Final answer:
When approaching a stationary emergency vehicle with flashing lights on a multi-lane highway, you should move to a non-adjacent lane and slow down to a safe speed, doing both actions only if it is safe.
Step-by-step explanation:
If you are driving on a highway with at least four lanes and you approach a stationary emergency vehicle or public safety vehicle on the roadside with lights flashing, you should do both of the following:
- Move into a lane that is not adjacent to the stationary vehicle if it is possible to do so safely.
- Slow down to a speed that required by existing conditions and as indicated by signs or law.
These actions are necessary to ensure the safety of emergency responders and to comply with laws commonly known as "move over laws". Always be aware of your surroundings and traffic laws to react appropriately in the presence of emergency vehicles.