What type of mirror is required on cab-over or forward-control type school buses?

The correct answer is that a convex mirror is required to view the roadway in front of cab-over or forward-control type school buses. Convex mirrors are specifically designed to provide a wider field of vision compared to standard mirrors. This is particularly important for vehicles like school buses, which have a unique design that may obstruct the driver's direct line of sight.

Using a convex mirror allows the driver to see more of the area in front of the bus, including pedestrians or other vehicles that may be in close proximity. This enhanced visibility is crucial for safety, especially when making turns or navigating through tight spaces where blind spots can pose a risk.

In contrast, a backup mirror is focused on viewing traffic behind, which does not address the need for visibility in front of the bus. A standard side mirror may not provide the necessary wide-angle view to cover the specific limitations of cab-over or forward-control designs. The fish-eye mirror, while it offers a wide-angle perspective, is typically used for sighting passengers or areas not directly related to the driver's operational view of the roadway. Thus, the convex mirror is the most appropriate choice for ensuring the driver's safety and awareness of the vehicle's front surroundings.