Lanes converge

What it means

To guide drivers by means of a diagram, which indicates that, a curved multi-lane carriageway converges with a straight multi-lane carriageway from the left or right, without a decrease in lanes

What you must do

Whenever a lane ends, converges, merges or is added, make sure in time that there is a big enough gap in the traffic to merge with the traffic. Also yield to other traffic, which might merge.

Source: Signs manual GS451, GS454