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Well my point is, a thin tunnel using existing commodity tunneling equipment, without egress, that you put a private $50,000 car into hardly seems like a big "d
by arcticbull 5y ago
Well my point is, a thin tunnel using existing commodity tunneling equipment, without egress, that you put a private $50,000 car into hardly seems like a big "disruption." In fact, it sounds like one extra lane of freeway with a roof on it.
Why not beta test whether adding one extra lane of freeway, but covering it with a roof, improves traffic? I'm betting it won't.
- seanmcdirmid 5y agoExpress lanes with limited access of course do, and tunnels are a great way to save the city above for new routes. But even barring that, I don't see a future for cities that doesn't involve moving more transportation infrastructure underground (for both buses and private vehicles).
- arcticbull 5y agoNew capacity actually doesn't decrease traffic it increases it. It's called induced demand. [1] A sustainable future depends not on private cars in tiny tunnels, but subways and trains. Research by Kent Hymel of California State University of Northridge found that adding one percent more road capacity produces the exact same increase in the amount of vehicle miles traveled. Burying the road isn't going to change that. [1] https://archive.curbed.com/2020/3/6/21166655/highway-traffic-congestion-induced-demand https://archive.curbed.com/2020/3/6/21166655/highway-traffic...