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/ Which Way Forward? Learning from Global Informal Transport Networks to Inform Microtransit Services in California https://rip.trb.org/View/2695811 Thu, 23 Apr 2026 18:05:53 GMT https://rip.trb.org/View/2695811 A Data-driven Approach in Improving Truck Parking Efficiency https://rip.trb.org/View/2684213 Wed, 25 Mar 2026 17:16:25 GMT https://rip.trb.org/View/2684213 Evaluating Efficiency of Rural Transit Systems https://rip.trb.org/View/2652175 Tue, 13 Jan 2026 15:33:18 GMT https://rip.trb.org/View/2652175 Transportation and Mental Health in Central Texas Using 211 Call Center Data – An Exploratory Analysis https://rip.trb.org/View/2652177 Tue, 13 Jan 2026 15:19:02 GMT https://rip.trb.org/View/2652177 Improve Wet-Weather Visibility of Retroreflective Pavement Markings https://rip.trb.org/View/2652208 Tue, 13 Jan 2026 14:50:42 GMT https://rip.trb.org/View/2652208 Detection of Passages Beneath Highways https://rip.trb.org/View/2640689 Tue, 16 Dec 2025 09:16:07 GMT https://rip.trb.org/View/2640689 SAFE Schools For Safer Future https://rip.trb.org/View/2628212 Fri, 21 Nov 2025 14:27:17 GMT https://rip.trb.org/View/2628212 SPR-5000: Retention of the Early-Career Highway Technician Workforce: Exploring and Addressing Their Career Trajectories and Challenges https://rip.trb.org/View/2603849 Thu, 25 Sep 2025 10:26:08 GMT https://rip.trb.org/View/2603849 Comparing Resistivity and Conductivity in Metal Culverts https://rip.trb.org/View/2582927 Tue, 05 Aug 2025 13:13:14 GMT https://rip.trb.org/View/2582927 Evaluation of Alternative Materials for Timber Bridge Deck Plank Replacement https://rip.trb.org/View/2582877 Tue, 05 Aug 2025 10:04:19 GMT https://rip.trb.org/View/2582877 Novel Durability Screening Method for Stabilized Geomaterials https://rip.trb.org/View/2577122 Fri, 18 Jul 2025 11:51:15 GMT https://rip.trb.org/View/2577122 Pavement Conditions Assessment and Prediction (PCAP): A geospatial machine learning approach to inform decision-making https://rip.trb.org/View/2570737 Wed, 02 Jul 2025 11:39:48 GMT https://rip.trb.org/View/2570737 Utilizing Digital Twining Technologies for Addressing FDOT Priorities https://rip.trb.org/View/2550951 Thu, 08 May 2025 12:29:47 GMT https://rip.trb.org/View/2550951 Identification of Alternative Coarse and Fine Aggregates and Specifications for Evaluation https://rip.trb.org/View/2550944 Thu, 08 May 2025 11:15:14 GMT https://rip.trb.org/View/2550944 "Cradle to Cradle" Approach to Shoreline Stabilization and Erosion Control combining Native Dredge Materials with Advanced Manufacturing https://rip.trb.org/View/2508955 Wed, 12 Feb 2025 08:43:32 GMT https://rip.trb.org/View/2508955