Article Photos: D.C. ranked No. 1 in traffic congestion: Video



Examiner file While D.C. area traffic ranked worst on a study by the Texas Traffic Institute, the region ranked 9th in a similar study by GPS maker TomTom.

Examiner file While D.C. area traffic ranked worst on a study by the Texas Traffic Institute, the region ranked 9th in a similar study by GPS maker TomTom.