A yellow diamond sign showing two arrows pointing toward each other or a merging arrow warns of:

A yellow diamond warning sign showing a merge symbol — typically an arrow joining a straight line, or arrows coming together — warns that another lane or roadway will merge with yours ahead, or that two lanes will combine into one. Drivers should be alert, adjust speed, and be prepared to allow merging traffic to blend safely, using the 'zipper' approach when lanes combine. Merge warning signs are common near freeway on-ramps and where lanes end. Recognizing the merge warning and responding by checking for and accommodating merging traffic is part of warning-sign comprehension on the permit exam.