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/ Implementing an Advanced Open-Source Activity Based Travel Demand Model to Support Rural Transportation Planning and Policy Decisions https://rip.trb.org/View/2692312 Tue, 14 Apr 2026 12:09:54 GMT https://rip.trb.org/View/2692312 Implementing an Advanced Open-Source Activity Based Travel Demand Model to Support Rural Transportation Planning and Policy Decisions: Phase 2 – Calibration https://rip.trb.org/View/2691726 Sun, 12 Apr 2026 23:58:15 GMT https://rip.trb.org/View/2691726 The San José's Mobility Credit Pilot: A Delayed Randomized Control Trial Evaluation https://rip.trb.org/View/2691659 Sun, 12 Apr 2026 23:10:13 GMT https://rip.trb.org/View/2691659 Scaling Shared Autonomous Vehicle Services: Adoption, Demand, and System Implications https://rip.trb.org/View/2691658 Sun, 12 Apr 2026 23:06:23 GMT https://rip.trb.org/View/2691658 Assessing the Reliability and Usability of Mobile Ticketing App Data for Transit Analytics: A Case Study of Unitrans in Davis, California https://rip.trb.org/View/2690984 Thu, 09 Apr 2026 14:29:48 GMT https://rip.trb.org/View/2690984 Utility of Improving Nonmotorized Volume Forecasts for Bike Infrastructure https://rip.trb.org/View/2681257 Tue, 17 Mar 2026 09:48:42 GMT https://rip.trb.org/View/2681257 Evaluating Fuzzed Connected Vehicle Data to Support Travel Demand Modeling https://rip.trb.org/View/2663276 Sun, 01 Feb 2026 11:00:46 GMT https://rip.trb.org/View/2663276 Strategic Approaches to Managing Emerging Transportation Infrastructure Assets Through Public-Private Partnership https://rip.trb.org/View/2658058 Fri, 23 Jan 2026 13:43:13 GMT https://rip.trb.org/View/2658058 Evaluate Speed Estimation Techniques for EPA Moves Model Input Using Big Data and Travel Demand Models for Regional Conformity Analysis https://rip.trb.org/View/2562324 Mon, 09 Jun 2025 08:02:14 GMT https://rip.trb.org/View/2562324 Enhancing Transit Demand Estimation with Emerging Data-as-a-Service (DaaS) https://rip.trb.org/View/2553995 Fri, 16 May 2025 07:10:17 GMT https://rip.trb.org/View/2553995 The Reverse Side of Online Shopping: Examining Sociodemographic and Built-Environment Determinants of Delivery Returns https://rip.trb.org/View/2553166 Thu, 15 May 2025 14:53:38 GMT https://rip.trb.org/View/2553166 How Effective Are Attitudinal Variables at Improving Travel Behavior Models? Evaluation Using an Overlapping Sample From an Attitude-Rich Survey and the 2017 National Household Travel Survey https://rip.trb.org/View/2553161 Thu, 15 May 2025 14:39:16 GMT https://rip.trb.org/View/2553161 Utilizing Big Data to Verify and Enhance Route Choice Models in Travel Demand Modeling https://rip.trb.org/View/2553840 Thu, 15 May 2025 09:16:33 GMT https://rip.trb.org/View/2553840 Quasi-Sparsity in Transportation Origin-Destination Demand https://rip.trb.org/View/2553156 Tue, 13 May 2025 19:25:03 GMT https://rip.trb.org/View/2553156 Vehicle Edge Computing for Travel Behavior and Demand in Future Intelligent Transportation Systems (ITS) https://rip.trb.org/View/2553151 Tue, 13 May 2025 19:05:22 GMT https://rip.trb.org/View/2553151