Uneven road surface ahead
The road surface ahead is uneven or rough. Drivers should reduce speed, keep a firm grip on the steering wheel, and watch for sudden changes in road level.
Verified as Thai road sign ต.36 from Department of Rural Roads sign series on 2026-05-15.
Study guide
Connect this sign to practice
Most candidates can describe Uneven road surface ahead. The Thai exam tests whether you can pick it out of a roadside scene under time pressure and choose the right response. Practising it inside the question flow is what closes that gap.
Now see it in questions.
Spotting Uneven road surface 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.
