Airport Traffic Patterns

As you respond to a emergency call from the Air Traffic Control Tower, you are told that the aircraft in question is on a two mile left base for the active runway. Do you know how much time that gives you to get your emergency vehicles in place, contact your mutual aids, and have your crew prepared for this situation?

The point I am getting at is, you should know your traffic patterns for your runways. Time is not always on your side.
Not only you, but your mutual aids should be familiar with the airfield. Some structural departments are the ARFF crew for a particular airport, others respond to the airport at the request of the ARFF department on the field. Everyone accessing the airfield in an emergency situation should be familiar with the layout and topography.

Part 139 ARFF crews have annual mandatory training, including Airport Familiarization. Invite your structural departments, take the time to show them around the airfield.