DoD Allied Forces Italy (AFI) Driver's License Practice Exam

When you encounter a vehicle displaying a supplementary flashing blue light accompanied by alarm signals, the appropriate action is to pull to the right to clear the lane and stop if necessary. This signal typically indicates that an emergency vehicle, such as an ambulance or police car, is approaching and may need to pass through your area quickly. By moving to the right and stopping if it's safe to do so, you are allowing the emergency vehicle a clear path to navigate through traffic. This not only helps ensure the safety of the emergency responders but also facilitates a quicker response to potentially life-threatening situations.

Slowing down is important in many driving scenarios, but in this case, it is essential to actively clear the lane instead of merely reducing speed, as stopping can provide a safer option for both the emergency vehicle and other drivers. Maintaining speed is inappropriate when an emergency vehicle is present, as it could obstruct their path. Therefore, pulling to the right and stopping when needed is the most responsible and safe course of action in this situation.