This sounds like some awesome tech, though the paranoid in me fears that in the off chance power goes off, what would keep these mag-lev cabins in place? Maybe

This sounds like some awesome tech, though the paranoid in me fears that in the off chance power goes off, what would keep these mag-lev cabins in place? Maybe someone can chime in on this thought experiment, but how would an architect design this into a new building to take advantage of its full potential? From what I can tell, it seems that the system would need multiple horizontal planes for the elevator to run through as well as 1+ vertical planes. And if this should be able to go horizontally across the floor, then you might still need multiple elevator wells on a floor. With this design, I fail to see how this would be more cost effective than the 40% use of a standard system (in the article, Ctrl-F "40 percent")