What does the floor function area mean?

Hotel floors generally have three functional areas, one is the guest room area, which is the interior of all guest rooms; The second type is called traffic evacuation area, including corridor, elevator hall and floor stairs; The third type is called service area, including floor workshop, floor linen room, and some hotels also have floor service desk. In addition, some hotels also have floor activity areas, such as floor meeting rooms and floor recreation rooms.