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/ 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 Digital Twin for Driving as Planning Support Tool https://rip.trb.org/View/2440022 Sun, 13 Oct 2024 09:30:31 GMT https://rip.trb.org/View/2440022 Digital Twin for Driving https://rip.trb.org/View/2292658 Tue, 21 Nov 2023 20:10:23 GMT https://rip.trb.org/View/2292658 Evaluating the effectiveness of urban speed cameras on traffic safety in a period of dramatic change https://rip.trb.org/View/2292641 Mon, 20 Nov 2023 19:38:23 GMT https://rip.trb.org/View/2292641 Crime Prevention through Environmental Design (CPTED) for Public Transit Stations https://rip.trb.org/View/2250687 Thu, 21 Sep 2023 13:13:01 GMT https://rip.trb.org/View/2250687 Transit Dependents, Choice Riders, and Service Criticality: An Analysis of the Determinants of Bus Ridership in the Philadelphia Region https://rip.trb.org/View/1758050 Wed, 16 Dec 2020 14:35:31 GMT https://rip.trb.org/View/1758050 Reidentifying Race and Technology: Streetcars in Nineteenth Century Philadelphia https://rip.trb.org/View/1232750 Thu, 03 Jan 2013 14:44:08 GMT https://rip.trb.org/View/1232750 Developing Delaware's Agenda in Transportation within the Northeast Corridor https://rip.trb.org/View/1232677 Thu, 03 Jan 2013 14:42:45 GMT https://rip.trb.org/View/1232677 Fatigue Resistance of Rib to Deck Welds in Steel Orthotropic Decks https://rip.trb.org/View/1230551 Thu, 03 Jan 2013 14:02:02 GMT https://rip.trb.org/View/1230551