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/ Evaluation of a Local Carbonate Aggregate Source for Pavement Surface Applications in the Bristol District https://rip.trb.org/View/2714406 Tue, 16 Jun 2026 09:54:44 GMT https://rip.trb.org/View/2714406 How Can NMDOT Use TSD Data to Support Pavement Design https://rip.trb.org/View/2704033 Wed, 20 May 2026 11:15:23 GMT https://rip.trb.org/View/2704033 Impact of Pavement and Weather Conditions on Traffic Speed at Sharp Horizontal Curves https://rip.trb.org/View/2646943 Mon, 05 Jan 2026 23:07:35 GMT https://rip.trb.org/View/2646943 Conduct a Friction Testing Program, Data Analysis and Effectiveness of the NMDOT Open Grade Friction Course Program https://rip.trb.org/View/2582895 Tue, 05 Aug 2025 10:54:23 GMT https://rip.trb.org/View/2582895 Updating Friction/Texture Demand Categories for Improved Pavement Design Guidance https://rip.trb.org/View/2452923 Fri, 15 Nov 2024 16:35:30 GMT https://rip.trb.org/View/2452923 Highway Speed Micro & Macro-Texture Data Collection & Processing for Pavement Friction https://rip.trb.org/View/2413941 Tue, 06 Aug 2024 11:00:40 GMT https://rip.trb.org/View/2413941 Synthesis of Information Related to Highway Practices. Topic 56-17. Friction Management Program Practices to meet Safety and Pavement Performance https://rip.trb.org/View/2384694 Thu, 30 May 2024 16:23:59 GMT https://rip.trb.org/View/2384694 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 Characterization of the Long-term Behavior of Textured Epoxy Coated Rebars in Bridge Decks https://rip.trb.org/View/2229006 Mon, 14 Aug 2023 11:32:05 GMT https://rip.trb.org/View/2229006 Develop Efficient Prediction Model of Highway Friction on an Annual Basis on Texas Network https://rip.trb.org/View/2055955 Thu, 03 Nov 2022 11:48:30 GMT https://rip.trb.org/View/2055955 Development of Numerical Models to Predict the Friction and Skid Number in Network Level Application https://rip.trb.org/View/1879817 Wed, 22 Sep 2021 16:53:54 GMT https://rip.trb.org/View/1879817 Zero Speed Profiler Assessment for Pavement Smoothness and Continuous Pavement Texture Measurements https://rip.trb.org/View/1755605 Thu, 03 Dec 2020 11:38:55 GMT https://rip.trb.org/View/1755605 Optimizing Friction and Noise Properties of Preservation Treatments https://rip.trb.org/View/1504886 Sun, 11 Mar 2018 21:13:13 GMT https://rip.trb.org/View/1504886 Use of Rejuvenator Prior to Chip Seal on Aged Flexible Pavement https://rip.trb.org/View/1472663 Fri, 30 Jun 2017 16:08:11 GMT https://rip.trb.org/View/1472663 PPRC14 SPE 5.02: Performance Models for Seal Coats in PaveM https://rip.trb.org/View/1441829 Wed, 04 Jan 2017 10:53:47 GMT https://rip.trb.org/View/1441829