What does the term "blind spot" refer to?

The term "blind spot" specifically refers to areas around a vehicle that are not visible in the mirrors, which can create a risk when changing lanes or merging. These blind spots typically exist to the sides and rear of the vehicle where the driver’s line of sight is obstructed. Because these areas are not monitored by either the rearview or side mirrors, drivers must be especially cautious and often physically turn their heads to check for other vehicles or obstacles before making maneuvers. Understanding the concept of blind spots is crucial for safe driving practices, as it highlights the importance of thorough checking before proceeding in traffic.