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/ Selecting Appropriate Mitigation Methods for Soil Slope Failures: A Safety and Equity-Centric Approach https://rip.trb.org/View/2628205 Fri, 21 Nov 2025 14:23:07 GMT https://rip.trb.org/View/2628205 Design Guidance and Best Practices for the Use of Light Fill https://rip.trb.org/View/2487315 Fri, 18 Jul 2025 10:36:48 GMT https://rip.trb.org/View/2487315 Improving Safety by Eliminating the Bump at End of the Bridge Using Lightweight Backfill and Geosynthetics https://rip.trb.org/View/2341567 Mon, 19 Feb 2024 16:04:06 GMT https://rip.trb.org/View/2341567 Internal Curing of 3D Printed Engineering Cementitious Composites: Paving the Way for Sustainable and Durable Infrastructure in the Southwest Climates https://rip.trb.org/View/2291297 Thu, 16 Nov 2023 17:47:48 GMT https://rip.trb.org/View/2291297 Extend Service Life of Concrete Bridges Decks with Internal Curing https://rip.trb.org/View/2292366 Wed, 15 Nov 2023 17:59:44 GMT https://rip.trb.org/View/2292366 Durability of Lightweight Concrete Bridge Decks https://rip.trb.org/View/2270035 Tue, 17 Oct 2023 18:43:07 GMT https://rip.trb.org/View/2270035 Development of Soil-Biochar Mixtures as a Sustainable and Multi-Functional Roadway Fill Material https://rip.trb.org/View/1891229 Wed, 10 Nov 2021 08:23:45 GMT https://rip.trb.org/View/1891229 Heated Pavements: Phase Change Materials https://rip.trb.org/View/1503750 Fri, 02 Mar 2018 13:32:06 GMT https://rip.trb.org/View/1503750 Development of Rapid PCC Pavement Repair Materials and Construction Techniques https://rip.trb.org/View/1364462 Sat, 08 Aug 2015 01:01:20 GMT https://rip.trb.org/View/1364462