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/ Large Language Model-Driven Crash Risk Analysis System for Rural and Tribal Roadways https://rip.trb.org/View/2731923 Fri, 17 Jul 2026 16:08:51 GMT https://rip.trb.org/View/2731923 Evaluate Traffic Control Devices Viable Use to Reduce Speeding Behavior at High-Low Speed Zone Locations in Michigan https://rip.trb.org/View/2731925 Fri, 17 Jul 2026 14:50:37 GMT https://rip.trb.org/View/2731925 Evaluate PVC Water Main Materials in Roadway Projects https://rip.trb.org/View/2731924 Fri, 17 Jul 2026 14:29:12 GMT https://rip.trb.org/View/2731924 Evaluation of Traffic Speed Deflectometer Data (TSD) for Potential Use in Michigan https://rip.trb.org/View/2731922 Fri, 17 Jul 2026 13:59:29 GMT https://rip.trb.org/View/2731922 Enhanced Understanding of Concrete Pavement Performance https://rip.trb.org/View/2731921 Fri, 17 Jul 2026 13:20:05 GMT https://rip.trb.org/View/2731921 Enhanced Understanding of Hot Mix Asphalt (HMA) https://rip.trb.org/View/2731920 Fri, 17 Jul 2026 13:08:30 GMT https://rip.trb.org/View/2731920 Traffic Signal Pre-emption Effectiveness in Michigan https://rip.trb.org/View/2731919 Fri, 17 Jul 2026 11:58:12 GMT https://rip.trb.org/View/2731919 Connected and Automated Vehicle (CAV) Readiness Survey: Are MDOT Roads Machine Readable https://rip.trb.org/View/2731918 Fri, 17 Jul 2026 11:47:59 GMT https://rip.trb.org/View/2731918 High Load Hit Prevention https://rip.trb.org/View/2562331 Fri, 17 Jul 2026 10:22:15 GMT https://rip.trb.org/View/2562331 Guidelines and Best Practices for Determining the Life Cycle Cost of Various Superstructure Types https://rip.trb.org/View/2731917 Fri, 17 Jul 2026 10:05:08 GMT https://rip.trb.org/View/2731917 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 SPR-5133: Evaluation of In-CAB Virtual Sign Network on CMV Safety and Operations https://rip.trb.org/View/2727696 Wed, 15 Jul 2026 11:42:05 GMT https://rip.trb.org/View/2727696 SPR-5132: Implementation of Proven CV Applications on the Local System LRS https://rip.trb.org/View/2727695 Wed, 15 Jul 2026 11:40:27 GMT https://rip.trb.org/View/2727695 Artificial Intelligence for Pavement Condition Assessment from 2D/3D Surface Images https://rip.trb.org/View/2727389 Fri, 10 Jul 2026 17:50:55 GMT https://rip.trb.org/View/2727389 Leveraging Telematics Data for Enhanced Traffic Safety: Unveiling Crash-Prone Hotspots and Mitigating Incidents - Phase 2 https://rip.trb.org/View/2727388 Fri, 10 Jul 2026 17:07:46 GMT https://rip.trb.org/View/2727388