Highway Funding

Since 1956, federal, state and local governments have invested nine times more capital funding in highway subsidies than in transit. In 2004, state governments spent nearly 13 times more public funds on highways than on transit. On top of all that, the process for securing funding for new transit lines is far more onerous and less certain than for highway projects, with the federal government generally picking up a smaller share of the tab for new transit lines than for new highway projects."
http://www.planetizen.com/node/34151