Arizona Practice Permit Test 5
THIS SIGN MEANS:
MERGING TRAFFIC. Traffic may be merging into your lane from another roadway. Be ready to either changes lanes or allow other traffic to merge into your lane. Merge signs appear on expressways just before expressway ramps. Drivers entering from the right must yield to traffic on the main route, and must make use of speed-change lanes to merge smoothly and safely with the main traffic flow.