In Otis Elevator's Odyssey system, new cabs, called Transitors, can go
sideways as well as up and down. That means people won't have to
change from one bank of elevators to another, no matter how tall a
building is. The sidestep shuffle also ends the need
for long banks of elevators by enabling multiple cabs to operate in
one liftway. Building owners will like that, because elevators occupy
up to 20% of a building's space.
Finally, the horizontal jogs don't
have to be short -- they could stretch outside, to the parking garage
in a nearby building.
If you can't see the animations you need to download the Shockwave plug-in.