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/ Damage Progression of Highway Bridges and Operational Vibration-Waveforms-Phase-2 https://rip.trb.org/View/2706038 Sat, 23 May 2026 18:06:49 GMT https://rip.trb.org/View/2706038 Bridge Strike Prevention and Detection https://rip.trb.org/View/2704034 Wed, 20 May 2026 11:37:04 GMT https://rip.trb.org/View/2704034 Leading Permitting Practices that Harmonize Enforcement of Divisible Load Permits across Jurisdictions https://rip.trb.org/View/2681239 Tue, 17 Mar 2026 14:58:59 GMT https://rip.trb.org/View/2681239 Evaluation and Monitoring of an Appropriate and Context-Sensitive Warning System for Bridge Overhead Clearance Detection https://rip.trb.org/View/2531076 Mon, 31 Mar 2025 10:28:12 GMT https://rip.trb.org/View/2531076 Truck Permits: Managing Increasing Loads and Mitigating Infrastructure Damage to Balance Freight Mobility https://rip.trb.org/View/2472700 Mon, 09 Dec 2024 10:27:20 GMT https://rip.trb.org/View/2472700 RES2025-02: Use of Confinement Reinforcement in Prestressed Concrete Beams to Improve Resistance to Impacts from Over Height Loads https://rip.trb.org/View/2437327 Mon, 30 Sep 2024 15:39:09 GMT https://rip.trb.org/View/2437327 Best Practices for Oversized/Overweight Vehicles https://rip.trb.org/View/2420004 Thu, 22 Aug 2024 09:37:21 GMT https://rip.trb.org/View/2420004 Quantify Bridge and Pavement Consumption Due to Permitted Overweight/Oversized (OW/OS) Vehicles https://rip.trb.org/View/2256321 Wed, 27 Sep 2023 16:02:19 GMT https://rip.trb.org/View/2256321 Assessing the Consumption Costs of Motor Vehicles on Arizona Roads and Bridges https://rip.trb.org/View/2248971 Fri, 15 Sep 2023 17:33:37 GMT https://rip.trb.org/View/2248971 Testing and evaluation of energy absorbing panels for overheight collision impact protection https://rip.trb.org/View/2096581 Fri, 13 Jan 2023 14:49:24 GMT https://rip.trb.org/View/2096581 Image-Based Vehicle Height Measurement for Prevention of Low Clearance Infrastructure Collisions https://rip.trb.org/View/1889540 Tue, 02 Nov 2021 15:16:16 GMT https://rip.trb.org/View/1889540 Development of Simplified Factors for Lateral Distribution of Loads of Non-Standard Gauge (NSG) Axles https://rip.trb.org/View/1875793 Mon, 30 Aug 2021 13:18:34 GMT https://rip.trb.org/View/1875793 Develop Countermeasure Strategies for Protecting Bridge Girders Against Overheight Vehicles Impact https://rip.trb.org/View/1867130 Mon, 19 Jul 2021 21:15:30 GMT https://rip.trb.org/View/1867130 Assessment and Repair of Prestressed Bridge Girders Subjected to Over-Height Truck Impacts (OHTI) https://rip.trb.org/View/1738102 Thu, 10 Sep 2020 10:54:48 GMT https://rip.trb.org/View/1738102 Guide for Preventing and Mitigating the Risk of Bridge and Tunnel Strikes by Motor Vehicles https://rip.trb.org/View/1707204 Wed, 20 May 2020 15:01:13 GMT https://rip.trb.org/View/1707204