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/ Impact Study on Increasing Truck Permit Weight Limits: Infrastructure & Economic Considerations https://rip.trb.org/View/2724819 Wed, 08 Jul 2026 13:35:02 GMT https://rip.trb.org/View/2724819 Evaluation of Large Truck Parameter Requirements For Crash Testing https://rip.trb.org/View/2712181 Tue, 09 Jun 2026 15:16:30 GMT https://rip.trb.org/View/2712181 Public-Private Partnerships for Truck Parking Capacity Expansion and Development https://rip.trb.org/View/2712179 Tue, 09 Jun 2026 15:04:08 GMT https://rip.trb.org/View/2712179 SPR-5042: Performance and Safety Evaluation of Truck Mounted Debris Clearing Systems https://rip.trb.org/View/2709430 Wed, 03 Jun 2026 13:31:12 GMT https://rip.trb.org/View/2709430 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 A Robust Optimization-Based Approach for an Integrated Truck-Drone Emergency Resource Distribution System https://rip.trb.org/View/2684212 Wed, 25 Mar 2026 17:23:54 GMT https://rip.trb.org/View/2684212 A Data-driven Approach in Improving Truck Parking Efficiency https://rip.trb.org/View/2684213 Wed, 25 Mar 2026 17:16:25 GMT https://rip.trb.org/View/2684213 Enhancing Freight Safety and Efficiency for California’s Logging Industry: A Data-Driven Approach https://rip.trb.org/View/2684215 Wed, 25 Mar 2026 17:03:58 GMT https://rip.trb.org/View/2684215 Emergency Truck Parking Location Modeling https://rip.trb.org/View/2684216 Wed, 25 Mar 2026 16:59:53 GMT https://rip.trb.org/View/2684216 Enhancing Rural Freight Resilience in the Southeastern U.S.: Data-Driven Modeling and Decision Support for Supply Chain Efficiency. https://rip.trb.org/View/2643108 Sat, 20 Dec 2025 17:04:44 GMT https://rip.trb.org/View/2643108 Development of In-Pavement LFBG Sensors for Vehicle WIM System Measurement and Monitoring in Rural Low-Volume Road Conditions Phase One: Theoretical Research https://rip.trb.org/View/2596477 Mon, 08 Sep 2025 16:01:37 GMT https://rip.trb.org/View/2596477 SPR-5021: Traffic Signal Freight Prioritization via Vehicle to Infrastructure (V2I) Communications https://rip.trb.org/View/2576723 Tue, 15 Jul 2025 15:48:12 GMT https://rip.trb.org/View/2576723 Analysis and Implications of the Vehicle Inventory and Use Survey (VIUS) https://rip.trb.org/View/2549196 Mon, 05 May 2025 15:14:35 GMT https://rip.trb.org/View/2549196 Comprehensive assessment of alternative fueling system supply chains in the heavy duty trucking sector https://rip.trb.org/View/2495007 Fri, 31 Jan 2025 18:42:13 GMT https://rip.trb.org/View/2495007 Update of Traffic Factor Equations for IDOT Mechanistic-Empirical Pavement Design https://rip.trb.org/View/2486928 Mon, 06 Jan 2025 12:32:41 GMT https://rip.trb.org/View/2486928