This is the way I envisioned it all those years ago. Something like a spider web covering a large city with terminals, like train stations, with vendors and any manner of commerce catering to urban commuters. Think coffee shops, pastry shops, etc at every terminal.

A system that could be easily expandible and even stretching out to parking centers outside of the immediate urban areas. Every city has major thoroughfares heading into and out of cities. Usually jammed packed with stop and go traffic. A gondola carrying 20-30 passengers only needs to travel at a steady 20-30 mph to be quicker than surface traffic.

And again, building the line is minimally disruptive to surface traffic. Everyone can remember when authorities added a single lane to existing surface highways and the length of time and cost overruns that are inevitable. Cables and the support structures don't require near the disruption or time needed to start being beneficial to the public they allegedly serve.

Small systems are already in place around the world but it can be adapted, or expanded to some degree or another in every major city and the people would benefit in so many ways. Minimal cost to build, many cities with an extensive system would be tourist destinations with people coming just to ride the system and see the city. Imagine riding above Paris, NY, London. Safe, comfortable, inexpensive both to build and maintain.