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/ Streamlining the Registration Process for Motor Carriers https://rip.trb.org/View/2593941 Thu, 28 Aug 2025 11:32:35 GMT https://rip.trb.org/View/2593941 Chameleon Carriers Study https://rip.trb.org/View/2417076 Mon, 12 Aug 2024 13:26:35 GMT https://rip.trb.org/View/2417076 ACRP Policy and Planning Products Update - PHASE II https://rip.trb.org/View/2244238 Mon, 11 Sep 2023 21:03:39 GMT https://rip.trb.org/View/2244238 Tool to Assess Effectiveness of Intermodal Facility Location and Carrier Collaboration https://rip.trb.org/View/2196816 Wed, 14 Jun 2023 15:24:13 GMT https://rip.trb.org/View/2196816 Methods to Identify Problematic Carriers and Prevent Infrastructure Damage https://rip.trb.org/View/2150891 Wed, 12 Apr 2023 10:09:29 GMT https://rip.trb.org/View/2150891 Item Response Theory (IRT) https://rip.trb.org/View/2100886 Wed, 18 Jan 2023 11:17:32 GMT https://rip.trb.org/View/2100886 Synthesis of Information Related to Airport Practices. Topic S01-29. Airport Practices for Onboarding a New Passenger Airline https://rip.trb.org/View/2077895 Wed, 07 Dec 2022 17:13:48 GMT https://rip.trb.org/View/2077895 Synthesis of Information Related to Airport Practices. Topic S01-27. State of Airport Loyalty Programs https://rip.trb.org/View/1897245 Tue, 14 Dec 2021 13:18:11 GMT https://rip.trb.org/View/1897245 Evaluation of Electronic Enforcement of Motor Carrier Compliance and Safety https://rip.trb.org/View/1896778 Fri, 10 Dec 2021 14:19:03 GMT https://rip.trb.org/View/1896778 SPR-4606: Overweight Divisible Loads: Permit Administration and Impact on Indiana’s Road Infrastructure and Safety https://rip.trb.org/View/1858257 Thu, 10 Jun 2021 15:38:06 GMT https://rip.trb.org/View/1858257 Selecting, Procuring, and Implementing Airport Capital Project Delivery Methods https://rip.trb.org/View/1645859 Mon, 12 Aug 2019 20:17:26 GMT https://rip.trb.org/View/1645859 Impact of Ride-sharing in New York City https://rip.trb.org/View/1607556 Wed, 22 May 2019 13:23:05 GMT https://rip.trb.org/View/1607556 Simulation and Analytical Evaluation of Bus Redesign Alternatives in Transit Deserts with Ride-hail Presence https://rip.trb.org/View/1607545 Wed, 22 May 2019 12:55:06 GMT https://rip.trb.org/View/1607545 ASCENT Project 35 - Airline Flight Data Examination to Improve Flight Performance Modeling https://rip.trb.org/View/1502386 Fri, 16 Feb 2018 13:19:24 GMT https://rip.trb.org/View/1502386 Expert Support for Improving Motor Carrier Safety Measurement https://rip.trb.org/View/1497932 Wed, 17 Jan 2018 12:38:10 GMT https://rip.trb.org/View/1497932