Cool view ! For France, I've built the first interactive map of all* public transports.

You just zoom on a zone and see the network (the bluish polygons) pop-up, clickable.

Representing trains, that all share a common way but with very different schedules and destinations, is hard. No map is good, all do compromises. Hence I've delayed representing trains, it's too hard.

https://cartes.app/?style=transports&gamme=urbain&filtre=lig...

* well most, those that are published in GTFS.