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/ RES2016-04: Evaluating Recycling Efficiency of Asphalt Plants https://rip.trb.org/View/1766776 Mon, 01 Feb 2021 11:30:57 GMT https://rip.trb.org/View/1766776 Interdisciplinary Study of Fuel Cell Technologies https://rip.trb.org/View/1230793 Thu, 03 Jan 2013 14:06:19 GMT https://rip.trb.org/View/1230793