Steep descent ahead
A steep downhill section lies ahead. Reduce speed before the descent begins and use a lower gear to maintain control; relying on brakes alone on a long slope can cause them to overheat.
Verified as Thai road sign ต.34 from Thai Department of Land Transport sign series on 2026-05-15.
Study guide
Connect this sign to practice
Warning signs like Steep descent ahead test whether you spot the hazard early enough to react. The Thai theory exam often pairs them with stopping-distance, visibility, and right-of-way questions, so practising the symbol alongside its scenarios makes the wording less of a trap.
Now see it in questions.
Spotting Steep descent ahead in isolation is one thing. Recognising it inside a real exam-style question, among lookalikes and trick wording, is another. The diagnostic mixes it in for you.
