Glossary Term Defined

Unenclosed pedestrian circulation providing the minimum path for access to tenant suites, egress stairs, elevators, refuge areas, toilets, and building entrances, and required by local building code to meet egress requirements, only when there are no fully enclosed pedestrian corridors serving a floor or portion (such as a wing) thereof. 

Unenclosed pedestrian circulation that functions as a multi-occupant corridor, only when there are no pedestrian corridors within the exterior enclosure that provide access to and egress from occupant suites on a floor level or portion (such as a wing) thereof.