Why do your fire trucks use lights and sirens, even in the middle of the night when there is no traffic?

The purpose of emergency warning equipment is to let drivers and pedestrians know that an emergency vehicle is on the way to an emergency. By state law, we do have certain privileges extended to us. Some of those being; to proceed through controlled intersections without stopping or to travel against the designated flow of traffic. All of these privileges have rules that the state legislation and our department policies put on the drivers of these emergency vehicles. The main rule of safety is that all traffic is aware of us responding even in the middle of the night.