Swing Low City Chariot

This transport would function like trapeze artists in a long circus tent, moving from platform to platform with one trapeze after the other. The passengers would probably travel, strapped down, in a cigar-shaped cabin the size of a small bus that would swing on two cables anchored on buildings or towers on each side.

The cables would angle outwards from the cabin for stability, and as the cabin leaves each platform, it would get a push with compressed air (alternatively torque at the cable anchor points) so that it would swing up to the same height at the next platform. The stay at the next platform would be only momentary to preserve forward momentum, as the next cable pair connects and the pair behind is released. When released, the used cable pair swings back to wait for connection to the next cabin.

More like Tarzan swinging through the jungle than Spiderman, the occupants would loop above the street and, with a platform over an intersection, could even turn corners. Cabins traveling the opposite direction would travel above, on their own cables.