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/ 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 Pavement Surface Properties Consortium Phase IV - Improving Safety and Saving Lives through Pavement Surface Optimization https://rip.trb.org/View/2672598 Thu, 19 Feb 2026 18:59:56 GMT https://rip.trb.org/View/2672598 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 Assessment of hydroplaning potential in coastal regions using roadway characteristics and related datasets https://rip.trb.org/View/2663101 Thu, 29 Jan 2026 17:13:08 GMT https://rip.trb.org/View/2663101 Role of emerging transportation technologies and safety initiatives in mitigating crashes in coastal communities https://rip.trb.org/View/2661744 Thu, 29 Jan 2026 16:13:26 GMT https://rip.trb.org/View/2661744 Wildlife Fencing Effectiveness in Reducing Crashes in the Western US https://rip.trb.org/View/2655748 Mon, 19 Jan 2026 08:33:19 GMT https://rip.trb.org/View/2655748 Optimize Tradeoffs between Centerline Buffers, Lane Width, and Shoulders for Rural Undivided Highways https://rip.trb.org/View/2652072 Fri, 09 Jan 2026 16:29:38 GMT https://rip.trb.org/View/2652072 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 High Friction Surface Treatment Decision-Making Criteria https://rip.trb.org/View/2640691 Tue, 16 Dec 2025 09:20:39 GMT https://rip.trb.org/View/2640691 Develop and Evaluate Long Median Barrier Gate to Assist with Emergency Response https://rip.trb.org/View/2636104 Mon, 08 Dec 2025 09:44:38 GMT https://rip.trb.org/View/2636104 Perform Assessment of TxDOT Safety Scoring Tools to Determine Effectiveness and Calibration https://rip.trb.org/View/2636039 Fri, 05 Dec 2025 14:14:27 GMT https://rip.trb.org/View/2636039 Calibration and Implementation of Highway Safety Manual Bicyclist and Pedestrian Intersection Crash Prediction Models https://rip.trb.org/View/2635921 Thu, 04 Dec 2025 08:52:41 GMT https://rip.trb.org/View/2635921 Synthesis of Information Related to Highway Practices. Topic 57-06. Integrating Safety into Development Reviews and Transportation Impact Practices https://rip.trb.org/View/2630481 Wed, 26 Nov 2025 18:20:05 GMT https://rip.trb.org/View/2630481 A Photogrammetry-based Method to Determine Chip Seal Aggregate Embedment: A Feasibility Study https://rip.trb.org/View/2627511 Thu, 20 Nov 2025 16:29:52 GMT https://rip.trb.org/View/2627511 Advancement of Gender Equity in Transportation Safety, Design, Development, and Evaluation of Roadside Safety Hardware – Phase II https://rip.trb.org/View/2627342 Wed, 19 Nov 2025 14:50:30 GMT https://rip.trb.org/View/2627342