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/ Sensor-informed Generative Digital Twin: High-fidelity Simulation for Sustainable Transportation and Policy Validation https://rip.trb.org/View/2691669 Sun, 12 Apr 2026 23:41:20 GMT https://rip.trb.org/View/2691669 Enabling Mobility for Older Adults in the US https://rip.trb.org/View/2669552 Thu, 12 Feb 2026 15:16:36 GMT https://rip.trb.org/View/2669552 Impact of Passing Lane Guidance through Angled Markings on Two-Lane Rural Highways https://rip.trb.org/View/2655580 Thu, 15 Jan 2026 13:01:45 GMT https://rip.trb.org/View/2655580 Impact of Double Centerline Rumble Strips (CLRS) on Driver Behavior https://rip.trb.org/View/2655579 Thu, 15 Jan 2026 12:52:34 GMT https://rip.trb.org/View/2655579 Healthy Micromobility: Moving From Crisis to Opportunity https://rip.trb.org/View/2652680 Tue, 13 Jan 2026 16:27:45 GMT https://rip.trb.org/View/2652680 Measuring and Modeling Safety & Congestion Impacts of Double Parking https://rip.trb.org/View/2643032 Thu, 18 Dec 2025 15:01:49 GMT https://rip.trb.org/View/2643032 Deskilling or Redefining? Drivers’ Hazard Anticipation with Automation https://rip.trb.org/View/2643018 Thu, 18 Dec 2025 14:13:07 GMT https://rip.trb.org/View/2643018 SAFE Schools For Safer Future https://rip.trb.org/View/2628212 Fri, 21 Nov 2025 14:27:17 GMT https://rip.trb.org/View/2628212 ELDER-3: Empowering Lifelong Driving Experiences with SAE Level 3 Automation https://rip.trb.org/View/2628204 Fri, 21 Nov 2025 14:20:28 GMT https://rip.trb.org/View/2628204 Identifying Harsh Driving Behaviors and Contributing Factors Using Telematics Data: A Case Study in Oakland and Fresno, California https://rip.trb.org/View/2625583 Tue, 18 Nov 2025 15:33:53 GMT https://rip.trb.org/View/2625583 Are Automonous Vehicles Safer Drivers than Humans? Comparing performance in San Francisco https://rip.trb.org/View/2625584 Tue, 18 Nov 2025 15:14:24 GMT https://rip.trb.org/View/2625584 Exploring the Influence of Tinted Windows and Other in-vehicle Distractions on Driver Detection of Pedestrians and Bicyclists https://rip.trb.org/View/2625589 Mon, 17 Nov 2025 16:54:20 GMT https://rip.trb.org/View/2625589 Benefit-Cost Methodology for Behavioral Highway Safety Countermeasures https://rip.trb.org/View/2611416 Tue, 21 Oct 2025 15:51:19 GMT https://rip.trb.org/View/2611416 A Novel Red Light Running Warning System Using Connected v2i Technology, Phase 2: Driver Testing on Public Roads https://rip.trb.org/View/2487386 Wed, 08 Oct 2025 10:16:06 GMT https://rip.trb.org/View/2487386 Quantifying the Influence of Driver Behavior on Greenhouse Gas Emissions and Air Quality https://rip.trb.org/View/2606557 Fri, 03 Oct 2025 15:02:52 GMT https://rip.trb.org/View/2606557