When merging before the lane ends, the vehicle in the lane that is ending must give way to the vehicles in the continuing lane. In other words, the driver in the lane that is about to end should yield to the traffic already in the lane they are merging into. This requires slowing down and waiting for a safe gap before merging, with appropriate signaling prior to the maneuver. The continuing lane has the right of way in this situation, and the merging driver must merge safely without forcing their way in.