Carriageway shifts right ahead
The driving lane shifts to the right ahead, often where the road realigns around an obstacle, bridge, or construction zone. Reduce speed, follow lane markings carefully, and keep your vehicle within the shifted lane path.
Verified as Thai road sign ต.43 from Thai Department of Land Transport sign series on 2026-05-15.
Study guide
Connect this sign to practice
Most candidates can describe Carriageway shifts right 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 Carriageway shifts 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.
