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/ Roadmap for Virtual Traffic Light Control at Intersections Using Connectivity, AI and Digital Twins https://rip.trb.org/View/2786712 Mon, 05 Oct 2026 13:32:38 GMT https://rip.trb.org/View/2786712 Impacts of Left-Turn Traffic Signal Phasing Strategies on Safety Outcomes https://rip.trb.org/View/2762048 Wed, 19 Aug 2026 16:02:53 GMT https://rip.trb.org/View/2762048 Observational Intersection Traffic Safety Analysis II: Vision-Based Surrogate Safety Analysis https://rip.trb.org/View/2762043 Wed, 19 Aug 2026 11:52:42 GMT https://rip.trb.org/View/2762043 Development of a CAV Testbed-enhanced Smart Campus at Morgan State University – Phase IV: Smart Corridor Expansion and Data-Driven Intersection Safety Monitoring https://rip.trb.org/View/2742148 Sat, 01 Aug 2026 10:38:06 GMT https://rip.trb.org/View/2742148 Enhancing Traffic Signal Controller Performance using LiDAR data. https://rip.trb.org/View/2742142 Sat, 01 Aug 2026 09:50:21 GMT https://rip.trb.org/View/2742142 Portable Tool for Periodic Evaluations of Intersection Signal Timings https://rip.trb.org/View/2725460 Wed, 08 Jul 2026 16:36:22 GMT https://rip.trb.org/View/2725460 Developing Guidelines for Right-Turn Lane Pockets for Intersections in Nevada https://rip.trb.org/View/2713605 Thu, 11 Jun 2026 14:33:30 GMT https://rip.trb.org/View/2713605 Guidance for Selecting Pedestrian Safety Treatments at Signalized Intersections to Address Permitted Turn Conflicts https://rip.trb.org/View/2712202 Wed, 10 Jun 2026 11:11:14 GMT https://rip.trb.org/View/2712202 Use of Bicycle Signal Faces in Applications with Concurrent Turning Traffic https://rip.trb.org/View/2709246 Tue, 02 Jun 2026 14:44:11 GMT https://rip.trb.org/View/2709246 Real-Time Anomaly Detection System for Signalized Intersections https://rip.trb.org/View/2673038 Tue, 24 Feb 2026 10:25:57 GMT https://rip.trb.org/View/2673038 Crash Analysis at Intersections with Transit Signal Priority https://rip.trb.org/View/2643022 Thu, 18 Dec 2025 14:02:39 GMT https://rip.trb.org/View/2643022 Develop and Test Optimal Speed Control Strategies for Connected and Automated Vehicles under GPS Jamming and Spoofing https://rip.trb.org/View/2640714 Tue, 16 Dec 2025 15:20:10 GMT https://rip.trb.org/View/2640714 AI Powered Conflict Detection and Signal Optimization for Right Turn FYAs in Mixed Modal Intersections https://rip.trb.org/View/2640185 Thu, 11 Dec 2025 13:35:20 GMT https://rip.trb.org/View/2640185 Developing Guidance for Calculating the Downstream Functional Area of an Intersection https://rip.trb.org/View/2628203 Thu, 20 Nov 2025 08:48:03 GMT https://rip.trb.org/View/2628203 Pedestrian Crashes at High-Speed Intersections: Applying AI for Crash Narrative Analysis to Identify Common and Edge Cases https://rip.trb.org/View/2625591 Mon, 17 Nov 2025 16:29:12 GMT https://rip.trb.org/View/2625591