"The Roads Must Roll" is a 1940 science fiction short story by American writer Robert A. Heinlein. It was selected for The Science Fiction Hall of Fame, Volume One, 1929–1964 anthology in 1970.
"The Roads Must Roll" was originally published in the June 1940 issue of Astounding Science Fiction.
A moving walkway, also known as an autowalk, moving pavement, moving sidewalk, people-mover, travolator, or travelator, is a slow-moving conveyor mechanism that transports people across a horizontal or inclined plane over a short to medium distance. Moving walkways can be used by standing or walking on them. They are often installed in pairs, one for each direction.
Moving walkway inside the Changi Airport station of the Singapore MRT
Moving sidewalk, Exposition Universelle, Paris, 1900
View of the TRR walkway, with staff in yellow jackets monitoring
An inclined travelator at Sportivnaya station on the Saint Petersburg Metro, Russia