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/ Fleet Turnover and Secondary Market Dynamics in U.S. Commercial Truck Markets https://rip.trb.org/View/2775678 Wed, 09 Sep 2026 15:35:46 GMT https://rip.trb.org/View/2775678 Designing Flexible Vehicle Efficiency Regulations for Light-Duty Vehicles https://rip.trb.org/View/2775563 Wed, 09 Sep 2026 15:23:32 GMT https://rip.trb.org/View/2775563 Drone-in-a-Box: Enhancing Public Safety and Environmental Monitoring on Cape Cod https://rip.trb.org/View/2775052 Fri, 04 Sep 2026 14:40:10 GMT https://rip.trb.org/View/2775052 Cost Recovery for New Entrant Aircraft Technologies https://rip.trb.org/View/2772541 Thu, 03 Sep 2026 08:27:06 GMT https://rip.trb.org/View/2772541 Synthesis of Information Related to Transit Practices. Topic SG-23. Data-Driven Approaches for Optimizing Transit Parts Procurement, Lead Time Risk, and Critical Spare Parts Planning https://rip.trb.org/View/2772554 Tue, 01 Sep 2026 17:16:59 GMT https://rip.trb.org/View/2772554 Department of Vehicle Regulation Fraud Identification and Mitigation Study https://rip.trb.org/View/2768420 Wed, 26 Aug 2026 17:04:26 GMT https://rip.trb.org/View/2768420 Micromobility Adoption, Ownership, and Use Patterns in the United States https://rip.trb.org/View/2767440 Wed, 26 Aug 2026 15:49:26 GMT https://rip.trb.org/View/2767440 Fusion Sensor Warning Light/Siren System For Follow Vehicles https://rip.trb.org/View/2767346 Tue, 25 Aug 2026 12:24:30 GMT https://rip.trb.org/View/2767346 Research Experience for Undergraduates (REU): Smart Cities Supplement Summer 2027 https://rip.trb.org/View/2762047 Wed, 19 Aug 2026 15:59:14 GMT https://rip.trb.org/View/2762047 Tools for Improving Visibility for Snow Plowing https://rip.trb.org/View/2762132 Wed, 19 Aug 2026 15:18:12 GMT https://rip.trb.org/View/2762132 Exploring Role-Based Human-Centered AI Alerts with Novel Wearable Sensors and Multi-Sensory Cues https://rip.trb.org/View/2762040 Wed, 19 Aug 2026 11:47:24 GMT https://rip.trb.org/View/2762040 LIFT: Localization-Informed Flight Trajectories for UAV Resilience against GPS Loss https://rip.trb.org/View/2762044 Wed, 19 Aug 2026 11:26:11 GMT https://rip.trb.org/View/2762044 Leveraging AI to Improve the Safety of Connected and Automated Vehicles in Winter Weather https://rip.trb.org/View/2762041 Wed, 19 Aug 2026 11:03:50 GMT https://rip.trb.org/View/2762041 Active-Inference Control and Sensor-Fusion Simulation for Bicycle Stabilization in Aging Rider Mobility Systems https://rip.trb.org/View/2762039 Wed, 19 Aug 2026 10:45:20 GMT https://rip.trb.org/View/2762039 Embedding Human-Understandable Symbolic Rules into Vision-Language Decision Systems for Safe, Transparent, and Ethical Autonomous Driving https://rip.trb.org/View/2762038 Wed, 19 Aug 2026 10:42:42 GMT https://rip.trb.org/View/2762038