When changing lanes on a freeway, what must you do?

When changing lanes on a freeway, yielding to vehicles already occupying that lane is crucial for ensuring safety and maintaining traffic flow. This means that before merging into another lane, a driver must assess the space and position of nearby vehicles, ensuring that merging will not obstruct or endanger other drivers.

By yielding, a driver demonstrates responsibility by allowing those already in the lane to pass or maintain their speed, thereby avoiding potential collisions. Proper yielding ensures a smooth transition between lanes and contributes to a safer driving environment for everyone on the freeway.

In contrast, accelerating quickly into the lane could lead to dangerous situations, as it doesn't account for the presence of other vehicles. Only checking mirrors may not provide a comprehensive view of the traffic around you, particularly in blind spots, and signaling and changing immediately does not prioritize yielding to vehicles already in the lane, which is an essential part of safe lane changes.