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/ NextGen Human Factors of Head-Worn Displays for Civil Aviation https://rip.trb.org/View/2434117 Thu, 26 Sep 2024 14:59:06 GMT https://rip.trb.org/View/2434117 Feasibility of UAM Vertiport Land Use and Location Planning https://rip.trb.org/View/2286654 Mon, 06 Nov 2023 17:13:09 GMT https://rip.trb.org/View/2286654 Vertiport Systems Integration and Location Assessment https://rip.trb.org/View/2286651 Mon, 06 Nov 2023 16:39:38 GMT https://rip.trb.org/View/2286651 Develop Airfield Design Guidelines for Large Unmanned Aerial Systems (UAS) https://rip.trb.org/View/1645874 Mon, 12 Aug 2019 21:31:11 GMT https://rip.trb.org/View/1645874 Advancing the Practice of State Aviation System Planning https://rip.trb.org/View/1478089 Mon, 31 Jul 2017 11:16:27 GMT https://rip.trb.org/View/1478089 Dissemination of ACRP Research Results https://rip.trb.org/View/1406519 Wed, 04 May 2016 13:13:58 GMT https://rip.trb.org/View/1406519 Alternative Aviation Fuels Fire Safety https://rip.trb.org/View/1392188 Tue, 19 Jan 2016 16:02:55 GMT https://rip.trb.org/View/1392188 TAF Forecast Improvements https://rip.trb.org/View/1369329 Fri, 18 Sep 2015 15:49:07 GMT https://rip.trb.org/View/1369329 Sustainability FAA Greening Initiative https://rip.trb.org/View/1369312 Fri, 18 Sep 2015 15:39:42 GMT https://rip.trb.org/View/1369312 Project 47 - Alternative Jet Fuel https://rip.trb.org/View/1369247 Thu, 17 Sep 2015 16:55:31 GMT https://rip.trb.org/View/1369247 Project 46 - Aviation System Global Climate Performance Analysis https://rip.trb.org/View/1369245 Thu, 17 Sep 2015 16:51:32 GMT https://rip.trb.org/View/1369245 Project 45 - NAS Wide - Aviation System Air Quality Performance Analysis https://rip.trb.org/View/1369244 Thu, 17 Sep 2015 16:46:04 GMT https://rip.trb.org/View/1369244 Project 45 - Development of Aviation Air Quality Tool https://rip.trb.org/View/1369243 Thu, 17 Sep 2015 16:38:41 GMT https://rip.trb.org/View/1369243 Project 45 - D2025 Health Impacts Modeling & Analysis-A/Q-CMAQ DDM-3D/PM/Airport Specific Impact Assessment https://rip.trb.org/View/1369242 Thu, 17 Sep 2015 16:28:47 GMT https://rip.trb.org/View/1369242 Project 45 - Aviation System Air Quality Performance Analysis https://rip.trb.org/View/1369241 Thu, 17 Sep 2015 16:17:04 GMT https://rip.trb.org/View/1369241