Re: Congestion is about work not transport
Cable cars - have the problem that the wheels are clamped around the cable, making track switching difficult or impossible.
If instead you create a micro monorail and drive the hanging gondolas along on wheels from what is basically an ultra thin road... then you have reached the concept of PRT - personal rapid transit.
Two things held back PRT in the past. 1. You’ve go to build a decent network to make it worthwhile to use. 2. Olden time 1970s designs relied on every pod/gondola in the city being controlled by a central computer that knew exactly where they all were at all times. If the central computer or communications network went down then an entire city would grind to a halt. Self driving car tech solves this problem. The first one requires political will, but might get a toehold in somewhere like Israel which is always looking to stick it to the oil exporting neighbours.
For more about PRT have a look at Dan Verhoeven’s excellent blog: www.openprtspecs.blogspot.com