Originally Posted by GSP flyer
May I ask? What's T-REX?
It is a widening project for I-25 and I-225 in the Southeastern portion of Metropolitan Denver.
It also involves an extension of the RTD Light Rail system.
http://www.trexproject.com/
As for Storrow Drive in Boston, one of the biggest problems there is that it was built as a, and
is a 40-mph auto-only parkway but is treated by most drivers as a full 65-mph Interstate. The severe lack of MUTCD-standard signage and lane striping in the Boston area is another handicap.