If an unruly passenger causes a disturbance, attempts to grab the steering wheel, or assaults the driver while the bus is in motion, what is the driver's standard emergency operating protocol?

1. Keep calm, immediately release the throttle, safely brake and bring the bus to a complete stop at the roadside, apply the parking brake, activate hazard flashers, and call the police (110) immediately
2. Continue driving at high speed while wrestling physically with the passenger
3. Accelerate to the destination station without stopping
4. Encourage other passengers to throw the unruly individual out of the moving bus window