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Escalator. For the album by Sam Gopal, see Escalator (album). An escalator is a moving staircase which carries people between floors of a building or structure. It consists of a motor -driven chain of individually linked steps on a track which cycle on a pair of tracks which keep the step tread horizontal.
Escalator etiquette is the etiquette of using escalators. In many places, there is a convention that people should stand on a particular side to allow other people to walk on the other side. [2] Standing on the right is the most common convention, following early escalator design in London. [1] In the 21st century, there have been campaigns for ...
The Central–Mid-Levels escalator and walkway system in Hong Kong is the longest outdoor covered escalator system in the world. The system covers over 800 m (2,600 ft) in distance and traverses an elevation of over 135 m (443 ft) from bottom to top. It opened in 1993 to provide an improved link between Central and the Mid-Levels on Hong Kong ...
Mucociliary clearance (MCC), mucociliary transport, or the mucociliary escalator describes the self-clearing mechanism of the airways in the respiratory system. [1] It is one of the two protective processes for the lungs in removing inhaled particles including pathogens before they can reach the delicate tissue of the lungs.
Three parallel escalators; the direction of the middle escalator can be changed to double capacity in one direction (↑↑↓ or ↑↓↓). Many public transport systems handle a high directional flow of passengers— often traveling to work in a city in the morning rush hour and away from the said city in the late afternoon. To increase the ...
Stairs may change direction, commonly by two straight flights connected at a 90° angle landing. Stairs may also return onto themselves with 180° angle landings at each end of straight flights forming a vertical stairway commonly used in multistory and highrise buildings.
34th Street–Hudson Yards station. The 34th Street–Hudson Yards station is a New York City Subway station in Manhattan 's West Side on the IRT Flushing Line, and is the western (railroad south) terminus for the 7 local and <7> express services. It has two tracks and one island platform, with two levels of mezzanines: one directly above the ...
An inclined elevator consists of one or two inclined tracks on a slope with a single car on each carrying payload. In the case of a two-track configuration each car operates in a shuttle principle: it moves up and down on its own track independently of the other car. A car is either winched up to the station on the top of the incline where the ...