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/ Investigation and Development of a MASH Test Level 6, Cost-Effective Barrier System for Containing Heavy Tractor Tank-Trailer Vehicles and Mitigating Catastrophic Crash Events – Phase V https://rip.trb.org/View/1942824 Wed, 27 Apr 2022 14:57:11 GMT https://rip.trb.org/View/1942824 Investigation and Development of a MASH Test Level 6, Cost-Effective Barrier System for Containing Heavy Tractor Tank-Trailer Vehicles and Mitigating Catastrophic Crash Events – Phase IV https://rip.trb.org/View/1887296 Fri, 22 Oct 2021 10:01:41 GMT https://rip.trb.org/View/1887296 Investigation and Development of a MASH Test Level 6, Cost-Effective Barrier System for Containing Heavy Tractor Tank-Trailer Vehicles and Mitigating Catastrophic Crash Events – Phase III https://rip.trb.org/View/1777949 Fri, 26 Feb 2021 11:16:14 GMT https://rip.trb.org/View/1777949 Evaluation of Concrete Models in LS-DYNA to Develop a MASH Test Level 6 (TL-6) Barrier System – Phase I https://rip.trb.org/View/1562291 Tue, 09 Oct 2018 19:25:55 GMT https://rip.trb.org/View/1562291