Vehicle Control and Safe Driving Practices
This domain tests whether you drive a bus like a bus. A 40-foot vehicle carrying 40 people does not stop, turn, or track like a car, and the exam looks for the specific habits that compensate.
Core rules
- Stopping distance grows with weight and speed, and air brakes add lag between pedal and response. Brake early and progressively.
- Off-tracking: the rear wheels cut inside the front wheels on a turn. Swing wider than you think and watch the rear in the mirror.
- Tail swing: the rear corner swings outward opposite the turn. Check the mirror before pulling away from a curb or fuel island.
- Following distance: one second per 10 feet of vehicle length below 40 mph, plus one second above 40 mph. A 40-foot bus needs at least 4 seconds around town and 5 or more on the highway.
- Smooth is safe: no sudden lane changes or hard braking with standees aboard.
- Use mirrors and head checks; know your blind spots and overhead clearance.
- Massachusetts law bars handheld phone use while driving, including at red lights.
- Back only with a spotter or after walking the area; get out and look if unsure.
Worked example
A 40-foot bus at 55 mph on the Turnpike: 4 seconds base plus 1 second for highway speed gives 5 to 6 seconds of following distance, roughly a quarter mile. That gap absorbs the brake lag that a car driver would not expect.
Traps that cost marks
Driving a bus with car-sized gaps; forgetting tail swing at a curb; braking hard with standing passengers; assuming the rear wheels follow the front.