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/ RES2023-24: Informed Safety, Mobility and Driver Comfort Enhancement Practices for Work Zones https://rip.trb.org/View/2480317 Fri, 03 Jan 2025 12:03:13 GMT https://rip.trb.org/View/2480317 Driving Futures: Empowering Tribal Communities through CDL Training Hub and Infrastructure Sustainability https://rip.trb.org/View/2447298 Sun, 03 Nov 2024 17:45:26 GMT https://rip.trb.org/View/2447298 SPR-4935: Orange Contrast Markings in Work Zones https://rip.trb.org/View/2434097 Wed, 25 Sep 2024 09:15:19 GMT https://rip.trb.org/View/2434097 Factors Affecting Recruitment Retention and Safety of Commercial Drivers: Supervisory Styles, Safety Culture and Long Work Hours https://rip.trb.org/View/2379556 Tue, 14 May 2024 15:13:39 GMT https://rip.trb.org/View/2379556 NICC’s CDL and Safe Driver Training Program Yr1-3 https://rip.trb.org/View/2342028 Mon, 19 Feb 2024 16:45:18 GMT https://rip.trb.org/View/2342028 Improving Commercial Vehicle Safety through University Partnerships with a Focus on Technologies and Tools to Promote Safe Driving Behaviors and to Identify High-Risk Corridors https://rip.trb.org/View/2270061 Wed, 18 Oct 2023 11:28:38 GMT https://rip.trb.org/View/2270061 SPR-4803: Communication of Fixed and Mobile Warnings to Commercial Trucks Using In Cab Notification https://rip.trb.org/View/2238785 Thu, 31 Aug 2023 16:38:05 GMT https://rip.trb.org/View/2238785 Determining the Effectiveness of Commercial Vehicle Safety Alerts https://rip.trb.org/View/2236968 Mon, 28 Aug 2023 11:40:45 GMT https://rip.trb.org/View/2236968 SPR-4836: Best Practices for Implementing Driving Simulators in INDOT Driver Training https://rip.trb.org/View/2209661 Mon, 10 Jul 2023 11:49:38 GMT https://rip.trb.org/View/2209661 Examining the Seizure Standard for CMV Drivers https://rip.trb.org/View/2077930 Tue, 06 Dec 2022 09:48:30 GMT https://rip.trb.org/View/2077930 Effect of the Length of Medical Certification on Safety https://rip.trb.org/View/2077928 Tue, 06 Dec 2022 09:48:29 GMT https://rip.trb.org/View/2077928 Fatigue, Health and CMV Driving Behavior during the COVID-19 Pandemic https://rip.trb.org/View/1765625 Wed, 27 Jan 2021 16:35:52 GMT https://rip.trb.org/View/1765625 Assessing and Improving the Cognitive and Visual Driving Fitness of CDL Drivers – Phase III https://rip.trb.org/View/1662915 Sun, 03 Nov 2019 15:58:15 GMT https://rip.trb.org/View/1662915 Assessing and Improving the Cognitive and Visual Driving Fitness of CDL Drivers – Phase II https://rip.trb.org/View/1582364 Thu, 07 Feb 2019 16:37:58 GMT https://rip.trb.org/View/1582364 Report on CDL Skills Test Delays (FAST Act - Section 5506) https://rip.trb.org/View/1455375 Tue, 14 Feb 2017 15:16:17 GMT https://rip.trb.org/View/1455375