Added lane ahead from the right
A traffic lane joins from the right ahead. Stay alert for vehicles entering the main carriageway.
Verified as Thai road sign ต.45 from Department of Rural Roads sign series on 2026-05-15.
Study guide
Connect this sign to practice
Added lane ahead from the right sits in a cluster of warning signs that look uncomfortably similar. The Thai exam exploits that overlap. Reviewing it next to its visual neighbours in the question flow keeps the differences sharp on test day.
Now see it in questions.
Spotting Added lane ahead from the right 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.
