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/ Subsurface Analysis Planning Tool for Cost Reduction, Rapid Emergency Evaluation, And Data Support for Rural Service Areas https://rip.trb.org/View/2726188 Wed, 08 Jul 2026 17:34:58 GMT https://rip.trb.org/View/2726188 Guide for Roadway Material Designs for Public At-Grade Highway-Railroad Crossings https://rip.trb.org/View/2558368 Mon, 26 May 2025 22:53:48 GMT https://rip.trb.org/View/2558368 Multi-Criteria decision-making approach for Building Resilient and Sustainable Transportation Infrastructure https://rip.trb.org/View/1597877 Sat, 06 Apr 2019 19:39:02 GMT https://rip.trb.org/View/1597877 In-situ Scour Testing Device https://rip.trb.org/View/1358562 Tue, 23 Jun 2015 01:02:32 GMT https://rip.trb.org/View/1358562 Mapping Subsurface in Proximity to Newly-Developed Sinkhole Along Roadway https://rip.trb.org/View/1253629 Wed, 26 Jun 2013 01:00:21 GMT https://rip.trb.org/View/1253629 Determination of Optimum "Multi-channel Surface Wave Method" Field Parameters https://rip.trb.org/View/1239471 Fri, 01 Feb 2013 01:15:57 GMT https://rip.trb.org/View/1239471