In article , Wolfgang Schwanke
wrote:

wrote in :

Like everyone else, only if they absolutely have to as tunnel are
expensive.

They are. But building a highway system with all the accessories you
need to keep it running isn't exactly a bargain either. And that
includes tunnelsl actually.

But the highway system is already built. It's not a comparison of
two alternatives (highway vs rail) starting from a clean sheet of paper.

--
Bob Noel
(goodness, please trim replies!!!)