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/ Guidelines and Best Practices for Determining the Life Cycle Cost of Various Superstructure Types https://rip.trb.org/View/2731917 Fri, 17 Jul 2026 10:05:08 GMT https://rip.trb.org/View/2731917 A Data-Driven and Region-Specific Optimization Framework for CCS and WIM Planning https://rip.trb.org/View/2719328 Thu, 25 Jun 2026 11:46:42 GMT https://rip.trb.org/View/2719328 Identifying, Assessing, and Managing Events for Critical Infrastructure Resilience in Surface Transportation https://rip.trb.org/View/2712209 Wed, 10 Jun 2026 11:41:46 GMT https://rip.trb.org/View/2712209 Cost-Benefit Analysis of Preemptive Weather-Related Road Closures https://rip.trb.org/View/2689390 Tue, 02 Jun 2026 12:24:05 GMT https://rip.trb.org/View/2689390 Capital Investment, Financing, Flood Risk, and Transportation Safety in the MidAmerica Region https://rip.trb.org/View/2706033 Sat, 23 May 2026 17:36:26 GMT https://rip.trb.org/View/2706033 A Framework for Integrated Quality of Service Evaluation using Operational and Safety Considerations https://rip.trb.org/View/2703926 Thu, 21 May 2026 22:41:30 GMT https://rip.trb.org/View/2703926 Decision Support for Dynamic Risks: Determinants of Model Adoption https://rip.trb.org/View/2703696 Fri, 15 May 2026 14:13:01 GMT https://rip.trb.org/View/2703696 Sensor-informed Generative Digital Twin: High-fidelity Simulation for Sustainable Transportation and Policy Validation https://rip.trb.org/View/2691669 Sun, 12 Apr 2026 23:41:20 GMT https://rip.trb.org/View/2691669 Modeling Bicyclist Behavioral Patterns and Multi-Faceted Decision-Making Strategies in Urban Settings with Limited Infrastructure: Guidance for Future Development https://rip.trb.org/View/2691667 Sun, 12 Apr 2026 23:34:35 GMT https://rip.trb.org/View/2691667 What Makes Complete Streets Projects Work? https://rip.trb.org/View/2690983 Thu, 09 Apr 2026 14:32:57 GMT https://rip.trb.org/View/2690983 Successful Applications of Alternative Delivery Methods by Highway Agencies to Accelerate Project Delivery https://rip.trb.org/View/2681234 Tue, 17 Mar 2026 15:10:13 GMT https://rip.trb.org/View/2681234 Seasonal Weight Restriction Decision Making Based on Understanding and Monitoring of Frost Susceptibility of Pavement Structures https://rip.trb.org/View/2671988 Wed, 18 Feb 2026 11:28:12 GMT https://rip.trb.org/View/2671988 Micromobility Decision-Making Atlas https://rip.trb.org/View/2669653 Sun, 15 Feb 2026 16:30:25 GMT https://rip.trb.org/View/2669653 Administration of Highway and Transportation Agencies. Understanding and Developing a Behavior-Based Safety Program for State DOT Employees https://rip.trb.org/View/2666774 Mon, 09 Feb 2026 20:11:13 GMT https://rip.trb.org/View/2666774 From perception to preparedness: Virtual reality simulations of flooded roadways in coastal communities (UPRM) https://rip.trb.org/View/2663232 Sat, 31 Jan 2026 12:03:43 GMT https://rip.trb.org/View/2663232