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/ Aeromedical HFACS Nanocode Review and Validation https://rip.trb.org/View/2646975 Thu, 08 Jan 2026 08:56:35 GMT https://rip.trb.org/View/2646975 Gene Expression and Biomarker Utility in Postmortem Samples https://rip.trb.org/View/1949473 Mon, 09 May 2022 16:27:51 GMT https://rip.trb.org/View/1949473 Investigate Age Impacts on Controlled Flight into Terrain (CFIT) Crashes in General Aviation https://rip.trb.org/View/1881804 Mon, 04 Oct 2021 13:27:28 GMT https://rip.trb.org/View/1881804 Rotorcraft Wire Strike https://rip.trb.org/View/1714474 Fri, 12 Jun 2020 16:15:32 GMT https://rip.trb.org/View/1714474 Airborne Collision Severity Evaluation - Structural Impact https://rip.trb.org/View/1565989 Tue, 30 Oct 2018 08:58:33 GMT https://rip.trb.org/View/1565989 Airborne Collision Severity Evaluation - Engine Ingestion https://rip.trb.org/View/1562138 Mon, 08 Oct 2018 13:53:23 GMT https://rip.trb.org/View/1562138 UAS Ground Collision Severity https://rip.trb.org/View/1549416 Fri, 21 Sep 2018 18:24:52 GMT https://rip.trb.org/View/1549416 UAS Airborne Collision Severity Evaluation https://rip.trb.org/View/1549414 Fri, 21 Sep 2018 18:24:48 GMT https://rip.trb.org/View/1549414 UAS Ground Collision Severity Studies https://rip.trb.org/View/1484944 Wed, 04 Oct 2017 17:26:00 GMT https://rip.trb.org/View/1484944 UAS Airborne Collision Severity Peer Review https://rip.trb.org/View/1484942 Wed, 04 Oct 2017 17:11:02 GMT https://rip.trb.org/View/1484942 UAS Ground Collision Severity https://rip.trb.org/View/1397574 Fri, 05 Feb 2016 09:26:42 GMT https://rip.trb.org/View/1397574 UAS Airborne Collision Severity Evaluation https://rip.trb.org/View/1397573 Thu, 04 Feb 2016 16:06:35 GMT https://rip.trb.org/View/1397573 Redesigning Weather-related Training and Testing of General Aviation Pilots: Phase II https://rip.trb.org/View/1360963 Wed, 15 Jul 2015 01:01:00 GMT https://rip.trb.org/View/1360963