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/ TRB Core Program Services for a Highway RD&T Program – Federal Fiscal Year 2026/TRB (State DOTs) Fiscal Year 2027 https://rip.trb.org/View/2692353 Tue, 14 Apr 2026 20:24:09 GMT https://rip.trb.org/View/2692353 Finding the Bed Shear Stress Using the Logarithmic Law at Channel Roughness Transitions https://rip.trb.org/View/2672767 Mon, 23 Feb 2026 13:58:52 GMT https://rip.trb.org/View/2672767 Concrete Materials Research Synthesis https://rip.trb.org/View/2671998 Wed, 18 Feb 2026 13:18:58 GMT https://rip.trb.org/View/2671998 Designing Safer Streets https://rip.trb.org/View/2662686 Thu, 29 Jan 2026 16:30:17 GMT https://rip.trb.org/View/2662686 Digital Twin Modeling of NOx Formation from Transient Vehicle Operations in Hilly Terrains https://rip.trb.org/View/2652170 Tue, 13 Jan 2026 16:14:22 GMT https://rip.trb.org/View/2652170 Bridging Data Gaps with Modeled Data from Generative AI: Advancing Health in Transportation Research https://rip.trb.org/View/2652171 Tue, 13 Jan 2026 16:10:26 GMT https://rip.trb.org/View/2652171 Pedestrian Route Choice and Traffic Exposures: A Case Study in Downtown Atlanta https://rip.trb.org/View/2652174 Tue, 13 Jan 2026 15:38:52 GMT https://rip.trb.org/View/2652174 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 Health and Activity Impacts of Student Commute Modes https://rip.trb.org/View/2652176 Tue, 13 Jan 2026 15:25:48 GMT https://rip.trb.org/View/2652176 Video Summary Report (VSR) Production https://rip.trb.org/View/2593193 Tue, 26 Aug 2025 12:49:08 GMT https://rip.trb.org/View/2593193 District Highway Management Research On-Call (ROC) FY26-28 https://rip.trb.org/View/2582820 Mon, 04 Aug 2025 13:34:53 GMT https://rip.trb.org/View/2582820 TRB Core Program Services for a Highway RD&T Program – Federal Fiscal Year 2025/TRB (State DOTs) Fiscal Year 2026 https://rip.trb.org/View/2573045 Fri, 11 Jul 2025 13:28:20 GMT https://rip.trb.org/View/2573045 Legal Aspects of Transit and Intermodal Transportation Programs https://rip.trb.org/View/2563008 Mon, 09 Jun 2025 23:11:17 GMT https://rip.trb.org/View/2563008 Technology Transfer Support https://rip.trb.org/View/2560847 Tue, 03 Jun 2025 08:34:36 GMT https://rip.trb.org/View/2560847 Project Cohorts https://rip.trb.org/View/2553661 Wed, 14 May 2025 13:29:32 GMT https://rip.trb.org/View/2553661