New 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

New 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...