[thiscatis]

No they don't. Typical bureaucratic examples:

https://en.wikipedia.org/wiki/Oosterweel_Link

https://edition.cnn.com/travel/article/berlin-brandenburg-ai...

[joe_the_user]

Those are just anecdotes. You can google up ten articles verifying US transit construction costs are higher per mile - and the US is much more spread out too.

Random article.

https://www.constructiondive.com/news/us-rail-projects-take-...

[thiscatis]

maybe because a mile is longer than a kilometer...