America has a looming highway budget crisis

We can’t afford to maintain the roads we have, so why do we keep building more?

The Highway Trust Fund is the primary federal mechanism for surface transportation. It receives revenue mainly from the federal fuel tax (18.4 cents per gallon on gasoline and 24.4 cents per gallon on diesel) plus taxes on tires, heavy vehicles, and some other sources. The fund has two accounts: (1) the Highway Account (road construction, maintenance, and other surface transportation projects), and (2) the much smaller Mass Transit Account.