Side road ahead on the left
A side road joins from the left ahead. Slow down and be alert for vehicles entering or leaving the main road.
Verified as Thai road sign ต.13 from Department of Rural Roads sign series on 2026-05-15.
Study guide
Connect this sign to practice
Most candidates can describe Side road ahead on the left. 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 Side road ahead on the left 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.
