Approximately how many feet should a school bus driver be able to monitor in front of the bus using the crossview mirrors?

CROSSVIEW (CONVEX) MIRRORS: Mounted on the front corners/fenders of the school bus, angled to show the driver the area DIRECTLY IN FRONT of the bus and along the sides — the danger zone where small children may be below the driver's direct line of sight over the hood. PURPOSE: A child standing close to the front bumper or crossing just ahead can be invisible looking straight ahead (below the windshield/hood line); the crossview mirrors let the driver see this critical danger zone; USE: Check crossview mirrors before pulling away from a stop to ensure no child is in front of or beside the bus; they show the front bumper area and the right/left front danger zones; LIMITATIONS: Convex mirrors distort distance (objects appear farther/smaller) — the driver must account for this; combined with flat mirrors and direct vision, they give a fuller picture; INSPECTION: Verify crossview mirrors are present, clean, and properly adjusted in the pre-trip; these mirrors are a defining school bus safety feature specifically designed to reveal children in the front danger zone; using them before moving is essential to avoid striking a child who is invisible from the normal seated sightline.