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/ Transit Priority Expectations – Cost-Effectiveness and Service Provision Impacts https://rip.trb.org/View/2636146 Mon, 08 Dec 2025 19:58:45 GMT https://rip.trb.org/View/2636146 A Comprehensive Evaluation of I-275 Bus-on-Shoulder (BOS) Pilot Project https://rip.trb.org/View/2256382 Thu, 28 Sep 2023 14:52:04 GMT https://rip.trb.org/View/2256382 Synthesis of Information Related to Highway Practices. Topic 55-20. Traffic Capacity Level of Service Adaptations and Usage https://rip.trb.org/View/2190458 Fri, 09 Jun 2023 12:43:14 GMT https://rip.trb.org/View/2190458 Synthesis of Information Related to Transit Practices. Topic SB-42. Operational and Service Factors When Integrating/Consolidating ADA Paratransit and On-Demand Services https://rip.trb.org/View/2190447 Mon, 05 Jun 2023 16:36:50 GMT https://rip.trb.org/View/2190447 Performance Measures for Community-Centered Transportation Outcomes: A Guide https://rip.trb.org/View/2188141 Tue, 30 May 2023 20:31:15 GMT https://rip.trb.org/View/2188141 Ranking Public Transportation Services for Rural States in the Upper Midwest and Great Plains Region https://rip.trb.org/View/1986462 Wed, 29 Jun 2022 08:45:14 GMT https://rip.trb.org/View/1986462 Synthesis of Information Related to Transit Practices. Topic SB-37. Transit Agency Goals and Non-Traditional Performance Indicators Focused on Equity https://rip.trb.org/View/1957110 Tue, 24 May 2022 10:40:13 GMT https://rip.trb.org/View/1957110 WSDOT Maintenance Performance Measure Algorithm https://rip.trb.org/View/1928908 Thu, 17 Mar 2022 14:02:31 GMT https://rip.trb.org/View/1928908 Improve Traffic Analysis and Mobility Modeling Using Information and Communication Technologies https://rip.trb.org/View/1879854 Thu, 23 Sep 2021 11:42:20 GMT https://rip.trb.org/View/1879854 A Comprehensive Evaluation of I-275 Bus-on-Shoulder (BOS) Pilot Project https://rip.trb.org/View/1867584 Fri, 23 Jul 2021 12:54:20 GMT https://rip.trb.org/View/1867584 Urban Applications of Innovative Intersection Designs https://rip.trb.org/View/1844080 Tue, 30 Mar 2021 08:26:00 GMT https://rip.trb.org/View/1844080 Winter Maintenance Levels of Service and Performance Measures https://rip.trb.org/View/1844015 Mon, 29 Mar 2021 10:47:06 GMT https://rip.trb.org/View/1844015 Quick-Response Research on Long-Term Strategic Issues. Task 42. Transportation for People with Disabilities and Older Adults during COVID-19: Lessons for Emergency Response https://rip.trb.org/View/1753484 Mon, 23 Nov 2020 20:01:55 GMT https://rip.trb.org/View/1753484 Minutes Matter: A Guide to Bus Transit Service Reliability https://rip.trb.org/View/1747283 Mon, 26 Oct 2020 20:12:28 GMT https://rip.trb.org/View/1747283 Synthesis of Information Related to Transit Practices. Topic SA-52. Assessing Equity and Identifying Impacts Associated with Bus Network Redesigns https://rip.trb.org/View/1708340 Wed, 27 May 2020 11:02:44 GMT https://rip.trb.org/View/1708340