนินกระโดด
Independent English reference · Source: Department of Highways · Sign ต.35
Road response
On the road
Driver action
What should you do?
Slow down before the hump and cross it smoothly while keeping the vehicle stable.
Exam-style scenario
Read the situation
A raised hump crosses the road beyond the sign as a motorcycle follows close behind you.
Best response: Brake smoothly before the hump, avoid a sudden stop in front of the motorcycle, and cross at low speed.
Sign comparison
Don’t confuse it
This sign
Speed hump
Compare with
Uneven road surface ahead
Key difference
A single rounded rise identifies one speed hump; the uneven-road symbol shows repeated changes in surface level.
Put sign knowledge into practice.
Answer exam-style questions about road signs, traffic lights, and lane markings in clear English.
