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/ Centers of Excellence: Advanced Air Mobility (AAM) and Unmanned Aircraft Systems (UAS) https://rip.trb.org/View/2614523 Tue, 28 Oct 2025 14:37:08 GMT https://rip.trb.org/View/2614523 RES2021-15: University Transportation Center (UTC): Match Funds https://rip.trb.org/View/1886086 Mon, 18 Oct 2021 09:30:27 GMT https://rip.trb.org/View/1886086