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/ Evaluation of Cement-Based Pavement Markings https://rip.trb.org/View/2689760 Wed, 08 Apr 2026 09:40:12 GMT https://rip.trb.org/View/2689760 In-Situ Monitoring of Concrete Early Age Strength Development Through Acoustic Resonance Technologies https://rip.trb.org/View/2689759 Wed, 08 Apr 2026 09:37:19 GMT https://rip.trb.org/View/2689759 Statistical Evaluation of Illinois Modified AASHTO T161 Freeze–Thaw Testing Following Laboratory Relocation https://rip.trb.org/View/2686616 Wed, 01 Apr 2026 09:41:33 GMT https://rip.trb.org/View/2686616 National Road Research Alliance (Phase-3) https://rip.trb.org/View/2678150 Fri, 06 Mar 2026 13:10:59 GMT https://rip.trb.org/View/2678150 Modernization and Web-Based Implementation of the Illinois Pavement Feedback System https://rip.trb.org/View/2677555 Wed, 04 Mar 2026 09:22:25 GMT https://rip.trb.org/View/2677555 Ladle Furnace Slag Properties When Blended with Dolomitic Underutilized Quarry Materials https://rip.trb.org/View/2677554 Wed, 04 Mar 2026 09:16:47 GMT https://rip.trb.org/View/2677554 Cone Penetration Test Correlations for Missouri Soils https://rip.trb.org/View/2673279 Tue, 24 Feb 2026 15:30:33 GMT https://rip.trb.org/View/2673279 MIT-Dowel-Scan Pilot Implementation https://rip.trb.org/View/2673060 Tue, 24 Feb 2026 15:05:02 GMT https://rip.trb.org/View/2673060 Pavement Surface Properties Consortium Phase IV - Improving Safety and Saving Lives through Pavement Surface Optimization https://rip.trb.org/View/2672598 Thu, 19 Feb 2026 18:59:56 GMT https://rip.trb.org/View/2672598 Field Friction Testing https://rip.trb.org/View/2672003 Wed, 18 Feb 2026 14:27:59 GMT https://rip.trb.org/View/2672003 Use of FTIR Analysis to Verify Chemical Composition of Asphalt Binder https://rip.trb.org/View/2672002 Wed, 18 Feb 2026 14:25:03 GMT https://rip.trb.org/View/2672002 Quantitative Evaluation of Select Materials in Subgrade Alternatives https://rip.trb.org/View/2671990 Wed, 18 Feb 2026 11:37:12 GMT https://rip.trb.org/View/2671990 Hydraulic Conductivity of Base Course Material, Pavement Drainage, and Relation to Pavement Buckling https://rip.trb.org/View/2671989 Wed, 18 Feb 2026 11:35:36 GMT https://rip.trb.org/View/2671989 Evaluation of Ride Quality and Tining/Finishing Practices for Concrete Pavements https://rip.trb.org/View/2671982 Wed, 18 Feb 2026 11:18:56 GMT https://rip.trb.org/View/2671982 Evaluation of Hamburg Wheel Tracking Test (HWTT) for Rutting Resistance Assessment https://rip.trb.org/View/2671980 Wed, 18 Feb 2026 11:14:14 GMT https://rip.trb.org/View/2671980