@380kmh I'm know you're not a "road" guy, but why does Europe, and I presume Japan, build road tunnels so much better than we do? I assume the trains are similar as well. Do they have more sophisticated tunneling technology than here in the States?
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I would expect difference in practice rather than tech explains it if tru
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I was in Madrid a few years ago and they buried most of the highways that run through the city. I wasn't sure if more sophisticated tunneling technology was in use over there. Same even in the rural areas.
End of conversation
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