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/ Developing a Data Fusion Tool for Improved Traffic Crash Exposure Analysis and Modeling https://rip.trb.org/View/2663603 Tue, 03 Feb 2026 15:31:17 GMT https://rip.trb.org/View/2663603 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 An Evaluation of the Long-Term Effects of the COVID-19 Pandemic on Public Transportation Use https://rip.trb.org/View/2553165 Thu, 15 May 2025 14:50:22 GMT https://rip.trb.org/View/2553165 Teleworking to Play or Playing to Telework? A Latent Segmentation Approach to Exploring the Relationship Between Telework and Nonwork Travel https://rip.trb.org/View/2519199 Sat, 08 Mar 2025 11:28:25 GMT https://rip.trb.org/View/2519199 Tour Generation of Interregional Travel in the United States: Insights from the 2017 National Household Travel Survey (NHTS) https://rip.trb.org/View/2459118 Sat, 23 Nov 2024 10:58:17 GMT https://rip.trb.org/View/2459118 Exploring the Changing Dynamics of Household Vehicle Ownership and Use in the U.S. https://rip.trb.org/View/2440045 Thu, 10 Oct 2024 17:16:55 GMT https://rip.trb.org/View/2440045 A Dynamic Analysis of the Built Environment-Travel Behavior Relationship Using Three Activity-Travel Surveys in the Austin, Texas Region https://rip.trb.org/View/2440264 Thu, 10 Oct 2024 16:34:34 GMT https://rip.trb.org/View/2440264 Investigating Travel Survey Representativeness: Who’s Missing and What Can We Do? https://rip.trb.org/View/2440263 Thu, 10 Oct 2024 16:16:10 GMT https://rip.trb.org/View/2440263 Updating and Expanding the Nation’s Most Comprehensive Database of Household Travel Survey Data and Related Built Environmental Data https://rip.trb.org/View/2422599 Tue, 27 Aug 2024 18:12:52 GMT https://rip.trb.org/View/2422599 Investigating unmet travel needs in disadvantaged and rural communities: Can sustainable transportation meet these needs? https://rip.trb.org/View/2422814 Tue, 27 Aug 2024 17:47:13 GMT https://rip.trb.org/View/2422814 Travel Demand Survey to Inform Infrastructure Investments (4.15) https://rip.trb.org/View/2378078 Thu, 09 May 2024 15:11:56 GMT https://rip.trb.org/View/2378078 Synthesis Study of Costs and Trip Rates of Recent Household Travel Surveys https://rip.trb.org/View/2233697 Fri, 25 Aug 2023 13:51:09 GMT https://rip.trb.org/View/2233697 Response Willingness in Consecutive Travel Surveys https://rip.trb.org/View/1983974 Tue, 21 Jun 2022 09:18:39 GMT https://rip.trb.org/View/1983974 Montana MPO Travel Survey Analysis https://rip.trb.org/View/1890062 Thu, 04 Nov 2021 10:27:01 GMT https://rip.trb.org/View/1890062 A Better Understanding of Shopping Travel in the U.S. (Project K5) https://rip.trb.org/View/1868828 Tue, 27 Jul 2021 09:30:54 GMT https://rip.trb.org/View/1868828