What must a driver do when an emergency vehicle (Police/PSR, fire engine, or ambulance) approaches using its audible siren and flashing blue/red beacons?

1. Immediately clear the way by pulling over to the right and stopping if necessary
2. Accelerate to stay ahead of the emergency vehicle and clear the road faster
3. Maintain normal speed and position because priority rules apply equally to all vehicles
4. Stop immediately in the middle of your lane without pulling over