Mechanical Transportation – Escalators & Other travelators
An escalator is a conveyor transport device for transporting people, consisting of a staircase whose steps move up or down on tracks that keep the surfaces of the individual steps horizontal.
The word escalator was coined by combining the Latin word for steps— “scala”—with the word “elevator.”
An escalator is a conveyor transport device for transporting people, consisting of a staircase whose steps move up or down on tracks that keep the surfaces of the individual steps horizontal.
Where large numbers of people are anticipated, such as airports and railway terminals, department stores and shopping malls, several escalators will be required and can be grouped in a number of ways to suit the building functions
The escalators operate at a constant speed. They serve only two levels and have a known maximum capacity, which is in the range of 3200 to 6400 persons per hour depending on the width of the escalators. Escalators are reversible in direction. They are generally operated at a speed of not more than 38m/minute
The angle of inclination is normally 30o but may increase to 35o if the vertical rise does not exceed 6 m and the speed is limited to 0.5 ms-1
PARALLEL ESCALATORS:
Parallel up and down escalators “side by side or separated by a distance”, seen often in metro stations and multilevel motion picture theaters.
CRISSCROSS ESCALATORS
Crisscross minimizes structural space requirements by “stacking” escalators that go in one direction, frequently used in department stores or shopping centers.
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