When a siren is in operation on an emergency vehicle, you must?

When a siren is in operation on an emergency vehicle, the appropriate action is to pull over to the side of the road and stop clear of any intersections. This is crucial because it allows the emergency vehicle to pass through traffic safely and quickly, which is essential during emergencies where time can be critical. Stopping clear of the intersection also reduces the risk of collisions, as vehicles in the intersection may need room to maneuver or exit.

Additionally, yielding to emergency vehicles is not just a matter of courtesy—it is often mandated by law. Failing to stop properly can lead to impediments in emergency responses and can potentially result in fines or penalties for violating traffic laws.

Other choices, such as changing lanes swiftly or speeding up, can create more dangers on the road, both for the driver and emergency responders. Turning on headlights may be advisable in some scenarios but is not a necessary or specific response to an emergency vehicle’s siren. The primary focus should always be on safely yielding to the emergency vehicle.