Why American transport projects cost so much

[otkaznik1]

... if New York could build subways at the same costs as Paris or Tokyo, it could finish the entire Second Avenue Subway project —the most expensive subway in the world—for the cost of the single station it's currently building at the World Trade Centre site.

http://www.economist.com/blogs/gulliver/2012/09/public-transport-costs?fsrc=nlw|gul|9-11-2012|3427019|36501456|