How should a driver check blind spots when changing lanes?

When changing lanes, it is essential for drivers to be aware of their surroundings, especially the areas that are not visible in mirrors, known as blind spots. Looking over the right shoulder when changing into the right lane and over the left shoulder for a left lane change is the best practice. This physical check ensures that the driver has a clear view of any vehicles or obstacles that may not be detected through the mirrors.

This method complements the use of mirrors, as it provides a more comprehensive assessment of the area around the vehicle. Drivers often mistakenly rely solely on mirrors, which only provide limited visibility, especially for vehicles in adjacent lanes. By looking directly over the shoulder, the driver can confirm that the lane is clear and safe for the maneuver, reducing the risk of collisions.

Using mirrors exclusively or checking both mirrors at once does not adequately cover the blind spot areas, which can lead to dangerous situations when changing lanes. Thus, the recommended practice is to combine mirror checks with shoulder checks to enhance safety when entering a different lane.