A fire drill is a method of practicing how a building should evacuate in the event of a fire or other emergencies. In most cases, the building's existing fire alarm system is activated and the building is evacuated by means of the nearest available exits, as if an emergency had actually occurred. Fire drill procedures may vary depending on the building type, such as hospitals or high rise buildings, where occupants may be relocated within the building as opposed to evacuating the building. Generally, the evacuation interval is measured to ensure that it is fast enough, and problems with the emergency system or evacuation procedures are identified so that they may be remedied.
In addition to fire drills, most buildings have their fire alarm systems checked on a regular basis to ensure that the system is working. Fire alarm tests are often done outside normal business hours so as to minimize disruption of building functions; in schools, they are often done when students and staff are not around or during the holidays where specialist fire alarm engineers test alarms in the building for repair if needed.
