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/ Down-the-Hole Drilling Acoustic Research https://rip.trb.org/View/2190088 Fri, 02 Jun 2023 20:10:19 GMT https://rip.trb.org/View/2190088 Acoustic Effectiveness of Vinyl Fence Noise Walls https://rip.trb.org/View/1762184 Wed, 06 Jan 2021 11:45:43 GMT https://rip.trb.org/View/1762184 Addressing Truck Emissions and Noise at Truck Freight Bottlenecks https://rip.trb.org/View/1758952 Tue, 22 Dec 2020 16:40:11 GMT https://rip.trb.org/View/1758952 ASCENT Project 23 - Analytical Approach for Quantifying Noise from Advanced Operational Procedures https://rip.trb.org/View/1502045 Tue, 13 Feb 2018 13:36:51 GMT https://rip.trb.org/View/1502045 Project 38 - Whole House Noise Reduction Modeling https://rip.trb.org/View/1369236 Thu, 17 Sep 2015 15:17:02 GMT https://rip.trb.org/View/1369236 Project 38 - Whole House Noise Reduction Modeling https://rip.trb.org/View/1364648 Tue, 11 Aug 2015 01:00:29 GMT https://rip.trb.org/View/1364648 Noise-Beyond 65 Studies https://rip.trb.org/View/1364496 Sat, 08 Aug 2015 01:02:08 GMT https://rip.trb.org/View/1364496