What it looks like
A yellow diamond warning sign with a black symbol showing two lanes narrowing into one to indicate that a lane ends ahead.
When you'll see it
You meet it where the number of lanes is reduced, such as after construction zones or where a highway narrows.
What to do
Merge safely into the continuing lane before the lane ends, adjusting your speed to blend with traffic.
Source: Manual on Uniform Traffic Control Devices (MUTCD), 11th Edition — FHWA.
