From John Boehner and Eric Cantor's letter to the President. It contains this and other great ways to save money:
Terminate Federal Transportation Funding For “Non-Motorized” Transportation Projects
The Federal government is currently spending $25 million a year to fund four Non-motorized Transportation Pilot programs. This program is designed to fund a network of “non-motorized transportation infrastructure facilities” to encourage residents to walk or bike rather than using a car. Refocusing Federal resources on transportation projects with a federal nexus would save taxpayers $125 million over five years.