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/ Applicability of Low-Floor Light Rail Vehicles in North America https://rip.trb.org/View/2516244 Tue, 25 Feb 2025 14:55:33 GMT https://rip.trb.org/View/2516244 Guardrail Height Safety Requirements Given Recent Crash History and Evolution of Vehicle Design https://rip.trb.org/View/2512572 Fri, 21 Feb 2025 10:48:59 GMT https://rip.trb.org/View/2512572 How Much Pedestrian Harm Can We Attribute to Larger Vehicles in the Fleet? https://rip.trb.org/View/2229412 Thu, 17 Aug 2023 16:58:06 GMT https://rip.trb.org/View/2229412 Bus of the Future Compartment Redesign https://rip.trb.org/View/2093180 Tue, 03 Jan 2023 13:53:39 GMT https://rip.trb.org/View/2093180 Demonstration and Commercialization of LRV Bumper for Enhanced Safety in Shared Right-of-Way Street Environments https://rip.trb.org/View/2071588 Mon, 28 Nov 2022 14:20:16 GMT https://rip.trb.org/View/2071588 Additional Considerations for Making ADS Vehicles Accessible for All Road Users https://rip.trb.org/View/2062795 Thu, 17 Nov 2022 11:56:34 GMT https://rip.trb.org/View/2062795 Applying the Safe System Approach to Transportation Planning, Design, and Operations in the United States https://rip.trb.org/View/1842750 Wed, 24 Mar 2021 10:40:55 GMT https://rip.trb.org/View/1842750 Bus Operator Barrier Design https://rip.trb.org/View/1709365 Tue, 02 Jun 2020 10:52:22 GMT https://rip.trb.org/View/1709365 Hydraulic Inspection Vehicle Explorer (HIVE) Culvert Upgrade https://rip.trb.org/View/1663537 Mon, 04 Nov 2019 10:19:43 GMT https://rip.trb.org/View/1663537 Computer Aided Design for Safe Autonomous Vehicles https://rip.trb.org/View/1636492 Thu, 11 Jul 2019 15:18:37 GMT https://rip.trb.org/View/1636492 F1/10 Autonomous Racing Course and Competition https://rip.trb.org/View/1636493 Thu, 11 Jul 2019 14:51:41 GMT https://rip.trb.org/View/1636493 Update of the Policy on Geometric Design of Highways and Streets Guidance on Acceleration/Deceleration and Stopping Sight Distance Criteria https://rip.trb.org/View/1628617 Sat, 08 Jun 2019 05:14:54 GMT https://rip.trb.org/View/1628617 Human Factors - Vehicle Design Focus - CU Task 353 https://rip.trb.org/View/1537224 Wed, 22 Aug 2018 13:03:40 GMT https://rip.trb.org/View/1537224 Adhesive Qualification Guidance for Aircraft Design and Certification https://rip.trb.org/View/1532784 Fri, 17 Aug 2018 11:42:19 GMT https://rip.trb.org/View/1532784 Takeoff/Climb Analysis to support AEDT APM Development _Project 45 https://rip.trb.org/View/1532775 Fri, 17 Aug 2018 11:42:02 GMT https://rip.trb.org/View/1532775