On Fri, Apr 29, 2011 at 7:24 PM, <mix...@bigpond.com> wrote: > I think putting roads underground is far too expensive, so I doubt that will > happen either (except perhaps here and there in large cities).
As a former employee of Parsons Brinckerhoff, I agree, in the short term. However, there's the "Big Dig". It actually worked out for Boston. T
