When approaching a stationary authorized emergency vehicle that is using its visual signals, the operator of an approaching vehicle shall ______________.

When approaching a stationary authorized emergency vehicle that is displaying visual signals, the operator of a vehicle is required to vacate the lane closest to the emergency vehicle if another lane is available and the traffic conditions allow for it. This rule is designed to protect emergency responders as they attend to a situation on the roadway, ensuring that they have a safe working environment by reducing the risk of collisions.

This requirement emphasizes the responsibility of drivers to be vigilant and to take appropriate measures to avoid endangering those who are providing assistance. If a driver cannot vacate the lane due to the lack of an available lane or other traffic conditions, they must reduce their speed to ensure safety.

In situations where drivers might consider alternatives such as continuously sounding their horn or increasing speed to pass quickly, these actions would not align with safe driving practices and could create further hazards. Therefore, the correct response is to move away from the lane closest to the emergency vehicle whenever possible, promoting safety for all parties involved.