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/ Enhancing Transportation Safety through Moisture Control Using Wicking Geotextiles in Pavement Systems https://rip.trb.org/View/2703923 Wed, 20 May 2026 09:19:26 GMT https://rip.trb.org/View/2703923 Remediating Disproportionate Approach Slab Settlements in Kansas Integral Bridges https://rip.trb.org/View/1902213 Fri, 07 Jan 2022 12:26:34 GMT https://rip.trb.org/View/1902213 Impact of Soil Stiffness on the Performance of Crash Testing and Roadside Safety https://rip.trb.org/View/1707181 Thu, 21 May 2020 10:29:07 GMT https://rip.trb.org/View/1707181 Update the Pile Design by CPT Software to Incorporate Newly Developed Pile-CPT Methods and Other Design Features https://rip.trb.org/View/1464356 Wed, 12 Apr 2017 10:51:54 GMT https://rip.trb.org/View/1464356 Seismic Assessment of Cut and Cover Tunnels - Large Scale Tests https://rip.trb.org/View/1441864 Wed, 04 Jan 2017 10:54:56 GMT https://rip.trb.org/View/1441864 SPR-4108: Development of Comprehensive CPT-Based Geotechnical Design Manual for Indiana Transportation Infrastructure https://rip.trb.org/View/1428931 Thu, 03 Nov 2016 15:56:53 GMT https://rip.trb.org/View/1428931 Characterization and Modeling of Photon Absorption in Asphalt Materials for Improved Accuracy and Consistency of Nuclear Density Measurement https://rip.trb.org/View/1356625 Fri, 05 Jun 2015 01:00:49 GMT https://rip.trb.org/View/1356625 Rapid Determination of Unsaturated Moisture Diffusivity for Soils During the Frost Heave https://rip.trb.org/View/1256241 Thu, 11 Jul 2013 01:00:30 GMT https://rip.trb.org/View/1256241 Development of Soil Stabilization Technical Advisory Guide https://rip.trb.org/View/1234325 Thu, 03 Jan 2013 15:10:31 GMT https://rip.trb.org/View/1234325