I actually had thought significantly about cable cars and the like for use on mars, however, I am fairly certain a martian economy would not be able to create the precision machinery or the very precise grades of metals required for the cables.
I like the idea, because by its nature it negates the severity of the terrain beneath it.. You can go up and over pretty much anything the earth can throw at you... But.... I am really concerned with maintenance, creation, repair, reliability, and capacity.
I just cannot imagine any way this could be implemented over the distances required, but if it could be, and if the precision machinery could be transported and made to work on mars for its creation... and if the maintenance aspects could be overcome.. it could be good... But I really think a tubular steel monorail track or standard track would be more likely.
But I did think about them, and while I may be wrong, I dismissed them as a possibility due to the technical challenges in building one.