State and local governments provide most of the funding for critical infrastructure systems, but spending has declined over the last 50 years.
Public infrastructure spending from all levels of government totaled $416 billion in 2014—$41 billion (9 percent) less than its peak of $457 billion in 2003.
Of the more than 1,800 mass transit systems in the United States—including those running trains, buses, or other transport modes—roughly 2 percent reported that fare revenue exceeded operating expenses in 2013.
Federal taxes, which are constant across states, amount to 18.4 cents per gallon—of which 15.44 cents go to the highway portion of the Highway Trust Fund (HTF), 2.86 cents to the mass transit portion of the HTF, and 0.1 cent to maintaining underground storage tanks). State taxes on gasoline vary considerably.