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/ How do perceptions of transportation challenges influence travel behavior for people with disabilities? https://rip.trb.org/View/2702517 Thu, 14 May 2026 16:54:31 GMT https://rip.trb.org/View/2702517 Evaluating Behavioral Responses to Mobility Credits and Ridehailing Integration in a Digital Mobility System https://rip.trb.org/View/2702725 Thu, 14 May 2026 16:36:40 GMT https://rip.trb.org/View/2702725 Car or Public Transit? Exploring Factors Affecting Mode Choice in the Mobility of Care https://rip.trb.org/View/2696849 Tue, 28 Apr 2026 11:10:44 GMT https://rip.trb.org/View/2696849 Lessons Learned on Mobility as a Service (MaaS): Exploring Opportunities and Barriers for the U.S. Context https://rip.trb.org/View/2696846 Tue, 28 Apr 2026 11:03:21 GMT https://rip.trb.org/View/2696846 Governance of Multimodal Planning: Examining Transit Corridor Planning Strategies in California https://rip.trb.org/View/2696845 Tue, 28 Apr 2026 11:01:11 GMT https://rip.trb.org/View/2696845 Disability, Mode Perceptions, and Travel Behavior https://rip.trb.org/View/2695812 Thu, 23 Apr 2026 17:58:32 GMT https://rip.trb.org/View/2695812 Reducing empty miles of shared mobility on highway corridors https://rip.trb.org/View/2691661 Sun, 12 Apr 2026 23:16:30 GMT https://rip.trb.org/View/2691661 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 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 Efficient Mobility for Rural Communities https://rip.trb.org/View/2683240 Tue, 24 Mar 2026 14:22:18 GMT https://rip.trb.org/View/2683240 Data-Driven Tools for Transportation Efficiency and Community Health https://rip.trb.org/View/2677559 Thu, 05 Mar 2026 12:24:54 GMT https://rip.trb.org/View/2677559 UAM-enabled Multimodal Analysis of Transportation Systems for LA28 and beyond https://rip.trb.org/View/2676008 Tue, 03 Mar 2026 16:34:37 GMT https://rip.trb.org/View/2676008 Driver to Non-Driver Transitions: Related Health, Mobility and Safety Outcomes https://rip.trb.org/View/2671991 Wed, 18 Feb 2026 11:39:50 GMT https://rip.trb.org/View/2671991 Center for Efficient Mobility (CEM) Innovation Accelerator https://rip.trb.org/View/2636170 Thu, 12 Feb 2026 15:56:30 GMT https://rip.trb.org/View/2636170