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/ Synthesis of Information Related to Highway Practices. Topic 53-13. Practices for Steel Bridge Fabrication and Erection Tolerances https://rip.trb.org/View/1853020 Tue, 18 May 2021 12:47:29 GMT https://rip.trb.org/View/1853020 Damage Tolerance Testing and Analysis Protocols for Full-Scale Composite Airframe Structures under Repeated Loading https://rip.trb.org/View/1532616 Thu, 16 Aug 2018 10:45:02 GMT https://rip.trb.org/View/1532616 SPM-2: Establish Peformance Tolerances for FHWA Oversight of the NBIS through 23 Metrics https://rip.trb.org/View/1370869 Thu, 01 Oct 2015 16:22:41 GMT https://rip.trb.org/View/1370869