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/ Evaluate the Safety Effects of Multiple Vehicle Synchronized Warning Lights in ODOT Work Zones https://rip.trb.org/View/2701274 Tue, 12 May 2026 10:43:15 GMT https://rip.trb.org/View/2701274 Enhancing Heavy Vehicle Crash Prevention in North Dakota through Machine Learning and Weather Data Integration https://rip.trb.org/View/2683255 Tue, 24 Mar 2026 14:09:40 GMT https://rip.trb.org/View/2683255 Data-driven assessment of rigid pavement vulnerability in Texas coastal regions https://rip.trb.org/View/2663108 Thu, 29 Jan 2026 19:58:17 GMT https://rip.trb.org/View/2663108 Identifying and evaluating the most effective actions to prepare Puerto Rico’s primary ports and freight road transportation infrastructure for flooding disruptions using stochastic models https://rip.trb.org/View/2662990 Thu, 29 Jan 2026 16:19:38 GMT https://rip.trb.org/View/2662990 Impact of Pavement and Weather Conditions on Traffic Speed at Sharp Horizontal Curves https://rip.trb.org/View/2646943 Mon, 05 Jan 2026 23:07:35 GMT https://rip.trb.org/View/2646943 Study to Understand the Influence of Emergency Vehicle Color, Reflectance, Signing/Arrow Boards, and Lighting Configurations in Reducing Responder-Involved Crashes https://rip.trb.org/View/2642797 Wed, 17 Dec 2025 15:58:45 GMT https://rip.trb.org/View/2642797 Connected Vehicle Data https://rip.trb.org/View/2640696 Tue, 16 Dec 2025 09:56:38 GMT https://rip.trb.org/View/2640696 Estimating Environmental Load Demands Considering Weather Extremes to Enhance Resiliency of Oklahoma Bridges https://rip.trb.org/View/2633314 Tue, 02 Dec 2025 16:20:21 GMT https://rip.trb.org/View/2633314 Assessing the Impacts of Evolving Rockfall Hazard Due to Hypothetical Variations in Weather Patterns on Colorado's Transportation Network https://rip.trb.org/View/2427590 Tue, 18 Nov 2025 08:02:53 GMT https://rip.trb.org/View/2427590 Harnessing Real-Time Weather Data for Improved Bridge Inspection after Flood Events https://rip.trb.org/View/2590605 Tue, 19 Aug 2025 15:02:26 GMT https://rip.trb.org/View/2590605 Creation of a Rapidly-Updating Road Weather Impacts Prediction System (RWIPS) https://rip.trb.org/View/2548657 Wed, 30 Apr 2025 09:20:16 GMT https://rip.trb.org/View/2548657 Investigating Driving Behavior in Rural Areas During Extreme Weather Conditions through Integrated Driving Simulators and Virtual Reality https://rip.trb.org/View/2509043 Wed, 12 Feb 2025 17:32:35 GMT https://rip.trb.org/View/2509043 Selection, Integration, and Effectiveness Study of Input Data for Nebraska Variable Speed Signs on I-80 https://rip.trb.org/View/2507247 Mon, 10 Feb 2025 14:01:19 GMT https://rip.trb.org/View/2507247 Assessment of Crash Reduction Traffic Control Measures at T-intersections on Rural Highways https://rip.trb.org/View/2507244 Mon, 10 Feb 2025 11:29:51 GMT https://rip.trb.org/View/2507244 Impact of Weather Variables on Emerging Micromoblity options (Bikeshare and E-Scooter) in the South-Central United States https://rip.trb.org/View/2480351 Wed, 01 Jan 2025 16:04:57 GMT https://rip.trb.org/View/2480351