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A big difference in subway costs is that subways used to be built by closing roadways and digging from above ("cut and cover"). But now it's almost always done
by mypalmike 10y ago
A big difference in subway costs is that subways used to be built by closing roadways and digging from above ("cut and cover"). But now it's almost always done by very slow, very expensive to operate underground boring machines.
- walshemj 10y agoAnd a lot of ultra cheap semi expendable navvies
- maxmcd 10y agohttp://www.vox.com/policy-and-politics/2017/1/1/14112776/new-york-second-avenue-subway-phase-2 http://www.vox.com/policy-and-politics/2017/1/1/14112776/new... NYC subway construction costs exceed costs of similar projects in different countries, by quite a bit.