Why should a bus driver be especially careful about braking smoothly?

SMOOTH BRAKING FOR PASSENGER SAFETY: Because a bus carries people (often standing, moving in the aisle, elderly, or children), braking technique directly affects their safety: HARD BRAKING can throw standing passengers forward, cause falls, and injure people moving in the aisle; passengers may not be braced for a sudden stop; SMOOTH, GRADUAL braking protects passengers from being thrown and provides a comfortable ride; ANTICIPATION: Look ahead, anticipate stops, and brake early and gently; DEFENSIVE DRIVING: Maintain space to allow smooth stops; avoid situations requiring hard braking; PASSENGER AWARENESS: Some passengers stand, walk to exits, or are vulnerable (elderly, disabled, children); the driver must drive in a way that keeps them safe; ACCELERATION/TURNING: Similarly, smooth acceleration and gentle turns protect passengers; the bus driver's responsibility extends beyond the vehicle to the people aboard — their safety and comfort depend on smooth, controlled operation; this passenger-focused driving (smooth braking, acceleration, turning, anticipation) is a defining aspect of safe passenger vehicle operation and is emphasized on the endorsement.