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 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 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 OpenRoad Link: A Public-Private Data Exchange for Safer, Smarter Trucking https://rip.trb.org/View/2646948 Tue, 06 Jan 2026 08:59:12 GMT https://rip.trb.org/View/2646948 Guide on Truck Rest and Service Areas for Critical Supply Chain Delivery https://rip.trb.org/View/2614489 Mon, 27 Oct 2025 17:32:58 GMT https://rip.trb.org/View/2614489 Integrating Large Commercial Motor Vehicle Safety into State Freight and Safety Planning https://rip.trb.org/View/2558373 Thu, 29 May 2025 12:59:45 GMT https://rip.trb.org/View/2558373 Express Lanes Benefitting Freight Mobility: Can Express Lane Systems and its Benefits to General-purpose Lanes Improve Freight Mobility? https://rip.trb.org/View/2553996 Fri, 16 May 2025 07:20:18 GMT https://rip.trb.org/View/2553996 Modeling Wolf Creek Pass Combination of Layers of Barriers https://rip.trb.org/View/2431164 Mon, 16 Sep 2024 08:56:10 GMT https://rip.trb.org/View/2431164 Embedded Hybrid Truck-Drone Delivery Routing Design for Rural Areas https://rip.trb.org/View/2422983 Thu, 29 Aug 2024 16:41:50 GMT https://rip.trb.org/View/2422983 Analyzing Truck Size and Weight Impacts on Vehicle Miles Traveled https://rip.trb.org/View/2398002 Wed, 26 Jun 2024 09:46:42 GMT https://rip.trb.org/View/2398002 Analyzing and Predicting Truck Travel Time Reliability https://rip.trb.org/View/2394459 Tue, 18 Jun 2024 09:51:31 GMT https://rip.trb.org/View/2394459 Enhancing Rural Roadway Safety through Geospatial Analysis and 2SFCA-Driven Rest Area Serviceability Optimization for Trucks https://rip.trb.org/View/2265842 Thu, 19 Oct 2023 16:40:51 GMT https://rip.trb.org/View/2265842 Completing the Picture of Crashes: Understanding Data Needs and Opportunities for Road Safety https://rip.trb.org/View/2067969 Mon, 21 Nov 2022 16:26:14 GMT https://rip.trb.org/View/2067969 ADAS Crash Safety Analyses via OBMS Data https://rip.trb.org/View/2067967 Mon, 21 Nov 2022 16:26:13 GMT https://rip.trb.org/View/2067967 ACE Program: Testing and Demonstration Activities https://rip.trb.org/View/2062465 Tue, 15 Nov 2022 16:18:03 GMT https://rip.trb.org/View/2062465