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 a Network-Level Data-Driven High Friction Surface Treatment Location Selection Approach Leveraging Remote Sensing Technologies https://rip.trb.org/View/2643023 Thu, 18 Dec 2025 14:36:51 GMT https://rip.trb.org/View/2643023 High Friction Surface Treatment Decision-Making Criteria https://rip.trb.org/View/2640691 Tue, 16 Dec 2025 09:20:39 GMT https://rip.trb.org/View/2640691 Microsurfacing Mix Design Evaluation https://rip.trb.org/View/2563765 Fri, 13 Jun 2025 12:17:22 GMT https://rip.trb.org/View/2563765 Guide for Optimized Friction Treatment Selection Strategies https://rip.trb.org/View/2558406 Tue, 27 May 2025 21:08:10 GMT https://rip.trb.org/View/2558406 Design of Surface Treatments with Reclaimed Asphalt Pavement Aggregates in Nevada (NDOT 778-24-803) https://rip.trb.org/View/2502110 Mon, 03 Feb 2025 12:42:56 GMT https://rip.trb.org/View/2502110 Quarry By-product Fines for Otta Seal Surfacing of Local Roads https://rip.trb.org/View/2417469 Fri, 16 Aug 2024 09:11:26 GMT https://rip.trb.org/View/2417469 SPR-4940: Implementing An Advanced Friction Test Program for Seamless Coverage of INDOT System https://rip.trb.org/View/2404037 Wed, 17 Jul 2024 12:07:28 GMT https://rip.trb.org/View/2404037 Bond Performance Between Precast UHPC Substrates and Field Cast UHPC Connections https://rip.trb.org/View/2389412 Wed, 12 Jun 2024 07:23:16 GMT https://rip.trb.org/View/2389412 Synthesis of Information Related to Highway Practices. Topic 56-15. Practices for Selecting, Installing, Maintaining, Replacing, and Successively Using Complementary Bridge Deck Protection Systems https://rip.trb.org/View/2384696 Fri, 31 May 2024 20:17:46 GMT https://rip.trb.org/View/2384696 Asphalt Emulsion-Based High Friction Surface Treatments https://rip.trb.org/View/2381730 Tue, 21 May 2024 20:24:29 GMT https://rip.trb.org/View/2381730 Guidelines for the Selection of Performance-Related Tests for the Acceptance of Preservation Treatments https://rip.trb.org/View/2361977 Mon, 01 Apr 2024 15:55:15 GMT https://rip.trb.org/View/2361977 Evaluation of Enhanced-Friction Asphalt Overlays and Surface Treatments https://rip.trb.org/View/2259930 Tue, 03 Oct 2023 08:50:38 GMT https://rip.trb.org/View/2259930 Develop Recommendations for Evaluating Surface Types and Aggregate Properties to Minimize Wet Weather Crashes https://rip.trb.org/View/2256332 Wed, 27 Sep 2023 17:11:14 GMT https://rip.trb.org/View/2256332 SPR-4646: Advancing INDOT’s Friction Test Program for Seamless Coverage of System https://rip.trb.org/View/1888356 Tue, 26 Oct 2021 10:16:12 GMT https://rip.trb.org/View/1888356 Guidance for the Construction of Sand Seals and Ultra-thin Bonded Wearing Courses https://rip.trb.org/View/1854197 Tue, 25 May 2021 11:34:00 GMT https://rip.trb.org/View/1854197