Jesse Reno installed an inclined moving 'stairway' as a ride at Coney Island in 1896, and Charles Seeberger's flat-step design, branded the Escalator, was shown at the 1900 Paris Exposition. The moving staircase let large crowds flow continuously between levels without waiting for lifts. It transformed the department store, the metro station and later the shopping mall, making upper floors and deep platforms commercially and operationally viable. Escalators became essential to high-volume vertical circulation.
The escalator made continuous mass movement between levels possible, unlocking multi-storey retail and deep transit stations.
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