The space within a building assigned to the movement of people, goods and/or vehicles, and from which access is gained to other functional rooms or spaces.
Can be categorized into the following levels:
1. Primary Circulation Space consists of those parts of the floor or building such as aisles, walkways, entrances, exits, foyers and space required for access to stairs, lifts, toilets or conference rooms.
2. Secondary Circulation Space is the area of a building required for access to some subdivision of space (open or enclosed) that does not serve all occupants on a floor.