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/ 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 Impact of Leading Pedestrian Intervals on All Users https://rip.trb.org/View/2608462 Mon, 13 Oct 2025 17:38:46 GMT https://rip.trb.org/View/2608462 Impact of Turning Radius on Vehicle Speeds and Pedestrian Crossing Safety on Urban Unsignalized Intersections Using Virtual Reality https://rip.trb.org/View/1853635 Mon, 24 May 2021 11:39:15 GMT https://rip.trb.org/View/1853635 Creating a Situation-aware Sensing Environment for Cyclists: An Innovative and Cost-effective Smartphone-based Approach https://rip.trb.org/View/1756017 Sat, 05 Dec 2020 18:16:08 GMT https://rip.trb.org/View/1756017 Right-turn Traffic Volume Adjustment in Traffic Signal Warrant Analysis https://rip.trb.org/View/1412297 Tue, 21 Jun 2016 07:57:25 GMT https://rip.trb.org/View/1412297