What is a primary safety concern for drivers when adjusting mirrors?

The focus when adjusting mirrors on a bus primarily revolves around minimizing blind spots. Properly adjusted mirrors enable the driver to have a clear view of the surroundings, which is essential for ensuring the safety of both the passengers and pedestrians. Reducing blind spots helps the driver to make informed decisions when changing lanes, merging, and navigating through tight spaces, where unseen objects or individuals could pose a risk.

Good visibility of the bus body is also important, but the main emphasis is ensuring that all areas where obstacles could be present are visible to the driver. While checking for obstacles and seeing the rear tires may contribute to overall vehicle awareness, the primary safety concern in this context is specifically about blind spot elimination. This practice is vital in a school bus setting, where the safety of children is paramount.