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/ 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 Legal Aspects of Transit and Intermodal Transportation Programs. Topic 20-03. Policing and Public Transportation https://rip.trb.org/View/1722785 Mon, 20 Jul 2020 18:55:47 GMT https://rip.trb.org/View/1722785