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/ Evaluation of Large Truck Parameter Requirements For Crash Testing https://rip.trb.org/View/2712181 Tue, 09 Jun 2026 15:16:30 GMT https://rip.trb.org/View/2712181 Advancing MASH Roadside Safety Design Standards (Year 4) https://rip.trb.org/View/2703690 Fri, 15 May 2026 14:30:53 GMT https://rip.trb.org/View/2703690 Develop and Evaluate Long Median Barrier Gate to Assist with Emergency Response https://rip.trb.org/View/2636104 Mon, 08 Dec 2025 09:44:38 GMT https://rip.trb.org/View/2636104 Advancement of Gender Equity in Transportation Safety, Design, Development, and Evaluation of Roadside Safety Hardware – Phase II https://rip.trb.org/View/2627342 Wed, 19 Nov 2025 14:50:30 GMT https://rip.trb.org/View/2627342 Evaluating the Influence of Vehicle Active Safety Technologies on Roadway Departures https://rip.trb.org/View/2558379 Thu, 29 May 2025 12:38:47 GMT https://rip.trb.org/View/2558379 Traversable Postconstruction Stormwater Check Dams in Clear Zones https://rip.trb.org/View/2558390 Wed, 28 May 2025 13:28:45 GMT https://rip.trb.org/View/2558390 Impact Evaluation for Obstacles within Barrier's Working Width https://rip.trb.org/View/2558421 Mon, 26 May 2025 21:48:15 GMT https://rip.trb.org/View/2558421 Device to Optimize Crashworthiness of Breakaway Sign Support System to Meet AASHTO MASH https://rip.trb.org/View/2505728 Mon, 03 Feb 2025 22:23:45 GMT https://rip.trb.org/View/2505728 Application of MASH Test Criteria to Breakaway Sign and Luminaire Supports and Crashworthy Work Zone Traffic Control Devices https://rip.trb.org/View/2433905 Mon, 23 Sep 2024 17:40:19 GMT https://rip.trb.org/View/2433905 Conduct MASH Test Level 3 (TL-3) Evaluations of Concrete Barriers on Roadside Slopes https://rip.trb.org/View/2420100 Fri, 23 Aug 2024 12:30:34 GMT https://rip.trb.org/View/2420100 Redesign of Innovative Gate Arms (Ramp Closure Gate) – Phase I https://rip.trb.org/View/2398089 Fri, 28 Jun 2024 09:09:47 GMT https://rip.trb.org/View/2398089 Midwest Roadside Safety Pooled Fund Program (FY25-FY29) https://rip.trb.org/View/2394498 Tue, 18 Jun 2024 15:47:01 GMT https://rip.trb.org/View/2394498 Investigation and Validation of V-Ditch Traversability Related to Crash Testing Cable Barrier Systems https://rip.trb.org/View/2381739 Wed, 22 May 2024 11:49:24 GMT https://rip.trb.org/View/2381739 Development of Critical Impact Point and Impact Angle Guidance for the Manual for Assessing Safety Hardware (MASH) https://rip.trb.org/View/2381727 Tue, 21 May 2024 16:42:58 GMT https://rip.trb.org/View/2381727 Method for Using ISPEs in Crash-Testing Protocols https://rip.trb.org/View/2381712 Tue, 21 May 2024 15:29:37 GMT https://rip.trb.org/View/2381712