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/ Development of In-situ Fracture Toughness Evaluation for Bridge Safety https://rip.trb.org/View/2341566 Mon, 19 Feb 2024 16:38:45 GMT https://rip.trb.org/View/2341566 Develop Countermeasure Strategies for Protecting Bridge Girders Against Overheight Vehicles Impact https://rip.trb.org/View/1867130 Mon, 19 Jul 2021 21:15:30 GMT https://rip.trb.org/View/1867130 Bio-Inspired Reusable Crash Cushions with Superior Energy-Absorbing Capacity https://rip.trb.org/View/1740336 Mon, 21 Sep 2020 16:10:51 GMT https://rip.trb.org/View/1740336 Workstation Tables https://rip.trb.org/View/1366789 Tue, 25 Aug 2015 14:12:48 GMT https://rip.trb.org/View/1366789 Characterization and Modeling of Photon Absorption in Asphalt Materials for Improved Accuracy and Consistency of Nuclear Density Measurement https://rip.trb.org/View/1356625 Fri, 05 Jun 2015 01:00:49 GMT https://rip.trb.org/View/1356625 Functionally Graded Biomimetic Energy Absorption Concept Development for Transportation Systems https://rip.trb.org/View/1301295 Fri, 07 Mar 2014 01:01:31 GMT https://rip.trb.org/View/1301295