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this post was submitted on 26 Aug 2023
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the_dunk_tank
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Well, it's a subway, you have to excavate an entire tunnel system for that. But in return you get an entire traffic infrastrucutre that takes up next to no space on the surface, which means a lot in densely built areas. I guess if you'd compare subways to underground roads like that stuff Musk had built in Las Vegas, or if you'd compare roads to cable car tracks, costs would be fairly similar again.
If we are talking about building new roads in cities that is also usually a tunnel these days. The days of Moses tearing down entire city blocks for a highway is largely a thing of the past.
I mean, a decent number of cities run on elevated track...