This merge sign tells you that two lanes of traffic going the same direction will soon merge into one lane. Be ready to either change lanes or allow other traffic to merge into your lane. You see this merge sign on expressways just before expressway ramps. The driver on the expressway slows down to let the driver on the ramp merge. You may find several of these signs on the outside of a sharp curve or on approaches to a narrow bridge.
Divided highways have a center strip that separates traffic going in opposite directions.
The first sign is posted before a divided highway begins. The second sign is posted just before the divided highway ends. Be careful as you near the end of a divided highway. Two-way traffic will begin again. This sign tells you that you are leaving a divided roadway and will be driving on a two-way highway.