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/ Biomarkers for Noise-Induced Sleep Deprivation https://rip.trb.org/View/2083614 Mon, 12 Dec 2022 14:04:04 GMT https://rip.trb.org/View/2083614 Quantifying Uncertainties in Predicting Aircraft Noise in Real-World Situations https://rip.trb.org/View/1549403 Fri, 21 Sep 2018 18:24:24 GMT https://rip.trb.org/View/1549403 Noise Reduction Analysis of Advanced Operational Procedures https://rip.trb.org/View/1549377 Fri, 21 Sep 2018 18:23:25 GMT https://rip.trb.org/View/1549377 Noise Emission and Propagation Modeling https://rip.trb.org/View/1549376 Fri, 21 Sep 2018 18:23:23 GMT https://rip.trb.org/View/1549376 Identification of Noise acceptance onset for noise certification standards of supersonic airplane _Project 41 https://rip.trb.org/View/1549369 Fri, 21 Sep 2018 18:22:53 GMT https://rip.trb.org/View/1549369 Cardiovascular Disease and Aircraft Noise Exposure https://rip.trb.org/View/1549357 Fri, 21 Sep 2018 18:22:28 GMT https://rip.trb.org/View/1549357 Acoustical Model for Mach Cut-off Flight https://rip.trb.org/View/1549345 Fri, 21 Sep 2018 18:22:03 GMT https://rip.trb.org/View/1549345 Quantifying uncertainties in predicting aircraft noise in real-world situations -Project 40 https://rip.trb.org/View/1532777 Fri, 17 Aug 2018 11:42:06 GMT https://rip.trb.org/View/1532777 Noise Power Distance Re-Evaluation _Project 43 https://rip.trb.org/View/1532773 Fri, 17 Aug 2018 11:41:58 GMT https://rip.trb.org/View/1532773 Acoustical Model of Mach Cut-off, ASCENT Project -42 https://rip.trb.org/View/1532769 Fri, 17 Aug 2018 11:41:50 GMT https://rip.trb.org/View/1532769 Pilot study on aircraft noise and sleep disturbance _Project 17 Continuation... https://rip.trb.org/View/1532758 Fri, 17 Aug 2018 11:41:29 GMT https://rip.trb.org/View/1532758 Techniques for Modifying NextGen Flight Track Design to Reduce Noise Exposure and Annoyance https://rip.trb.org/View/1528522 Tue, 31 Jul 2018 20:07:01 GMT https://rip.trb.org/View/1528522 ASCENT Project 43 - Noise Power Distance Re-Evaluation https://rip.trb.org/View/1507754 Wed, 04 Apr 2018 13:45:41 GMT https://rip.trb.org/View/1507754 ASCENT Project 42 - Acoustical Model of Mach Cut-off https://rip.trb.org/View/1507595 Mon, 02 Apr 2018 15:19:26 GMT https://rip.trb.org/View/1507595 ASCENT Project 41 - Identification of noise acceptance onset for noise certification standards of supersonic airplanes https://rip.trb.org/View/1507594 Mon, 02 Apr 2018 15:12:13 GMT https://rip.trb.org/View/1507594