I've been meaning to do the same. I'm currently trying to get information on the number of billboards and when they were put up through FOIA requests so I can run some numbers and I already made some interesting visualizations of how badly the stops are located from JCDecaux's API.

Our capital got these bikes 10 years before us and had similar issues. A small news outlet made a pretty good report on the "secret costs of city bikes" and that's kind of what I'm going for: https://podcrto.si/skrita-cena-izposoje-koles-v-ljubljani-og...