warning sign
Steep descent ahead
Thai road sign ต.34 — Steep descent ahead. Meaning: A steep downhill section lies 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: ป้ายเตือนทางลาดชัน
Independent English reference · Source: Department of Highways · Sign ต.34
Road response
On the road
Driver action
What should you do?
Reduce speed and select a lower gear before beginning the steep descent.
Exam-style scenario
Read the situation
A long downhill section begins beyond the crest while you are still travelling in a high gear.
Best response: Slow before the crest and select a lower gear before committing to the long descent.
Sign comparison
Don’t confuse it
This sign
Steep descent ahead
Compare with
Steep climb ahead
Key difference
The slope falls in the travel direction and warns of a descent; the mirrored grade rises for a climb.
Put sign knowledge into practice.
Answer exam-style questions about road signs, traffic lights, and lane markings in clear English.
