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/ Enhancing Chain-Up Infrastructure and Compliance in Utah's Mountain Corridors: A Data-Driven Evaluation https://rip.trb.org/View/2655751 Mon, 19 Jan 2026 17:04:02 GMT https://rip.trb.org/View/2655751 Support for AASHTO Committees and Councils. Roadmap for Integrated Selection of Multimodal Facilities https://rip.trb.org/View/2348473 Fri, 08 Mar 2024 10:00:28 GMT https://rip.trb.org/View/2348473 Performance and Contextual Analysis of Roadway Lighting Systems https://rip.trb.org/View/1909925 Tue, 08 Feb 2022 16:29:11 GMT https://rip.trb.org/View/1909925 SPR-4355: Synthesis Study: Facilities (Enterprise Development, Sponsorship/Privatization) https://rip.trb.org/View/1628173 Fri, 31 May 2019 15:22:14 GMT https://rip.trb.org/View/1628173 NCLOS Program Update for the HCM 6th Edition https://rip.trb.org/View/1424437 Mon, 26 Sep 2016 14:04:15 GMT https://rip.trb.org/View/1424437 Research for the AASHTO Standing Committee on Public Transportation. Task 63. DOT Oversight of Facility Projects https://rip.trb.org/View/1345908 Wed, 11 Mar 2015 01:01:03 GMT https://rip.trb.org/View/1345908 Predicting Wildlife Movement Associated with Road and Highway Systems https://rip.trb.org/View/1236266 Thu, 03 Jan 2013 15:44:01 GMT https://rip.trb.org/View/1236266