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/ Evaluating Construction Workforce Conditions and Their Effects on Productivity and Project Scheduling https://rip.trb.org/View/2712203 Wed, 10 Jun 2026 11:14:16 GMT https://rip.trb.org/View/2712203 Innovative Approaches to Maintenance Funding for Active Transportation Infrastructure on State Highways Research https://rip.trb.org/View/2712169 Tue, 09 Jun 2026 12:38:59 GMT https://rip.trb.org/View/2712169 Nebraska Risk-Informed Construction Scheduling and Impact Analysis https://rip.trb.org/View/2689393 Tue, 02 Jun 2026 12:25:19 GMT https://rip.trb.org/View/2689393 Maintenance Decision Support System Refinement https://rip.trb.org/View/2705945 Thu, 21 May 2026 22:52:21 GMT https://rip.trb.org/View/2705945 Assessment of Litter Hot Spot Areas for Targeted Reduction in Prince George's County https://rip.trb.org/View/2701237 Wed, 13 May 2026 09:15:15 GMT https://rip.trb.org/View/2701237 Evaluate the Safety Effects of Multiple Vehicle Synchronized Warning Lights in ODOT Work Zones https://rip.trb.org/View/2701274 Tue, 12 May 2026 10:43:15 GMT https://rip.trb.org/View/2701274 Advancing Rail Infrastructure Asset Management and Hazard Mitigation: Educational Tools and Practitioner Decision Support Systems https://rip.trb.org/View/2691664 Sun, 12 Apr 2026 23:25:19 GMT https://rip.trb.org/View/2691664 Successful Strategies in Providing Training Programs for State and Local Equipment Technicians https://rip.trb.org/View/2681233 Tue, 17 Mar 2026 15:03:19 GMT https://rip.trb.org/View/2681233 Road Network Restoration after Major Disruptions https://rip.trb.org/View/2447123 Wed, 11 Mar 2026 13:21:54 GMT https://rip.trb.org/View/2447123 National Road Research Alliance (Phase-3) https://rip.trb.org/View/2678150 Fri, 06 Mar 2026 13:10:59 GMT https://rip.trb.org/View/2678150 Modernization and Web-Based Implementation of the Illinois Pavement Feedback System https://rip.trb.org/View/2677555 Wed, 04 Mar 2026 09:22:25 GMT https://rip.trb.org/View/2677555 Inventing an AI-Informed Risk Index to Prioritize Transportation Infrastructure Preservation https://rip.trb.org/View/2672766 Sun, 22 Feb 2026 10:44:16 GMT https://rip.trb.org/View/2672766 Coastal pavement maintenance and rehabilitation decision making based on both surface and subsurface conditions https://rip.trb.org/View/2662938 Thu, 29 Jan 2026 15:57:56 GMT https://rip.trb.org/View/2662938 Development of Data Driven Digital Twin for Enhancing Pavement Performance Prediction in South-Central United States https://rip.trb.org/View/2658057 Fri, 23 Jan 2026 13:50:08 GMT https://rip.trb.org/View/2658057 An AI-Based Reasoning Framework for Proactive Infrastructure Monitoring and Preservation Using Connected Autonomous Vehicles https://rip.trb.org/View/2655750 Mon, 19 Jan 2026 17:01:54 GMT https://rip.trb.org/View/2655750