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/ 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 Effect of Using RAP on Gravel Roads https://rip.trb.org/View/2720399 Tue, 30 Jun 2026 15:25:11 GMT https://rip.trb.org/View/2720399 Assessing the Value of LiDAR in Detecting Conflicts at Intersections to Enhance Safety https://rip.trb.org/View/2717656 Wed, 24 Jun 2026 14:33:26 GMT https://rip.trb.org/View/2717656 Safety Performance of Safe System Treatments for Corridors and Intersections that May Impact Capacity https://rip.trb.org/View/2712178 Tue, 09 Jun 2026 15:00:53 GMT https://rip.trb.org/View/2712178 Highway Safety Manual Crash Prediction Models of Arterial Weaving Segments https://rip.trb.org/View/2712176 Tue, 09 Jun 2026 14:53:30 GMT https://rip.trb.org/View/2712176 Evaluation of Expanded Uses of Residential Driveway Temporary Signals (RDTS): Turn Lane Volumes and Storage https://rip.trb.org/View/2712243 Tue, 09 Jun 2026 12:32:57 GMT https://rip.trb.org/View/2712243 Advanced Technologies and Data Analytics for Safe, Smart, and Efficient Transportation (ASSET) https://rip.trb.org/View/2709572 Wed, 03 Jun 2026 15:27:05 GMT https://rip.trb.org/View/2709572 SPR-5007: Performance Evaluation and Development of Cost-Effective DWPT Pavements https://rip.trb.org/View/2709428 Wed, 03 Jun 2026 13:25:45 GMT https://rip.trb.org/View/2709428 Investigating Contributing Factors and Potential Countermeasures to Reduce Pedestrian Crashes at Intersections https://rip.trb.org/View/2705384 Thu, 21 May 2026 08:03:58 GMT https://rip.trb.org/View/2705384 Pittsylvania County Road Orders 1767-1783 https://rip.trb.org/View/2702871 Thu, 14 May 2026 10:58:04 GMT https://rip.trb.org/View/2702871 Sensor-informed Generative Digital Twin: High-fidelity Simulation for Sustainable Transportation and Policy Validation https://rip.trb.org/View/2691669 Sun, 12 Apr 2026 23:41:20 GMT https://rip.trb.org/View/2691669 Assessing the Impacts of Safety-Focused Design Interventions on Arterial Roadways https://rip.trb.org/View/2677552 Tue, 03 Mar 2026 20:07:45 GMT https://rip.trb.org/View/2677552 AI-Enabled Vision System for Intersection Analytics https://rip.trb.org/View/2673053 Tue, 24 Feb 2026 15:00:25 GMT https://rip.trb.org/View/2673053 LLM-Orchestrated Multi-Layer Digital Twin Network for Cyber-Resilient Traffic Management https://rip.trb.org/View/2663602 Tue, 03 Feb 2026 15:28:33 GMT https://rip.trb.org/View/2663602 Enhancing Chain-Up Infrastructure and Compliance in Utah's Mountain Corridors: A Data-Driven Evaluation https://rip.trb.org/View/2655751 Mon, 19 Jan 2026 17:04:02 GMT https://rip.trb.org/View/2655751