Exits

An exit is an opening or passage that allows people to leave a space or building. Exits are designed to provide a safe and orderly egress from occupancies such as offices, schools, theaters, and transit facilities. They are distinct from entrances and are part of an overall means of egress designed to minimize risk during emergencies and reduce travel distance to safety.

Components of a building exit system typically include exit access (the path to an exit), the exit itself (a door or passage that leads to a discharge), and the exit discharge (the area outside or away from the occupancy). Exits may be doors, stairways, ramps, or corridors, and are often arranged to allow independent paths to safety. Hardware such as panic bars and fire doors may be used and must operate without keys.

Design and regulation: The number, width, placement, and travel distance of exits are governed by building codes and safety standards. Minimum widths, headroom, and door swing directions depend on occupancy and load. Exit signs, emergency lighting, fire-rated construction, and automatic power for lighting are commonly required. Clear egress routes must be kept unobstructed.

Maintenance and safety: Regular inspections, extinguishers, and drills help ensure exits function during emergencies. In non-emergency use, exits should remain accessible and unobstructed; signage should be visible, and lighting should be reliable.

Other contexts: In transportation and vehicles, exits include doors, hatchways, or emergency slides. In maritime and aviation settings, emergency exits are subject to additional standards and crew instructions.