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/ An Efficient Algorithm for Solving Collaborative Truck-Drone Parcel Delivery System Considering En-Route Launching and Recovery Points https://rip.trb.org/View/2692315 Tue, 14 Apr 2026 12:15:01 GMT https://rip.trb.org/View/2692315 AAM-Enabled Intermodal Freight Strategies for Supply Chain Resilience and Efficiency https://rip.trb.org/View/2691666 Sun, 12 Apr 2026 23:32:25 GMT https://rip.trb.org/View/2691666 Optimizing Last-Mile Delivery Using Micromobility and Autonomous Technologies: A Scalable Framework for Future Logistics Solutions https://rip.trb.org/View/2684210 Wed, 25 Mar 2026 17:38:56 GMT https://rip.trb.org/View/2684210 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 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 Spatial Modeling to support Supply Chain Policymaking across Metropolitan Areas in Tennessee https://rip.trb.org/View/2684214 Wed, 25 Mar 2026 17:11:43 GMT https://rip.trb.org/View/2684214 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 Advancing Urban Co-Modality with Drone Delivery Services https://rip.trb.org/View/2684217 Wed, 25 Mar 2026 16:53:48 GMT https://rip.trb.org/View/2684217 Strategic Investment Choice to Reduce Disruptions and Increase Resiliency of Roadway Freight Network https://rip.trb.org/View/2684218 Wed, 25 Mar 2026 16:46:02 GMT https://rip.trb.org/View/2684218 Fusing Shipper Behavior Models between Markets and Approaches https://rip.trb.org/View/2684219 Wed, 25 Mar 2026 16:39:46 GMT https://rip.trb.org/View/2684219 Generating reliable freight disruption measures with freight telematics data https://rip.trb.org/View/2684220 Wed, 25 Mar 2026 16:27:16 GMT https://rip.trb.org/View/2684220 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 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