What must drivers do when a moving emergency vehicle signals using lights and a siren?

When a moving emergency vehicle is signaling with lights and a siren, drivers are required to pull over to the right side of the road and come to a complete stop until the emergency vehicle has passed. This action is crucial for several reasons, primarily for the safety of both the emergency responders and the general public.

By moving to the right, drivers create a clear path for the emergency vehicle, allowing it to navigate through traffic quickly and efficiently, which is often necessary during critical situations. Stopping ensures that drivers do not inadvertently obstruct the route or cause an accident by merging back into traffic unexpectedly.

The other options do not align with the laws governing road safety. Speeding up to get out of the way could result in reckless driving and potential collisions. Continuing to drive at the same speed ignores the emergency vehicle's needs and could endanger motorists and responders alike. Ignoring the signals, even in heavy traffic, is also against the law and can lead to fines or other penalties. Therefore, the appropriate response is to pull over to the right and remain stopped until the emergency vehicle has passed.