Road work ahead
Construction or maintenance work is ahead. The driver should slow down and be prepared to obey any temporary signs, signals, or flagger directions in the work zone.
Verified as Thai road sign ตค.1 from Department of Highways sign series on 2026-05-15.
Study guide
Connect this sign to practice
Most candidates can describe Road work 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 Road work 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.
