Final answer:
When approaching a stopped emergency or road assistance vehicle with flashing lights on a highway, drivers must slow down and proceed with caution, and if possible, change lanes away from the stopped vehicle.
Step-by-step explanation:
A driver in a vehicle on a multi-lane controlled access highway approaching a stopped emergency or road assistance vehicle with flashing lights must slow down and proceed with caution. It is important for the safety of emergency responders and other motorists that drivers be alert and prepared to react accordingly. If it is safe to do so, many jurisdictions have laws known as Move Over Laws which require vehicles to change lanes away from the emergency or road assistance vehicle as a precaution. This helps create a safer space for responders to operate. Reducing speed and being vigilant can prevent accidents and ensure everyone's safety. Always pay attention to specific laws in your area, as they may detail additional actions that drivers should take under such circumstances.