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 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 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 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 Development of an arterial-based pedestrian exposure and crash risk model for North Carolina https://rip.trb.org/View/2536233 Fri, 11 Apr 2025 01:43:23 GMT https://rip.trb.org/View/2536233 Innovative Signal Timing Design and Operation Strategies to Improve Nighttime Arterial Safety https://rip.trb.org/View/2536079 Tue, 08 Apr 2025 12:57:25 GMT https://rip.trb.org/View/2536079 Artificial Intelligence (AI) Frameworks for Detecting Roadway Features Along Arterial Roadways from Planimetric Satellites Imagery Data https://rip.trb.org/View/2522024 Fri, 14 Mar 2025 13:41:09 GMT https://rip.trb.org/View/2522024 Evaluation of the Deployment of Arterial Service Patrol Program in Central Florida (Part 2) https://rip.trb.org/View/2448902 Tue, 05 Nov 2024 14:44:13 GMT https://rip.trb.org/View/2448902 Develop Countermeasures to Lower Operating Speeds and Collisions on Arterial Roadways, and Reduce Vulnerable User Injuries https://rip.trb.org/View/2437687 Thu, 03 Oct 2024 10:21:53 GMT https://rip.trb.org/View/2437687 Freeway and Arterial Performance and Safety Analysis with High Resolution Vehicle Trajectory Data https://rip.trb.org/View/2431597 Tue, 17 Sep 2024 17:43:12 GMT https://rip.trb.org/View/2431597 Integrated Management and Decision Support of Arterial Street Operations https://rip.trb.org/View/2397996 Wed, 26 Jun 2024 07:38:20 GMT https://rip.trb.org/View/2397996 Strategies for Transportation System Management and Operational Enhancement of Arterial Roadways https://rip.trb.org/View/2366296 Mon, 03 Jun 2024 14:40:55 GMT https://rip.trb.org/View/2366296 Assessing the Effectiveness of Bicycle Infrastructure Treatments through a Large-Scale Trajectories collected with Drones https://rip.trb.org/View/2325391 Fri, 19 Jan 2024 10:43:37 GMT https://rip.trb.org/View/2325391 Design and evaluation of an Arterial-Friendly Local Ramp Metering System https://rip.trb.org/View/2250737 Thu, 21 Sep 2023 14:59:55 GMT https://rip.trb.org/View/2250737 NMDOT Pedestrian Safety on Arterials https://rip.trb.org/View/2231970 Sun, 20 Aug 2023 15:28:51 GMT https://rip.trb.org/View/2231970