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/ Seismic Analysis and Design of Retaining Walls, Buried Structures, Slopes, and Embankments https://rip.trb.org/View/2683238 Thu, 26 Mar 2026 14:22:28 GMT https://rip.trb.org/View/2683238 Resilience and sustainability of underground transportation infrastructure (UTI-UTC 32) https://rip.trb.org/View/2543425 Wed, 07 May 2025 17:14:39 GMT https://rip.trb.org/View/2543425 Advancement of Through-Tubing Casing Inspection for Underground Storage Wells https://rip.trb.org/View/2093164 Tue, 03 Jan 2023 13:53:30 GMT https://rip.trb.org/View/2093164 ORFEUS Obstacle Detection for Horizontal Directional Drilling https://rip.trb.org/View/2093158 Tue, 03 Jan 2023 13:53:27 GMT https://rip.trb.org/View/2093158 Detection of Buried Plastic Pipelines https://rip.trb.org/View/2093155 Tue, 03 Jan 2023 13:53:25 GMT https://rip.trb.org/View/2093155 Forced Resonance Imaging for 3-D Mapping of Buried Gas Pipes https://rip.trb.org/View/2093149 Tue, 03 Jan 2023 13:53:23 GMT https://rip.trb.org/View/2093149 Synthesis of Information Related to Highway Practices. Topic 52-05. Implementation of Subsurface Utility Engineering for Highway Design and Construction https://rip.trb.org/View/1707235 Tue, 19 May 2020 09:40:02 GMT https://rip.trb.org/View/1707235 Continuous automatic detection of cracks in tunnels using machine learning and artificial intelligence techniques for safety monitoring (UTI-UTC 06) https://rip.trb.org/View/1500813 Fri, 16 Feb 2018 19:32:38 GMT https://rip.trb.org/View/1500813 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 Seismic Assessment of Cut and Cover Tunnels https://rip.trb.org/View/1441863 Wed, 04 Jan 2017 10:54:54 GMT https://rip.trb.org/View/1441863 Development of Validated Methods for Soil-Structure Interaction Analysis of Buried Structures https://rip.trb.org/View/1441854 Wed, 04 Jan 2017 10:54:37 GMT https://rip.trb.org/View/1441854 Draining Identification Analysis and Mapping, Phase 2-NJIT https://rip.trb.org/View/1378073 Sun, 27 Dec 2015 12:17:55 GMT https://rip.trb.org/View/1378073 HG-5: Development and Deployment of Mix Designs for High Performance Concrete in Mass Underground https://rip.trb.org/View/1370867 Thu, 01 Oct 2015 16:10:00 GMT https://rip.trb.org/View/1370867 HG-2: Characterize Long-term Degredation of Buried Structural Elements https://rip.trb.org/View/1370865 Thu, 01 Oct 2015 15:44:42 GMT https://rip.trb.org/View/1370865 Condition Monitoring of Urban Infrastructure: Effects of Ground Movement on Adjacent Structures https://rip.trb.org/View/1236221 Thu, 03 Jan 2013 15:43:08 GMT https://rip.trb.org/View/1236221