Escalators are moving staircases that transport people between floors using conveyor belts and tracks to keep steps horizontal. Jesse Reno built the first escalator in 1896 for an amusement park, while Charles Seeberger later redesigned and named the modern escalator. Escalators play a key role in transporting large numbers of people in places like shopping centers and transportation hubs. Their design considers physical requirements, traffic patterns, safety, aesthetics, and more. Escalators have components like steps, handrails, tracks, and platforms to smoothly move people up and down.