I once ran into a website about some french industrialist who made a hundred drawings of roads and rail mixed with vehicles that looked like they belonged in so

I once ran into a website about some french industrialist who made a hundred drawings of roads and rail mixed with vehicles that looked like they belonged in some epic cartoon. Im sure his version would be a very long passenger or cargo train (probably both) with the roof exactly the height of the road. Trucks would drive onto the roof and park all the way to the front. Then the train would dive deep into the grounds because gravity is free.