TIL that some newer cable car projects in Switzerland embed strands of fiber optics within the cable car's carrier cable.
https://schilthornbahn20xx.ch/en/Info/Facts__and__Figures 48 singlemode strands!
https://www.fatzer.com/en/products/integra-integra-data-27
Makes sense, but still smart engineering!
@robryk no clue, but if you look into recent cable car construction projects in Switzerland they often come with video diaries showing some behind the scenes stuff, and I've seen some of those videos showing the cable making process. Not for this specific type though, but may be findable!