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/ Utilizing Hydrogen Fuel Technology for a Transportation Fleet https://rip.trb.org/View/2487229 Wed, 08 Oct 2025 10:19:38 GMT https://rip.trb.org/View/2487229 Using LCA to Reduce Embodied Carbon in Pavement Infrastructure at MnDOT https://rip.trb.org/View/2577112 Fri, 18 Jul 2025 11:20:17 GMT https://rip.trb.org/View/2577112 Vulnerability Assessments of Critical Slope Areas Using Advanced Monitoring Techniques https://rip.trb.org/View/2577111 Fri, 18 Jul 2025 10:58:38 GMT https://rip.trb.org/View/2577111 Navigating Improved Outcomes with Transportation Corridor Rankings https://rip.trb.org/View/2577110 Fri, 18 Jul 2025 10:29:30 GMT https://rip.trb.org/View/2577110 Research Synthesis: Design and Impacts of Rural Roundabouts https://rip.trb.org/View/2577109 Fri, 18 Jul 2025 10:11:22 GMT https://rip.trb.org/View/2577109 Speed Impacts on Complete Streets Elements, Phase II https://rip.trb.org/View/2487323 Fri, 18 Jul 2025 09:52:58 GMT https://rip.trb.org/View/2487323 National Road Research Alliance - NRRA https://rip.trb.org/View/1398590 Mon, 22 Feb 2016 11:39:01 GMT https://rip.trb.org/View/1398590