Let's imagine this:
The little creaking wagons moving on the steel ropes above the machines, railway stations, oil installations, defense lines, forests and lakes... To visualize it I made this picture:
THE ROPEWAY CONVEYOR

The problem is: How should it work in detail?
In my opinion it should be as simplest as possible and very flexible:
1. The ropeways should allow turns on the track. Otherwise you can't get around any indestructible landscape features like lakes or huge forests you don't want to chop down, which means killing some of their purpose. The turns should be either 30° or 45° turns - that way a 90° change in direction is either done by 2x45° or 3x30°... whatever the devs would prefer and looks better (maybe 45° increments only because we have the same for rails). Also making it a chore to setup the ropeways at the same time while making them only go straight (thereby rather inflexible) will render them pretty much unused by majority because why would one want to deal with something that is inflexible and a lot of work at the same time? (MeduSalem's idea)
2. They shouldn't be limited in length, but longer ropeways will be slower.
3. Placement of the poles should work like Big Electric Poles work, maybe even with a similar if not the same range between the poles.
4. As of size of the stations, I think they should be medium in size... the best would be rectangular 5x3, but square 4x4 also would be nice.
5. They should move every type of items: for example 10 per car.
6. Only one of the stations should be powered to move whole ropeway.
7. The item throughput of the ropeway should be the same as the fast transport belt on the middle distances.
