What is the purpose of adjusting the outside left and right-side convex mirrors on a bus?

The purpose of adjusting the outside left and right-side convex mirrors on a bus is to see the entire area to the rear of the mirror along the side of the bus. Convex mirrors are designed to provide a wider field of view compared to flat mirrors. When properly adjusted, these mirrors allow the driver to observe not only the side of the bus but also the traffic in adjacent lanes, helping to improve visibility of pedestrians and other vehicles. This is crucial for safe maneuvering, particularly when changing lanes or making turns.

The adjustment of these mirrors is integral to minimizing blind spots, but it's important to note that they cannot completely eliminate all blind spots due to the vehicle's structure. Rather, they enhance the driver's awareness of the surrounding environment, which is why proper alignment is vital for maximizing safety and ensuring that the driver has a comprehensive view of the areas where hazards may be present.