I have always included the egress corridors in my occupant load calculation, especially in a business occupancy. I am looking at a floor that has multiple uses (all Healthcare occupancy building) and am trying to determine the actual occupant load for the floor. The uses on the floor are: Assembly unconcentrated, business and mechanical. I have two egress corridors to provide exit access to remote egress stairs. The question is, do we include the exit access corridors as part of the floor occupant load and do I define the use of the corridors as business?