The Brookings Institution is a private nonprofit organization devoted to independent research and innovative policy solutions. Brookings analyzes current and emerging issues and produces new ideas that matter -- for the nation and the world. It underwrites an extensive amount research in the transportation sector.
The Reason Foundation is a respected think tank that focus on public policy, free markets, economics, civil liberties, regulation and innovation, and has completed extensive research on private infrastructure finance. Reason Foundation publishes a number of journals and magazines, and sponsors research on a variety of topics. Information on its various activities and publications are available on its web site.