[danbruc]

See also isochron map [1].

[1] https://en.wikipedia.org/wiki/Isochrone_map

[rottencupcakes]

These actually point of a failure mode of the original topic's visualization, at least as it pertains to public transit: https://upload.wikimedia.org/wikipedia/commons/thumb/4/40/Ma...

(I think a previous commenter called this out by referring to subways as "wormholes")

As for car directions, you should be able to create an isochron by drawing circles in the transformed map!

[vvolhejn]

Yes! The fact that isochrones become circles is one of my favorite things about this. I also discuss this in the video (https://youtu.be/rC2VQ-oyDG0?t=134) I made about these.

[avidiax]

I prefer the typical isochron presentation over the warping. It's unfortunately hard to find free, public isochron maps, though. Some examples I've found:

https://www.targomo.com/developers/apis/isochrone/

https://direkt.bahn.guru/?origin=8503000

https://www.chronotrains.com/en

[rompic]

There is also https://www.mapnificent.net/ For public transport