What does "code 3" driving signify?

"Code 3" driving signifies the use of both lights and sirens during an emergency response. This designation is used by emergency responders, such as police, fire, and ambulance services, to alert other road users of their urgent presence and the need to clear the way. Utilizing lights and sirens helps ensure that the emergency vehicle can navigate through traffic more effectively and safely, expediting the response to emergencies like accidents, medical crises, or other urgent situations.

In this context, the correct answer underscores the importance of communication in emergency operations; the combination of visual (lights) and auditory (sirens) signals alerts drivers and pedestrians, reducing the risk of accidents during high-stakes responses.