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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.
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 ...
Moving walkway inside the Changi Airport station of the Singapore MRT. A moving walkway, also known as an autowalk, [1] moving pavement, [2] moving sidewalk, [3] people-mover, travolator, [4] or travelator (British English), [5] is a slow-moving conveyor mechanism that transports people across a horizontal or inclined plane over a short to medium distance. [6]
A parabolic curve (POB) is used. A transition curve (also, spiral easement or, simply, spiral) is a spiral-shaped length of highway or railroad track that is used between sections having different profiles and radii, such as between straightaways (tangents) and curves, or between two different curves. [1] Comparison of a poorly designed road ...
A diagram showing the measurements that can be taken from a staircase A quite unusual "variable rise" stairway, which also distorts visual perspective (at The Duomo in Urbino, Italy) The dimensions of a stair, in particular the rise height and going of the steps, should remain the same along the stairs.
Stair lift. A stair lift is a mechanical device for lifting people, typically those with disabilities, up and down stairs. [1] For sufficiently wide stairs, a rail is mounted to the treads of the stairs. A chair or lifting platform is attached to the rail. A person gets onto the chair or platform and is lifted up or down the stairs by the chair ...
The safety of a horizontal curve is affected by the length of the curve, the curve radius, whether spiral transition curves are used, and the superelevation of the roadway. For a given curve deflection, crashes are more likely on curves with a smaller radius. Spiral transitions decrease crashes, and insufficient superelevation increases crashes.
A conveyor belt is the carrying medium of a belt conveyor system (often shortened to belt conveyor). A belt conveyor system is one of many types of conveyor systems. A belt conveyor system consists of two or more pulleys (sometimes referred to as drums), with a closed loop of carrying medium—the conveyor belt—that rotates about them.