What is the purpose of the 'blind spot' check?

The primary purpose of the 'blind spot' check is to ensure that there are no vehicles or objects present in the driver's blind spot before changing lanes or merging. A blind spot is an area around your vehicle that is not visible through the mirrors, making it crucial to physically turn your head and look to confirm that the lane is clear. This check is essential for safe maneuvering, as failing to do so could lead to collisions with other vehicles or obstacles that you cannot see from your mirrors alone. This practice enhances awareness and contributes to overall road safety.

In contrast, ensuring the road is clear involves a broader check and may include what is seen in the mirrors and direct line of sight. Checking for approaching traffic is also part of general awareness but does not specifically address the unique risks associated with blind spots. Adjusting mirrors is important for visibility but does not replace the necessity of a direct blind spot check, as mirrors can still miss areas adjacent to the vehicle.