Stairway

They are in buildings and used for smaller vertical distances, and as physical exercise, and in the case of emergencies (some stairways, especially on the outside of a building, are only for emergencies, as fire-escape[?]). Stairways may be straight or round, or sometimes consisting of two straight pieces with a corner.

Sometimes there are stairs on a hiking path, avoiding more difficult climbing and also the detour that vehicles have to take.

Stairways are also used to enter and leave some vehicles. They may be a separate object or part of the vehicle, either fixed or foldable/retractable. There are also stairways in double-decker vehicles, and small ones in vehicles with a floor that is not everywhere at the same level.

Stairs are not suitable for wheelchairs and other vehicles.

Special stairways are an escalator and a ladder.

Alternatives are an elevator and an inclined moving sidewalk.

See also Stairway To Heaven.