peoplemover

As a space-saving and universally-accessible alternative over stairs, underpasses and elevators to ford an obstacle, usually train-tracks, the system invented by engineer Emil Schmid first transports passengers up vertically, sideways and then down again in one fluid motion. A couple of these engineering marvels (see also) remain in operation at Bahnhöfen in Altbach, near Stuttgart, and in the Rummelsburg district in Berlin. More at Miss Cellania at the link above.