Ok, but what about subway lines?

And people here always giving US a hard time about lack of public transit.

This is a ridiculous effort, even the best maps I’ve previously seen tend to skip several decommissioned, small, or separate rail lines. This is so comprehensive I feel like I could build a model railway between me and the neighbor’s yard and you’d somehow figure out out and include it if you make an update. Next level, truly.

Do Atlantic ocean next

Just get the Germans there, they’ll build it faster than you can sail down there - just look at their track record they did in the 40’s. Just need the right motivation.

/s, just in case

I heard their trains are never late

This would be much more useful if it also showed the where the airports and seaports are. The rail layout makes no sense without knowing why they put them there.