Lane Narrowing Ahead Road Sign - Meaning and Safety Tips #3724682 (License: Personal Use)

This is a standard UK triangular warning road sign with a red border and white background, featuring two black vertical lines-one straight (left lane) and one angled inward (right lane merging). It signals that the road ahead narrows due to the right lane ending, requiring drivers to adjust position or yield. The sign is typically placed 150-300 meters before the narrowing point on dual carriageways or multi-lane roads.

Used on highways and major roads in the UK and other countries following Vienna Convention signage standards; appears where lane reduction occurs due to construction, road design, or temporary closures. Matches user intent for understanding road signs, preparing for driving tests, or improving road safety awareness.