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/ Pavement Condition Rating Method and Use for Local Agencies https://rip.trb.org/View/2618201 Tue, 04 Nov 2025 15:32:41 GMT https://rip.trb.org/View/2618201 Identifying the Underlying Reasons Driving the Shifts in Bridge Performance Rating Trends in Georgia with a Particular Focus on the Notable Inversion Observed since 2019 https://rip.trb.org/View/2589066 Thu, 14 Aug 2025 14:29:51 GMT https://rip.trb.org/View/2589066 How Complete are Your City’s Streets? Evaluating the Completeness of Urban Streets Using Big Data and Computer Vision https://rip.trb.org/View/2553162 Thu, 15 May 2025 14:42:58 GMT https://rip.trb.org/View/2553162 Revisions for the TxDOT Pavement Management Information System (PMIS) Rater’s Manual https://rip.trb.org/View/2437686 Thu, 03 Oct 2024 10:16:09 GMT https://rip.trb.org/View/2437686 A Review of Florida's FC-5 Raveling Condition Assessment and Measurement Methods https://rip.trb.org/View/2425104 Tue, 03 Sep 2024 13:18:50 GMT https://rip.trb.org/View/2425104 Develop a Methodology for Pavement Drainage System Rating https://rip.trb.org/View/2379652 Tue, 14 May 2024 10:42:55 GMT https://rip.trb.org/View/2379652 Rapid Assessment of Network-Level Pavement Conditions Using Novel Tools https://rip.trb.org/View/2291289 Wed, 15 Nov 2023 21:46:41 GMT https://rip.trb.org/View/2291289 Rating Concrete Permeability Based on Resistivity Measurements https://rip.trb.org/View/1877221 Thu, 09 Sep 2021 10:01:20 GMT https://rip.trb.org/View/1877221 Updating and Implementing the Grade Severity Rating System for Wyoming Mountain Passes, Phase 2 https://rip.trb.org/View/1715319 Thu, 18 Jun 2020 13:58:02 GMT https://rip.trb.org/View/1715319 SPR-4423: Pavement Markings for Asphalt and Concrete Pavements https://rip.trb.org/View/1646228 Thu, 15 Aug 2019 16:33:09 GMT https://rip.trb.org/View/1646228 Quantitative Bridge Inspection Ratings Using Autonomous Robotic Systems (IM-2) https://rip.trb.org/View/1482754 Thu, 14 Sep 2017 20:51:59 GMT https://rip.trb.org/View/1482754 Development of Automated Pavement Condition Score and Decision Tree Logic https://rip.trb.org/View/1480945 Thu, 24 Aug 2017 15:13:33 GMT https://rip.trb.org/View/1480945 Determination of In-Situ Precast Concrete Girder Compressive Strength https://rip.trb.org/View/1441774 Wed, 04 Jan 2017 10:52:04 GMT https://rip.trb.org/View/1441774 SPR-4012: Effects of Bridge Surface and Pavement Maintenance Activities on Asset Rating https://rip.trb.org/View/1368756 Mon, 14 Sep 2015 16:33:31 GMT https://rip.trb.org/View/1368756 Human Rating of Commercially Operated Spacecraft https://rip.trb.org/View/1367919 Thu, 03 Sep 2015 09:41:35 GMT https://rip.trb.org/View/1367919