Side road merging from right ahead
A side road joins your road from the right ahead. Be prepared for vehicles entering your lane from the right and watch for traffic that may merge without yielding. Adjust speed and position as needed.
Verified as Thai road sign ต.47 from Thai Department of Land Transport sign series on 2026-05-15.
Study guide
Connect this sign to practice
Warning signs like Side road merging from right 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 Side road merging from right 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.
