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/ Photogrammetry and LiDAR-Based Precast Concrete Railroad Crossties Abrasion Damage Detections https://rip.trb.org/View/2314007 Sun, 24 Dec 2023 08:30:43 GMT https://rip.trb.org/View/2314007 Effect of Adjacent Poor Ties on Wood Crosstie Life https://rip.trb.org/View/1762969 Thu, 07 Jan 2021 23:28:49 GMT https://rip.trb.org/View/1762969 Energy Harvester Tie for Serving the Needs of the Railroad Industry to Access Electric Power in Remote Locations https://rip.trb.org/View/1762963 Thu, 07 Jan 2021 22:55:40 GMT https://rip.trb.org/View/1762963 Non-Propriety Ultra High-Performance Concrete for Ballast-Track High Speed Railroad Sleepers https://rip.trb.org/View/1602480 Sat, 27 Apr 2019 15:53:03 GMT https://rip.trb.org/View/1602480 Prevention of Stress-Induced Failures of Prestressed Concrete Crossties of the Railroad Track Structure (3.5) https://rip.trb.org/View/1590592 Tue, 05 Mar 2019 04:29:46 GMT https://rip.trb.org/View/1590592 Plastic Ties Safety Performance Evaluation https://rip.trb.org/View/1366937 Thu, 27 Aug 2015 09:09:34 GMT https://rip.trb.org/View/1366937 Ultrasonic Tomography for Infrastructure Inspection https://rip.trb.org/View/1313119 Thu, 19 Jun 2014 01:00:49 GMT https://rip.trb.org/View/1313119 Diffuse Ultrasound for Damage Detection in Concrete Railroad Ties https://rip.trb.org/View/1257014 100 kHz) approach will improve the detection of small-scale damage by using wavelengths that are shorter than those explored previously. The heterogeneous nature of concrete necessitates a statistical approach in order to extract quantitative information from the measurements. It is anticipated that the research will lead to new techniques for assessing damage in concrete ties. The proposed research also will have significant impact on the educational training of one graduate student in nondestructive evaluation techniques applied to essential infrastructure materials.]]> Wed, 24 Jul 2013 01:02:21 GMT https://rip.trb.org/View/1257014