The Top Ten Transit Regions collectively represent a third of U.S. GDP, 24 percent of population, and are projected to grow by 26 percent or 19 million people in the next thirty years.

Over 70 percent of all U.S. transit ridership occurs in these ten metro areas and during the past 15 years (1996 to 2009) ridership increased by over 40 percent or over 2 million additional trips per year. If we do not sufficiently invest funds to expand transit capacity the existing transit networks will not be able to accommodate projected population and employment growth.