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/ Improving Design and Construction of Transportation Infrastructure through Bedrock Characterization https://rip.trb.org/View/1715321 Thu, 18 Jun 2020 14:12:27 GMT https://rip.trb.org/View/1715321 Development of General Guidelines on The Effects of Bridge Span Range and Skew Angle Range on Integral Abutment Bridges (IABs) (3.7) https://rip.trb.org/View/1638201 Wed, 17 Jul 2019 11:31:34 GMT https://rip.trb.org/View/1638201 Geologic Hazards Mapping: Identifying Sinkholes and Karst Susceptible Areas in Worth, Cerro Gordo, Mitchell, and Floyd Counties HR-3018 https://rip.trb.org/View/1603749 Fri, 03 May 2019 10:11:34 GMT https://rip.trb.org/View/1603749 Geophysical Characterization of Tunnel Construction Site, Louisville, Kentucky https://rip.trb.org/View/1231033 Thu, 03 Jan 2013 14:10:51 GMT https://rip.trb.org/View/1231033 Development of Three-Dimensional, Full Wave Field Seismic Imaging Technology for Transportation Infrastructure Projects https://rip.trb.org/View/1228261 Thu, 03 Jan 2013 13:17:37 GMT https://rip.trb.org/View/1228261