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/ Risk Evaluation of Transportation Systems to Tornadoes to Facilitate SAFE Digital Twin Development https://rip.trb.org/View/2703879 Mon, 18 May 2026 17:13:44 GMT https://rip.trb.org/View/2703879 National Accessibility Evaluation Phase II https://rip.trb.org/View/2703751 Fri, 15 May 2026 15:29:13 GMT https://rip.trb.org/View/2703751 Federal-Industry Waterway Governance Mapping https://rip.trb.org/View/2698370 Fri, 01 May 2026 19:58:47 GMT https://rip.trb.org/View/2698370 Cybersecurity Analysis to Support Secure Transportation Cyber-Physical Systems https://rip.trb.org/View/2696948 Wed, 29 Apr 2026 16:33:03 GMT https://rip.trb.org/View/2696948 Lessons Learned on Mobility as a Service (MaaS): Exploring Opportunities and Barriers for the U.S. Context https://rip.trb.org/View/2696846 Tue, 28 Apr 2026 11:03:21 GMT https://rip.trb.org/View/2696846 Comprehensive Modeling and Analysis of Energy Options for the US Trucking Freight Transportation: Stakeholder Behavior, Infrastructure Planning, and Local Impacts (Phase 2) https://rip.trb.org/View/2684211 Wed, 25 Mar 2026 17:33:34 GMT https://rip.trb.org/View/2684211 Mid-America Freight Coalition (MAFC) Phase 5 https://rip.trb.org/View/2683017 Thu, 19 Mar 2026 09:48:53 GMT https://rip.trb.org/View/2683017 Advanced Mobility Innovation Lab (AMIL) and Beyond https://rip.trb.org/View/2666833 Wed, 11 Mar 2026 15:46:44 GMT https://rip.trb.org/View/2666833 Micromobility Decision-Making Atlas https://rip.trb.org/View/2669653 Sun, 15 Feb 2026 16:30:25 GMT https://rip.trb.org/View/2669653 Enabling Mobility for Older Adults in the US https://rip.trb.org/View/2669552 Thu, 12 Feb 2026 15:16:36 GMT https://rip.trb.org/View/2669552 Quick-Response Research on Long-Term Strategic Issues. Task 56. Transit Fare Programs for High School and Postsecondary Students https://rip.trb.org/View/2636148 Mon, 08 Dec 2025 20:08:55 GMT https://rip.trb.org/View/2636148 Funding and Financing for Public Transportation at the Local, Regional, and State Levels https://rip.trb.org/View/2636145 Mon, 08 Dec 2025 19:55:17 GMT https://rip.trb.org/View/2636145 Regional Disparities in Work Zone Crashes: Understanding Factors and Predictive Modeling for Targeted Safety Measures https://rip.trb.org/View/2627354 Wed, 19 Nov 2025 15:35:55 GMT https://rip.trb.org/View/2627354 Investing in Talent for Next-Generation Transportation Engineering https://rip.trb.org/View/2627155 Wed, 19 Nov 2025 14:58:25 GMT https://rip.trb.org/View/2627155 Synthesis of Information Related to Airport Practices. Topic S01-33. Practices for Determining Landing Fees at General Aviation Airports https://rip.trb.org/View/2621998 Mon, 10 Nov 2025 19:25:41 GMT https://rip.trb.org/View/2621998