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/ Integrated Acoustic and Human-Centered Development and Digital Twin Testing for Rail Noise Abatement Strategies in Ohio https://rip.trb.org/View/2712240 Tue, 09 Jun 2026 10:55:57 GMT https://rip.trb.org/View/2712240 Railway Noise Abatement Strategies: State of the Art and Applicability for Ohio Corridors https://rip.trb.org/View/2712239 Tue, 09 Jun 2026 10:26:02 GMT https://rip.trb.org/View/2712239 Damage Progression of Highway Bridges and Operational Vibration-Waveforms https://rip.trb.org/View/2627353 Wed, 19 Nov 2025 14:42:07 GMT https://rip.trb.org/View/2627353 A Novel Constrained Layer Damper for Wind-Induced Vibration Mitigation of High-Mast Illumination Poles https://rip.trb.org/View/2505729 Mon, 03 Feb 2025 22:13:46 GMT https://rip.trb.org/View/2505729 Producing DynaSignal: A Novel Aerodynamic Solution for Traffic Signal Lights to Mitigate Large Vibrations and Fatigue-Related Issues in Structural Supports of Traffic Signals https://rip.trb.org/View/2046773 Mon, 17 Oct 2022 22:05:52 GMT https://rip.trb.org/View/2046773 Mitigation of Transportation Induced Vibration Using Seismic Metamaterials https://rip.trb.org/View/1420900 Thu, 25 Aug 2016 15:13:31 GMT https://rip.trb.org/View/1420900 Evaluating the Effectiveness of Vibration-Mitigation Devices for Structural Supports of Signs, Luminaires, and Traffic Signals https://rip.trb.org/View/1364352 Fri, 07 Aug 2015 01:01:31 GMT https://rip.trb.org/View/1364352