When is it most critical to check the mirrors while driving?

Checking the mirrors before changing lanes or merging is critical for several reasons. This action ensures that the driver is aware of their surroundings, specifically the position and speed of other vehicles. It helps in identifying any vehicles in the blind spots that may not be visible through direct line of sight. This precaution significantly reduces the risk of collisions, as it allows for safer maneuvers and aids in ensuring compliance with traffic rules.

During lane changes or merging, the dynamics of traffic can change quickly, and being aware of adjacent vehicles is essential for making informed decisions. Therefore, consistently checking mirrors in preparation for these actions helps maintain safety on the road by promoting a greater sense of awareness and preventing accidents.