How should you merge onto a highway in the United States?

To merge onto a highway in the United States, first find a gap in highway traffic that you can enter. Traffic entering the freeway must yield to traffic already traveling on the freeway. Then adjust your speed to the speed of the freeway traffic so that you can safely merge into the gap without slowing down the traffic already in the lane. It is not unusual that the freeway traffic makes it easier for traffic to enter the freeway by changing lanes or slowing down. However, you shouldn’t expect this when entering the freeway.