Why is using both mirrors recommended while driving a bus?

Using both mirrors while driving a bus is essential because it provides a comprehensive view of the surrounding area, including critical blind spots. Buses are large vehicles with significant rear and side blind spots, which can create hazards for the driver, passengers, and other road users. By utilizing both mirrors, the driver can monitor traffic conditions more effectively, ensuring safety when changing lanes, making turns, or navigating through crowded areas.

This use of both mirrors enhances spatial awareness and helps prevent accidents by enabling the driver to identify potential dangers that may not be visible through the windshield alone. While using mirrors can assist with parking and potentially aid in decision-making, these functions are secondary to the primary goal of ensuring safety and awareness of an extensive area around the bus.