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/ Administration of Highway and Transportation Agencies. Support for Development of AASHTO'S 2027-2032 Strategic Plan https://rip.trb.org/View/2692291 Mon, 13 Apr 2026 16:41:46 GMT https://rip.trb.org/View/2692291 Automating the Lateral Strength Assessment of the American Association of State Highway and Transportation Officials (AASHTO) Standard and Substandard Concrete Barriers https://rip.trb.org/View/2655577 Thu, 15 Jan 2026 12:25:04 GMT https://rip.trb.org/View/2655577 Enhancing Site Response Analysis for Bridge Infrastructure in the Southern Plains Region: Issues, Pitfalls, and Pathways to Improvement https://rip.trb.org/View/2646962 Tue, 06 Jan 2026 17:14:23 GMT https://rip.trb.org/View/2646962 Support for AASHTO Committees and Councils. AASHTO Committee on Bridges and Structures Research Roadmap https://rip.trb.org/View/2590571 Mon, 18 Aug 2025 19:29:36 GMT https://rip.trb.org/View/2590571 Develop Standardized LRFD Design Methods for Ancillary Highway Structures https://rip.trb.org/View/2420079 Thu, 22 Aug 2024 17:10:40 GMT https://rip.trb.org/View/2420079 Modern and Proven Approaches to Planning, Design, and Operation of Pedestrian Facilities https://rip.trb.org/View/2381700 Mon, 20 May 2024 20:59:14 GMT https://rip.trb.org/View/2381700 Support for AASHTO Committees and Councils. Roadmap for the Transformation to Computer Simulation-Based Assessment of Bridge Railings https://rip.trb.org/View/2350716 Tue, 12 Mar 2024 10:10:02 GMT https://rip.trb.org/View/2350716 Enhancing Pavement Management Guidance https://rip.trb.org/View/2342017 Wed, 21 Feb 2024 19:55:58 GMT https://rip.trb.org/View/2342017 Western Transportation Research Consortium https://rip.trb.org/View/2288966 Wed, 08 Nov 2023 20:31:11 GMT https://rip.trb.org/View/2288966 Transportation Asset Risk and Resilience https://rip.trb.org/View/1957068 Fri, 27 May 2022 12:48:28 GMT https://rip.trb.org/View/1957068 Cost Estimating Practices for Highway Projects https://rip.trb.org/View/1957112 Tue, 24 May 2022 10:30:29 GMT https://rip.trb.org/View/1957112 Strategic Plan and Research Roadmap for the AASHTO Committee on Planning https://rip.trb.org/View/1909940 Tue, 08 Feb 2022 10:19:17 GMT https://rip.trb.org/View/1909940 Completion of the new AASHTO A Practical Guide to Estimating, Part 2 https://rip.trb.org/View/1877207 Wed, 08 Sep 2021 16:51:16 GMT https://rip.trb.org/View/1877207 Research for AASHTO Standing Committee on Highways. Task 421. Review and Update of AASHTO Standard Methods of Test T27 and T30 https://rip.trb.org/View/1877233 Mon, 06 Sep 2021 21:52:06 GMT https://rip.trb.org/View/1877233 Guidelines for Solid-State Roadway Lighting https://rip.trb.org/View/1864201 Mon, 05 Jul 2021 17:42:47 GMT https://rip.trb.org/View/1864201