Research in Progress (RIP) https://rip.trb.org/ en-us Copyright © 2024. 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/ Adaptive Prestressing System for Concrete Crossties: Prototype Development https://rip.trb.org/View/2007977 Mon, 15 Aug 2022 16:37:23 GMT https://rip.trb.org/View/2007977 Prevention of Stress-Induced Failures of Prestressed Concrete Crossties of the Railroad Track Structure (3.5) https://rip.trb.org/View/1590592 Tue, 05 Mar 2019 04:29:46 GMT https://rip.trb.org/View/1590592