The Washington D.C. region once again has the dubious distinction of being rated by the Texas A&M Transportation Institute (TTI) 2015 Mobility Scorecard as having the worst traffic congestion in the nation. According to the report, congestion wastes time, fuel, money and productivity and in 2014 cost the nation $160 billion. Read the full report.
An item in City Commentary lists several critiques of the methodology used by the TTI
researchers, including that compact, walkable communities rate poorly on the
Scorecard, despite having good quality of life ratings.
