I've ridden this - I now know why. The infrastructure required to elevate a hanging rail is immense. In Wuppertal they get away with it with large portions of t

I've ridden this - I now know why. The infrastructure required to elevate a hanging rail is immense. In Wuppertal they get away with it with large portions of the track hanging over the local river. Wuppertal doesn't seem to want to give their Schwebebahn up: they are replacing the existing cars soon.