Japan rail flow: passenger throughput per segment

Kinda cool to see the rail flow as arteries of a region. Would love to see for all transportation systems (freeways, freight, air, etc).

The other maps are pretty cool too: https://anita.garden/projects/

Regions of one/ten million people: [asia], [north america], [world]

[asia]:https://anita.garden/asia1mloc/

[north america]:https://anita.garden/na1m/

[world]:https://anita.garden/world10mfull/