What should you do before changing lanes on a highway?

Prior to changing lanes on a highway, it's crucial to signal your intention and ensure that it is safe to do so. This involves not only using your turn signal to inform other drivers of your plan but also paying careful attention to your surroundings. This means checking mirrors and blind spots to confirm there is enough space to safely execute the lane change without endangering yourself or others.

Taking the time to signal and ensuring safety before making a move helps maintain traffic flow and prevents accidents. Moving only when it is safe also implies being aware of the speed and positioning of vehicles around you, which is essential for safe driving on high-speed roadways. This comprehensive approach to lane changes is in line with the principles of defensive driving and contributes to overall road safety for everyone.

Other options may suggest quick turns or inadequate checks that can lead to dangerous situations or collisions. This thorough consideration underscores the importance of cautious and responsible driving behavior on the highway.