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/ 2504 Evaluating Pavement Friction using Dynamic Friction Tester (DFT) https://rip.trb.org/View/2786776 Wed, 07 Oct 2026 11:19:27 GMT https://rip.trb.org/View/2786776 NRRA: Use of Carbon Dioxide for Sustainable and Resilient Concrete Pavements https://rip.trb.org/View/2784534 Tue, 29 Sep 2026 10:12:19 GMT https://rip.trb.org/View/2784534 Performance Evaluation of Intermediate and Base Asphalt Mixtures in Virginia https://rip.trb.org/View/2775952 Thu, 10 Sep 2026 09:45:29 GMT https://rip.trb.org/View/2775952 Develop Repeatability and Acceptance Criteria of Balanced Mix Design Performance Tests https://rip.trb.org/View/2772335 Fri, 28 Aug 2026 17:24:56 GMT https://rip.trb.org/View/2772335 Developing a Balanced Mix Design (BMD) Framework for Low-Volume Surface Mixtures https://rip.trb.org/View/2730683 Thu, 16 Jul 2026 07:52:26 GMT https://rip.trb.org/View/2730683 Development of a Job Mix Formula and QC/QA Framework for NCDOT Chip Seals https://rip.trb.org/View/2726547 Thu, 09 Jul 2026 08:42:48 GMT https://rip.trb.org/View/2726547 Effectiveness of IDEAL-RT Test in Assessing Rutting Resistance of NC Asphalt Mixtures https://rip.trb.org/View/2726545 Thu, 09 Jul 2026 08:35:20 GMT https://rip.trb.org/View/2726545 Verification and Implementation of Production-Level Long-Term Durability Assessment for Asphalt Mixtures https://rip.trb.org/View/2726544 Thu, 09 Jul 2026 08:06:36 GMT https://rip.trb.org/View/2726544 SPR 784 Calibration of APA values to Hamburg values for SC Asphalt Mixes https://rip.trb.org/View/2719305 Thu, 25 Jun 2026 09:03:22 GMT https://rip.trb.org/View/2719305 Development of an IDEAL-Low Temperature (IDEAL-LT) Test for Balanced Mix Design and Acceptance in Cold Regions https://rip.trb.org/View/2717330 Tue, 23 Jun 2026 13:33:42 GMT https://rip.trb.org/View/2717330 Development of an Innovative, Bio-Mediated, Self-Healing Concrete Technology https://rip.trb.org/View/2717327 Tue, 23 Jun 2026 13:29:43 GMT https://rip.trb.org/View/2717327 A Novel Method to Optimize N-design for Balanced Performance and Compactability https://rip.trb.org/View/2717326 Tue, 23 Jun 2026 13:22:57 GMT https://rip.trb.org/View/2717326 Evaluation & Mitigation Methods for the Prevention of Cement Concrete Deterioration due to Pyrrhotite: Part 2 https://rip.trb.org/View/2714457 Tue, 16 Jun 2026 16:43:05 GMT https://rip.trb.org/View/2714457 Cracks of Low-P Rapid Set Concrete in Deck Repairs: Analysis, Prevention, and Alternatives https://rip.trb.org/View/2714454 Tue, 16 Jun 2026 16:19:59 GMT https://rip.trb.org/View/2714454 Refining Volumetric Boundaries for Balanced Mix Design (BMD) Approaches https://rip.trb.org/View/2712200 Wed, 10 Jun 2026 11:05:18 GMT https://rip.trb.org/View/2712200