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/ Traffic Noise Model (TNM) Version 3.0 Adjustment https://rip.trb.org/View/1513049 Fri, 18 May 2018 13:36:07 GMT https://rip.trb.org/View/1513049 National Cooperative Highway Research Program (NCHRP); Special Studies, Reviews, Conferences, and Special Projects https://rip.trb.org/View/1415608 Wed, 06 Jul 2016 13:34:36 GMT https://rip.trb.org/View/1415608 FHWA Traffic Noise Model: Version 3.0 Software Development https://rip.trb.org/View/1302747 Sat, 22 Mar 2014 01:01:29 GMT https://rip.trb.org/View/1302747 Highway Traffic Noise Prediction and Analysis Fiscal Year 2012 through Fiscal Year 2015 Federal Aid to Highway Tasks https://rip.trb.org/View/1234790 Thu, 03 Jan 2013 15:19:23 GMT https://rip.trb.org/View/1234790