>>976565>I've been playing with an idea if it was converted to a single funicular with four cars going up and down at the same time.The issue with that is that the longer a funicular gets, the more weighs the cable. A double funicular as you propose it would mean huge stresses on the upper part, which would also carry the weight of the lower part. So seeing the results, two separate systems will always make more sense.
...HOWEVER you could do this double funicular system with an aerial tramway. The kind of aerial tramway with fixed carrying cable and moving traction cable works essentially like a funicular. If the line doesn't have much gradient it's like a flat funicular, and since you don't have gravity to pull the cars down you have the traction cable as a loop that will pull the cabins either way. Thus the weight of the cable is no longer an issue and you can have a funicular with four cars.
There is an aerial funicular in Barcelona which originally worked that way, though only briefly between 1931 and 1936 when it stopped because of the civil war and was heavily damaged.