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/ Investigation of Piezoelectric and Other Advanced Sensors in Concrete https://rip.trb.org/View/2398090 Fri, 28 Jun 2024 09:18:35 GMT https://rip.trb.org/View/2398090 Real-time Monitoring of Concrete Strength to Determine Optimal Traffic Opening Time https://rip.trb.org/View/1762344 Wed, 06 Jan 2021 16:57:11 GMT https://rip.trb.org/View/1762344 SPR-4513: Determining Optimal Traffic Opening Time through Concrete Strength Monitoring – Wireless Sensing https://rip.trb.org/View/1718347 Mon, 06 Jul 2020 08:59:48 GMT https://rip.trb.org/View/1718347 Development of a Self-Powered Weigh-In-Motion (WIM) System https://rip.trb.org/View/1644427 Thu, 08 Aug 2019 08:01:07 GMT https://rip.trb.org/View/1644427 Kinetic-to-Electric Energy Conversion (KEEC) https://rip.trb.org/View/1365860 Sat, 15 Aug 2015 01:00:53 GMT https://rip.trb.org/View/1365860 Broadband Hybrid Electromagnetic and Piezoelectric Energy Harvesting from Ambient Vibrations and Pneumatic Vortices Induced by Running Subway Trains https://rip.trb.org/View/1347213 Wed, 25 Mar 2015 01:01:12 GMT https://rip.trb.org/View/1347213