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/ Managing PFAS-Impacted Construction Materials at Airports https://rip.trb.org/View/2772550 Wed, 02 Sep 2026 16:45:40 GMT https://rip.trb.org/View/2772550 E-Ticketing Technologies for Efficient Asphalt Ticket Collection and Quantity Calculation https://rip.trb.org/View/2596426 Wed, 03 Sep 2025 12:57:13 GMT https://rip.trb.org/View/2596426 ITD-Controlled Aggregate Material Source Modernization Project https://rip.trb.org/View/2298713 Wed, 29 Nov 2023 13:29:20 GMT https://rip.trb.org/View/2298713 Field Evaluation of E-Ticketing Technologies for Efficient Asphalt Delivery Ticket Collection and Quantity Calculation https://rip.trb.org/View/1904960 Thu, 20 Jan 2022 14:41:58 GMT https://rip.trb.org/View/1904960 SPR-4353: Central HMA Acceptance Lab Process Improvement Project https://rip.trb.org/View/1592205 Wed, 13 Mar 2019 15:28:20 GMT https://rip.trb.org/View/1592205