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 Large Truck Parameter Requirements For Crash Testing https://rip.trb.org/View/2712181 Tue, 09 Jun 2026 15:16:30 GMT https://rip.trb.org/View/2712181 Development of a Materials Sampling and Testing Safety Guide https://rip.trb.org/View/2709245 Tue, 02 Jun 2026 15:00:57 GMT https://rip.trb.org/View/2709245 Determination of Test Methods to Quantify the Effects of Organic and Inorganic Constituents in Silica Sand Used for Construction https://rip.trb.org/View/2698276 Fri, 01 May 2026 07:34:22 GMT https://rip.trb.org/View/2698276 Multiscale Understanding of Pervious Concrete Using Digital Packing and Automated Permeability Testing https://rip.trb.org/View/2696018 Thu, 23 Apr 2026 17:09:56 GMT https://rip.trb.org/View/2696018 Passenger Evacuation Experience https://rip.trb.org/View/2694524 Wed, 22 Apr 2026 10:30:31 GMT https://rip.trb.org/View/2694524 Naïve Subject Testing – Suite Emergency Passage Features https://rip.trb.org/View/2686617 Wed, 01 Apr 2026 10:17:47 GMT https://rip.trb.org/View/2686617 Mixed Virtual Reality as an Aid in Advancing the Reliability and Robustness of Connected and Automated Vehicle Applications https://rip.trb.org/View/2675998 Mon, 02 Mar 2026 18:57:53 GMT https://rip.trb.org/View/2675998 Improved VDOT Bioretention Media Specification https://rip.trb.org/View/2672501 Thu, 19 Feb 2026 10:50:44 GMT https://rip.trb.org/View/2672501 Comparison of Sample Size and Curing time on Concrete Performance https://rip.trb.org/View/2672004 Wed, 18 Feb 2026 14:28:52 GMT https://rip.trb.org/View/2672004 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 Design and Testing of High-Load Multi-Rotational Disc Bearings for Bridges https://rip.trb.org/View/2669883 Mon, 16 Feb 2026 18:46:02 GMT https://rip.trb.org/View/2669883 Testing Sand-Lightweight Concrete Bridge Deck Members Reinforced with Glass FRP Bars: Phase I https://rip.trb.org/View/2652545 Tue, 13 Jan 2026 15:59:44 GMT https://rip.trb.org/View/2652545 Integrating MBA, PIRS, and DSR Testing Process for Rapid Assessment of Emulsified Asphalt Quality in the Field https://rip.trb.org/View/2646945 Mon, 05 Jan 2026 23:14:08 GMT https://rip.trb.org/View/2646945 Advanced Characterization and Performance-Based Test Methods for Emulsified Asphalt in South-Central United States https://rip.trb.org/View/2646937 Mon, 05 Jan 2026 22:28:52 GMT https://rip.trb.org/View/2646937 Effect on Egress of Furniture in Egress Pathways https://rip.trb.org/View/2620734 Wed, 12 Nov 2025 11:59:40 GMT https://rip.trb.org/View/2620734