Imagine every marketplace and port was connected to warehouses via rail tracks … imagine the efficiency … oh no that was 100 years ago, nowadays road with potholes only.
Imagine having literally no roads in a district, just a bunch of tracks taking care of both people and cargo, and the rest being green space and walking and bike paths.
I would also imagine a computer algorithm could manage all the signaling and switches … the dream of driver-less trains is way more feasible than driverless trucks (Big Tech and Car Lobby are lobbying hard for this), since a train can only go forwards or backwards on a given track.
There are already plenty of automated light rail and metros, though they are almost always grade separated and fenced off for safety. There have been automated trains since, no joke, the 70s.
Fuck Cars and everything that is and has been designed around and for cars over people.