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.
