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 Strategic Interactions in Mixed-Autonomy Networks: Multi-Company AV/HV Fleet Operations and Policy Implications https://rip.trb.org/View/2786713 Mon, 05 Oct 2026 13:38:06 GMT https://rip.trb.org/View/2786713 Roadmap for Virtual Traffic Light Control at Intersections Using Connectivity, AI and Digital Twins https://rip.trb.org/View/2786712 Mon, 05 Oct 2026 13:32:38 GMT https://rip.trb.org/View/2786712 Data Driven Analysis and Modeling of Merging Behavior and Traffic Breakdown at Freeway Merging Bottlenecks https://rip.trb.org/View/2786711 Mon, 05 Oct 2026 13:30:33 GMT https://rip.trb.org/View/2786711 Measuring Household Mobility and Travel Patterns with Partial Vehicle Automation https://rip.trb.org/View/2786708 Mon, 05 Oct 2026 13:28:16 GMT https://rip.trb.org/View/2786708 Multi-modal Surveillance and Behavioral Interventions for Micromobility Safety: A Data-Driven "Safety Ecosystem" to Mitigate Traumatic Brain Injury https://rip.trb.org/View/2786707 Mon, 05 Oct 2026 13:26:01 GMT https://rip.trb.org/View/2786707 Advancing Autonomous Vehicle Deployment in U.S. Cities: A Decision-Support Tool for Implementation and System Performance https://rip.trb.org/View/2786705 Mon, 05 Oct 2026 05:39:02 GMT https://rip.trb.org/View/2786705 Clear Roads Winter Highway Operations Phase IV Pooled Fund https://rip.trb.org/View/2784243 Mon, 05 Oct 2026 04:59:49 GMT https://rip.trb.org/View/2784243 Performance-Based Evaluation of Expanded Polystyrene (EPS) Thickness in Integral Abutment Bridges https://rip.trb.org/View/2784732 Thu, 01 Oct 2026 08:42:00 GMT https://rip.trb.org/View/2784732 Evaluation of Traffic Speed Deflection Devices (TSDD) for Collecting, Reporting, and Utilizing Pavement Network and Project Level Structural Data in Utah https://rip.trb.org/View/2784729 Wed, 30 Sep 2026 19:13:13 GMT https://rip.trb.org/View/2784729 Solar Noise Barrier Industry Discovery and Prototyping https://rip.trb.org/View/2784616 Wed, 30 Sep 2026 11:25:18 GMT https://rip.trb.org/View/2784616 AI Applications for Developing Contractors Prequalification Criteria and Safety Matrix for NCDOT https://rip.trb.org/View/2784615 Wed, 30 Sep 2026 11:09:05 GMT https://rip.trb.org/View/2784615 Advancing the Extended T-FAST Test for Assessing ASR Risk in Hardened Concrete https://rip.trb.org/View/2784610 Wed, 30 Sep 2026 10:32:25 GMT https://rip.trb.org/View/2784610 Reassessing the Subsurface Conditions and the Durability of Buried Foundation Elements at a Texas National Geotechnical Experimentation Site https://rip.trb.org/View/2780471 Wed, 23 Sep 2026 18:20:03 GMT https://rip.trb.org/View/2780471 Applied Generative AI Pilot: Establishing the Rapid Applied Research Environment (RARE) for Construction & Materials https://rip.trb.org/View/2780490 Mon, 21 Sep 2026 16:09:10 GMT https://rip.trb.org/View/2780490