Which sign warns of traffic merging from the left ahead?

• A. Traffic merging from left ahead
• B. Plate below some signs
• C. Crossroads
• D. Roundabout

Answer: (A)

Hazard warning signs in the UK are triangular with a red border, signalling a potential danger ahead. A sign showing two streams of traffic merging into one from the left ahead is the indicator that vehicles from the left will join the road ahead. It tells you to be prepared to adjust speed and position, watch for vehicles moving into your lane, and yield if necessary to merging traffic. The plate beneath signs is just extra information and doesn’t itself warn of a merge. A crossroads sign warns of intersecting roads, not merging traffic, and a roundabout sign warns of a circular junction ahead. So the sign that depicts merging from the left ahead is the one that best conveys the specific upcoming hazard.