diana-furchtgottroth–- Diana Furchtgott-Roth, former chief economist at the U.S. Department of Labor, is a senior fellow at the Hudson Institute. The views expressed are her own. –-

Just as motorists began the summer driving season, U.S. Department of Transportation Secretary Ray LaHood told Congress that the Highway Trust Fund will run out of money by August.   Rising gasoline prices and the recession mean less driving, and less driving means lower revenues from gasoline taxes for the Highway Trust Fund.

At the same time, President Obama wants to spend $13 billion as a downpayment on high-speed rail, an expensive form of transportation that will reach only small segments of the country and that will not substitute for highways.  The money would be better spent on developing a more stable  source of revenue for highways, based on miles driven rather than gasoline used, that would help to reduce traffic congestion and greenhouse gas emissions.

When the Highway Trust Fund ran out of money in 2008, Congress transferred $8 billion to the fund from general revenues as a repayment from 1998, when the fund was in surplus, and $8 billion was moved into general spending.  This year, if Congress transfers money, it would be a direct expenditure, with no fig leaf. Without a transfer, work on many projects would stop or slow down.

The federal government financed the interstate highway system by means of a fuel tax because that was the best method available. Legislation passed in 1956 provided that, on completion, the federal tax would be repealed and funding restored to the states. The highway system is now complete, so there is no rationale for continuing federal involvement in financing state roads.