Safe Driving Practices for Passenger Vehicles
What this domain tests
This domain tests passenger-vehicle handling: speed choice, following distance, clearance, smooth control, and management of fatigue and distraction with passengers aboard. The exam wants bus-specific judgment, not car-driving habits.
Core rules
- Use the CDL following-distance rule: one second for each 10 feet of vehicle length below 40 mph, plus one second above 40 mph. A 40-foot bus needs about 4 seconds below 40 mph and 5 seconds above; add more in rain, snow, or darkness.
- Brake and accelerate smoothly. Passengers who are standing or walking in the aisle can fall. Look far ahead and brake early.
- Check clearance before turns, lane changes, and low underpasses. Swing wide enough for the rear wheels, but do not cross into opposing traffic. Use mirrors continuously.
- Back only when necessary. Use a spotter, get out and check, or use a backup camera; if you cannot see, do not back.
- Control speed on curves and downgrades. Select a lower gear before a long descent; do not ride the brakes.
- Manage fatigue and distraction. Passengers, radios, and phone calls are not excuses for divided attention.
Worked example
A 40-foot bus is traveling 45 mph on wet pavement. The driver leaves 3 seconds. Correct reasoning: at 45 mph the minimum is 5 seconds, and wet pavement requires more. The driver should increase the gap, reduce speed, and avoid sudden steering.
Traps that cost marks
Using a 2-second car gap. Trusting a backup camera without a spotter. Braking late because the bus “has air brakes.” Cutting a turn and clipping the curb. Letting conversation pull your eyes off the road.