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/ Identifying and Quantifying Microplastics Generated from the Roadway Environment: Field Monitoring and Analysis https://rip.trb.org/View/2742704 Tue, 04 Aug 2026 09:56:52 GMT https://rip.trb.org/View/2742704 Feasibility Studies of the Conceptual Novel Elevated High-Speed Rail System with a Case Study in Texas https://rip.trb.org/View/2736754 Wed, 29 Jul 2026 14:42:33 GMT https://rip.trb.org/View/2736754 Research for the AASHTO Standing Committee on Planning. Task 66. Improved Methods for Assessing Social, Cultural, and Economic Effects of Transportation Projects https://rip.trb.org/View/2706280 Wed, 27 May 2026 14:55:26 GMT https://rip.trb.org/View/2706280 Influence of Traffic Noise and Light on Wildlife Movement Near Highways https://rip.trb.org/View/2691660 Sun, 12 Apr 2026 23:12:49 GMT https://rip.trb.org/View/2691660 Use of “Plazrok” Aggregate to Produce Durable Grade 3.0 and 4.0 Concrete https://rip.trb.org/View/2652729 Tue, 13 Jan 2026 16:28:22 GMT https://rip.trb.org/View/2652729 Promoting Teachers' and Young Learners' Engagement of Transportation Issues https://rip.trb.org/View/2652184 Tue, 13 Jan 2026 14:13:31 GMT https://rip.trb.org/View/2652184 Sustainable Anti-Icing Solutions Reducing Concrete Damage with Organic-based Agents https://rip.trb.org/View/2640693 Tue, 16 Dec 2025 09:28:34 GMT https://rip.trb.org/View/2640693 Detection of Passages Beneath Highways https://rip.trb.org/View/2640689 Tue, 16 Dec 2025 09:16:07 GMT https://rip.trb.org/View/2640689 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 Optimal Design of Inland Waterway System to Increase Supply Chain Resilience https://rip.trb.org/View/2625874 Tue, 18 Nov 2025 13:46:39 GMT https://rip.trb.org/View/2625874 International Conference on Ecology and Transportation 2027 https://rip.trb.org/View/2620531 Wed, 05 Nov 2025 17:03:30 GMT https://rip.trb.org/View/2620531 Freeway Corridor Economic Impact https://rip.trb.org/View/2606590 Fri, 03 Oct 2025 15:21:21 GMT https://rip.trb.org/View/2606590 Watchful Electronics Eliminating Destructive Species https://rip.trb.org/View/2604569 Mon, 29 Sep 2025 17:07:22 GMT https://rip.trb.org/View/2604569 The Effects of Road Types and Construction Activities on Particulate Matter and Development of Best Practices for PM2.5 Reduction https://rip.trb.org/View/2604527 Mon, 29 Sep 2025 16:24:57 GMT https://rip.trb.org/View/2604527 State of Practice of Pozzolanic Concrete in Infrastructure Projects https://rip.trb.org/View/2600544 Thu, 18 Sep 2025 16:08:41 GMT https://rip.trb.org/View/2600544