What should you do?
Watch for vehicles joining from the side shown, adjust speed and position to let traffic merge safely, and avoid changing lanes at the last moment.
How to recognise it
Yellow diamond with a straight black vertical line and a diagonal line joining it from the side.
Common confusion
Unlike the side road sign, the joining line meets at a shallow angle, showing traffic blending in rather than turning out of a junction.
Explanation written by the My Driving Test editorial team using the Department of Transport Traffic Signs Manual conventions and the RSA Rules of the Road.
