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/ Highway Safety Manual Crash Prediction Models of Arterial Weaving Segments https://rip.trb.org/View/2712176 Tue, 09 Jun 2026 14:53:30 GMT https://rip.trb.org/View/2712176 The Effects of Street Repurposing on Pedestrian, Vehicle and Visitor Patterns https://rip.trb.org/View/2702858 Thu, 14 May 2026 15:19:11 GMT https://rip.trb.org/View/2702858 The Effects of Complete Streets Policies and Projects on Local Business Development and Growth in California https://rip.trb.org/View/2696848 Tue, 28 Apr 2026 11:07:56 GMT https://rip.trb.org/View/2696848 What Makes Complete Streets Projects Work? https://rip.trb.org/View/2690983 Thu, 09 Apr 2026 14:32:57 GMT https://rip.trb.org/View/2690983 Assessing the Impacts of Safety-Focused Design Interventions on Arterial Roadways https://rip.trb.org/View/2677552 Tue, 03 Mar 2026 20:07:45 GMT https://rip.trb.org/View/2677552 Designing Safer Streets https://rip.trb.org/View/2662686 Thu, 29 Jan 2026 16:30:17 GMT https://rip.trb.org/View/2662686 Making CAV Deployments Compatible with Complete Streets Objectives for Safe and Efficient Operations - Phase III https://rip.trb.org/View/2639855 Wed, 10 Dec 2025 16:12:36 GMT https://rip.trb.org/View/2639855 Comparing Safety Outcomes and Overcoming Implementation Barriers for Street Redesign Projects https://rip.trb.org/View/2625581 Tue, 18 Nov 2025 15:45:50 GMT https://rip.trb.org/View/2625581 Investigating Residential Road Speeding by Leveraging Connected Vehicle Data https://rip.trb.org/View/2606405 Thu, 02 Oct 2025 15:10:16 GMT https://rip.trb.org/View/2606405 Validation of HSM Crash Prediction Methods for Specific Intersection Types in Oregon https://rip.trb.org/View/2593954 Thu, 28 Aug 2025 12:53:55 GMT https://rip.trb.org/View/2593954 Rural Transportation Innovation and Mobilities Equity (RTIME) https://rip.trb.org/View/2586797 Wed, 13 Aug 2025 17:15:52 GMT https://rip.trb.org/View/2586797 Evaluation of Driver Speeds After Implementation of Speed Limit Reduction on Urban Streets https://rip.trb.org/View/2487333 Fri, 18 Jul 2025 10:39:17 GMT https://rip.trb.org/View/2487333 Speed Impacts on Complete Streets Elements, Phase II https://rip.trb.org/View/2487323 Fri, 18 Jul 2025 09:52:58 GMT https://rip.trb.org/View/2487323 Evaluation of the Effectiveness of Installed Wrong-Way Driving Countermeasures on Florida Freeways and Arterials https://rip.trb.org/View/2563982 Mon, 16 Jun 2025 09:21:07 GMT https://rip.trb.org/View/2563982 How Complete are Your City’s Streets? Evaluating the Completeness of Urban Streets Using Big Data and Computer Vision https://rip.trb.org/View/2553162 Thu, 15 May 2025 14:42:58 GMT https://rip.trb.org/View/2553162