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If you have the kind of nice geotechnical conditions that permit the use of tunnel boring machines then tunneling isn't actually very expensive. What's killer i
by ComradeTaco 8y ago
If you have the kind of nice geotechnical conditions that permit the use of tunnel boring machines then tunneling isn't actually very expensive. What's killer is the cost of subway stations, which need to be dug out manually.
- Pxtl 8y agoI thought cost-savings from a system that used narrower bores was the key to Musk's whole strategy? I thought that was the whole thing - by designing smaller hardware he could make underground transport affordable?
- ComradeTaco 8y agoTo clarify, I was talking about traditional subway construction and why changes in boring costs would not change that.
- WalterBright 8y agoUnless the stations are put on the surface.