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/ Colorado Traffic and Animal Detection (COTAD) Model - Training the YOLO algorithm to Reliably Detect Colorado Wildlife, Pedestrians, and Vehicles https://rip.trb.org/View/2643439 Tue, 23 Dec 2025 13:50:23 GMT https://rip.trb.org/View/2643439 Size of Regulatory and Warning Signs https://rip.trb.org/View/2558385 Wed, 28 May 2025 14:05:40 GMT https://rip.trb.org/View/2558385 Evaluation of Post Mounted Delineators and Curve Warning Message Markings https://rip.trb.org/View/2219413 Wed, 26 Jul 2023 08:38:49 GMT https://rip.trb.org/View/2219413 Watch Out for CityLYNX! Be Streetcar Smart https://rip.trb.org/View/2096560 Fri, 13 Jan 2023 14:49:10 GMT https://rip.trb.org/View/2096560 Improve the effectiveness of safety countermeasures as well as tools that promote operational efficiency https://rip.trb.org/View/2071569 Mon, 28 Nov 2022 14:20:07 GMT https://rip.trb.org/View/2071569 LED Applications on Traffic Control Devices https://rip.trb.org/View/1957081 Fri, 27 May 2022 11:23:28 GMT https://rip.trb.org/View/1957081 Prototyping and Field Testing of a Demand-responsive Rumble Strip Mechanism https://rip.trb.org/View/1464482 Thu, 13 Apr 2017 16:41:34 GMT https://rip.trb.org/View/1464482 Understanding Contributing Factors to Wrong-way Crashes and Evaluating the Effectiveness of Countermeasures in Reducing Wrong-way Crash Risk of Older Drivers https://rip.trb.org/View/1414801 Fri, 01 Jul 2016 11:54:10 GMT https://rip.trb.org/View/1414801 Warning Sign Legends for Emergency Incidents https://rip.trb.org/View/1370724 Tue, 29 Sep 2015 15:29:20 GMT https://rip.trb.org/View/1370724 Improving Highway Work Zone Safety https://rip.trb.org/View/1228380 Thu, 03 Jan 2013 13:19:57 GMT https://rip.trb.org/View/1228380