What action must you take when an ambulance approaches from behind while you are on a one-way street?

When an ambulance approaches from behind while you are on a one-way street, the appropriate action is to pull to the nearest curb and stop. This action is crucial because it provides a clear path for the emergency vehicle to pass through without obstacles. Emergency vehicles, including ambulances, are responding to urgent situations, and any delay in their response can have serious consequences.

By pulling over and stopping, you not only comply with traffic laws that prioritize emergency vehicles but also contribute to the safety of those in need of immediate assistance. Making room for the ambulance is essential, as it allows them to navigate through traffic quickly and effectively.

Other options, such as speeding up or making a U-turn, could actually create additional hazards. Speeding up can lead to reckless driving and not ensuring the proper way is clear for the ambulance. Making a U-turn in this scenario could confuse other drivers and potentially create a dangerous situation. Continuing at your current speed does not account for the presence of the emergency vehicle and can impede its progress. Therefore, stopping and pulling to the curb is the safest and most responsible action to take.