people mover — any of various forms of mass transit, as moving sidewalks or automated driverless vehicles, used for transporting people along limited, fixed routes, as around airports or congested urban areas.
moving staircase — Also called moving staircase, moving stairway. a continuously moving stairway on an endless loop for carrying passengers up or down.
staircase — a flight of stairs with its framework, banisters, etc., or a series of such flights.