Research in Progress (RIP) https://rip.trb.org/ en-us Copyright © 2026. National Academy of Sciences. All rights reserved. http://blogs.law.harvard.edu/tech/rss tris-trb@nas.edu (Bill McLeod) tris-trb@nas.edu (Bill McLeod) Research in Progress (RIP) https://rip.trb.org/Images/PageHeader-wTitle-RIP.jpg https://rip.trb.org/ The Substitution of Ground Transportation for Service to Smaller Communities Now Receiving Essential Air Service Subsidies https://rip.trb.org/View/1372841 Tue, 27 Oct 2015 12:25:32 GMT https://rip.trb.org/View/1372841 Financing High Speed Rail in the U.S. and France: The Evolution of Public-Private Partnerships https://rip.trb.org/View/1263964 Tue, 01 Oct 2013 02:47:55 GMT https://rip.trb.org/View/1263964 Research of Transportation Policy for Low-Cost, Intercity Express Bus Industry within the Northeast Corridor https://rip.trb.org/View/1231672 Thu, 03 Jan 2013 14:23:53 GMT https://rip.trb.org/View/1231672