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/ Advanced Transportation Optimization and Modeling (ATOM) https://rip.trb.org/View/2676009 Tue, 03 Mar 2026 16:42:33 GMT https://rip.trb.org/View/2676009 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 Novel concretes made using supplementary cementitious materials and seawater (UM) https://rip.trb.org/View/2663226 Sat, 31 Jan 2026 11:06:52 GMT https://rip.trb.org/View/2663226 Evaluating Polymer Concrete As A Bonding Agent in Segmental Bridge Construction https://rip.trb.org/View/2633311 Tue, 02 Dec 2025 16:04:11 GMT https://rip.trb.org/View/2633311 DOT Application of the Palmiter Stream Management Technique in Small Streams https://rip.trb.org/View/2633332 Tue, 02 Dec 2025 13:37:51 GMT https://rip.trb.org/View/2633332 Develop a Data-Driven Intersection & Interchange Control Evaluation (DIICE) Tool https://rip.trb.org/View/2614516 Tue, 28 Oct 2025 11:20:20 GMT https://rip.trb.org/View/2614516 Freeway Corridor Economic Impact https://rip.trb.org/View/2606590 Fri, 03 Oct 2025 15:21:21 GMT https://rip.trb.org/View/2606590 Overlays with Rapid Setting Cement and a Liquid Low P Admixture https://rip.trb.org/View/2587118 Sat, 09 Aug 2025 09:26:59 GMT https://rip.trb.org/View/2587118 Strategies for Controlling Cost and Schedule Growth on Alternative Delivery Projects https://rip.trb.org/View/2558415 Tue, 27 May 2025 20:31:48 GMT https://rip.trb.org/View/2558415 High-Polymer Asphalt Binder and Asphalt Mixture for Enhanced Durability and Cost-Effectiveness in Urban Transportation Infrastructure https://rip.trb.org/View/2475695 Fri, 20 Dec 2024 19:46:47 GMT https://rip.trb.org/View/2475695 Determine Feasibility of Alternative Tests for the Standardized Field Sobriety Test https://rip.trb.org/View/2447245 Fri, 01 Nov 2024 12:46:28 GMT https://rip.trb.org/View/2447245 Virtual Reality as a Tool to Enhance Public Involvement Process https://rip.trb.org/View/2447165 Wed, 30 Oct 2024 15:36:10 GMT https://rip.trb.org/View/2447165 Durability of Diamond Ground HMA with and w/o Tack Coat https://rip.trb.org/View/2431174 Mon, 16 Sep 2024 09:32:58 GMT https://rip.trb.org/View/2431174 Identify and Evaluate Innovative Pedestrian Safety Countermeasures for Rural and Nighttime Environments https://rip.trb.org/View/2420076 Thu, 22 Aug 2024 16:43:24 GMT https://rip.trb.org/View/2420076 Speed Impacts from Roundabouts and Other Traffic Control Devices https://rip.trb.org/View/2414011 Wed, 07 Aug 2024 09:25:08 GMT https://rip.trb.org/View/2414011