Research in Progress (RIP) https://rip.trb.org/ en-us Copyright © 2024. 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/ West-Wide Assessment of Cost-Effective Opportunities for Mitigating Wildlife Vehicle Collisions https://rip.trb.org/View/2023436 Thu, 15 Sep 2022 14:23:27 GMT https://rip.trb.org/View/2023436 RES2013-35: Enhance and Improve Rating Aids for the Evaluation of Existing Concrete Box/Slab Culverts https://rip.trb.org/View/1632275 Mon, 24 Jun 2019 14:21:31 GMT https://rip.trb.org/View/1632275 Identifying Culvert Design Parameters that Correlate with Fish Passage Success https://rip.trb.org/View/1256824 Sat, 20 Jul 2013 01:01:04 GMT https://rip.trb.org/View/1256824