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/ Cost-Benefit Analysis of Preemptive Weather-Related Road Closures https://rip.trb.org/View/2689390 Tue, 02 Jun 2026 12:24:05 GMT https://rip.trb.org/View/2689390 Enhancement of Traffic Control Tool for Reopening of Flooded Roadways https://rip.trb.org/View/2384730 Mon, 03 Jun 2024 14:23:02 GMT https://rip.trb.org/View/2384730 Modeling Drivers’ En-route Diversion Behavior During Congestion: A Pilot Study https://rip.trb.org/View/2347372 Thu, 29 Feb 2024 19:26:03 GMT https://rip.trb.org/View/2347372 SPR-4542: Alternative Strategies for Roadway Work Zone Safety and Productivity https://rip.trb.org/View/1726015 Wed, 05 Aug 2020 14:58:47 GMT https://rip.trb.org/View/1726015 How do Commuters React to a Temporary Freeway Closure? An Evaluation of the Fix I-5 Project in Sacramento, California https://rip.trb.org/View/1236264 Thu, 03 Jan 2013 15:43:59 GMT https://rip.trb.org/View/1236264