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/ Using Artificial Intelligence to Uncover How Safety Perception Influences Travel Behavior Shifts: Comparative & Longitudinal Analysis for the Future of Autonomous Vehicle, Transit and Ride-hailing Services https://rip.trb.org/View/2655700 Mon, 19 Jan 2026 16:09:31 GMT https://rip.trb.org/View/2655700 Enhancing Transit Safety for Riders and Workers Through Strategic Collaboration with Law Enforcement https://rip.trb.org/View/2636139 Mon, 08 Dec 2025 19:39:34 GMT https://rip.trb.org/View/2636139 Synthesis of Information Related to Transit Practices. Topic SA-65. Assessment of Transit Industry Understanding and Implementation of Safety Management System (SMS): Identifying Effective Strategies and Tools https://rip.trb.org/View/2576266 Wed, 16 Jul 2025 15:17:42 GMT https://rip.trb.org/View/2576266 Synthesis of Information Related to Transit Practices. Topic SG-21. Examining Delivery Models for Law Enforcement on Public Transit https://rip.trb.org/View/2576269 Wed, 16 Jul 2025 14:36:15 GMT https://rip.trb.org/View/2576269 Synthesis of Information Related to Transit Practices. Topic SA-66. Measuring and Mitigating Risk in Transit Automation Testing and Implementation https://rip.trb.org/View/2576272 Wed, 16 Jul 2025 13:59:02 GMT https://rip.trb.org/View/2576272 Measures of Transit Ambassador and Outreach Program Effectiveness https://rip.trb.org/View/2464328 Tue, 26 Nov 2024 06:11:12 GMT https://rip.trb.org/View/2464328 Crime Prevention through Environmental Design (CPTED) for Public Transit Stations: Year 2 https://rip.trb.org/View/2446989 Wed, 30 Oct 2024 14:33:26 GMT https://rip.trb.org/View/2446989 Building AI and Machine Learning Technologies for Enhancing Transportation Station Area Safety in San Jose, CA https://rip.trb.org/View/2431333 Tue, 17 Sep 2024 16:27:22 GMT https://rip.trb.org/View/2431333 Exploring the relationship between the built environment, safety, and bus ridership in Connecticut using mixed research methods https://rip.trb.org/View/2321640 Fri, 12 Jan 2024 10:20:42 GMT https://rip.trb.org/View/2321640 Co-designing Safety-Enhancing ADAS with Transit Operators https://rip.trb.org/View/2292668 Tue, 21 Nov 2023 17:57:38 GMT https://rip.trb.org/View/2292668 Synthesis of Information Related to Transit Practices. Topic SH-24. Impacts of Fentanyl and Substance Use on Transit https://rip.trb.org/View/2190454 Tue, 06 Jun 2023 16:58:12 GMT https://rip.trb.org/View/2190454 Synthesis of Information Related to Transit Practices. Topic SB-39. Improving Transit Customer Perception of Personal Security https://rip.trb.org/View/2149963 Mon, 10 Apr 2023 17:18:52 GMT https://rip.trb.org/View/2149963 Understanding How Marginalized Genders Travel Using NJ Transit https://rip.trb.org/View/2132217 Mon, 06 Mar 2023 10:36:18 GMT https://rip.trb.org/View/2132217 Watch Out for CityLYNX! Be Streetcar Smart https://rip.trb.org/View/2096560 Fri, 13 Jan 2023 14:49:10 GMT https://rip.trb.org/View/2096560 Utah Transit Authority, Suicide Prevention Research and Demonstration Project https://rip.trb.org/View/2096559 Fri, 13 Jan 2023 14:49:09 GMT https://rip.trb.org/View/2096559