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/ Legal Implications for Permitting Airport Service Providers https://rip.trb.org/View/2625810 Thu, 20 Nov 2025 14:57:38 GMT https://rip.trb.org/View/2625810 Airside Planning, Design, Construction, Operations, and Maintenance: WebResource https://rip.trb.org/View/1645869 Mon, 12 Aug 2019 22:22:36 GMT https://rip.trb.org/View/1645869 Update to ACRP Report 40: Airport Roadway Analysis and Curbside Congestion Management Strategies https://rip.trb.org/View/1645873 Mon, 12 Aug 2019 21:51:01 GMT https://rip.trb.org/View/1645873 Technology Assessment to Improve Operations Counts at Non-towered Airports https://rip.trb.org/View/1503752 Fri, 02 Mar 2018 13:48:08 GMT https://rip.trb.org/View/1503752 Strategic Decision Support for Airport Capacity Planning https://rip.trb.org/View/1401982 Fri, 25 Mar 2016 09:32:00 GMT https://rip.trb.org/View/1401982 Guidelines for Risk Analysis in Construction Contract Changes https://rip.trb.org/View/1231052 Thu, 03 Jan 2013 14:11:12 GMT https://rip.trb.org/View/1231052