Found this site with a lot of infographics: https://usmapoffline.blogspot.com/2021/07/north-american-rail-map.html?m=0

The rails are there, but I guess there is no economical benefit in renewing them for the owners of cars companies

The article about the banning of the bicycles in the city centre: https://www.ilpost.it/2026/08/10/como-divieto-bici-centro-storico-rapinese-sindaco-investito/

Yes, that’s exactly the channel i was thinking about. It is full of scientific proofs and goes into every detail of city planning

From what I remember, there is a youtube channel that has more than 100 videos designing a car free city. I cannot find the channel anymore though