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/ School Zone Research https://rip.trb.org/View/2606592 Fri, 03 Oct 2025 15:47:14 GMT https://rip.trb.org/View/2606592 Health Risks for Transit Users https://rip.trb.org/View/2335152 Tue, 06 Feb 2024 17:00:26 GMT https://rip.trb.org/View/2335152 Segregated Access to Educational Opportunities and the Role of Public-School Transportation Infrastructure https://rip.trb.org/View/1756448 Wed, 09 Dec 2020 15:22:30 GMT https://rip.trb.org/View/1756448