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TRB Weekly

TRB Weekly is a free weekly email newsletter designed to keep you up-to-date on TRB activities and to highlight select transportation research-related activities taking place at the federal and state levels, and within the academic and international transportation communities. Subscribe to have the latest version delivered to your inbox.

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Send comments or questions about TRB Weekly to trbnews@nas.edu. TRB highlights external reports and publications that are available online without a fee and are published within the past 60 days. TRB is not able to highlight external journal or web articles, events that are not sponsored or cosponsored by TRB, or promotional materials. 

Select from the list below to view this year and last year's TRB Weekly.

National Academies of Sciences, Engineering, and Medicine
TRB Weekly covers the latest in transportation research.
TRB Annual Meeting

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Chris Hendrickson, Hamerschlag University Professor Emeritus at Carnegie Mellon University, is the 2025 recipient of the Roy W. Crum Award. He is honored for a 50-year career, during which he has authored 290 peer-reviewed publications, eight books, and ten edited volumes, taught hundreds of professionals and guided 40 doctoral students, advancing scholarship in engineering planning and management, transportation systems, construction project management, and environmental analysis.


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More than 60 workshops will be featured on the first and last days of the 2026 TRB Annual Meeting. Check out the details to start planning your schedule!

News to Know

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TRB's Airport Cooperative Research Program (ACRP) has been recognized with the Michigan Aeronautics Commission (MAC) and Michigan Department of Transportation (MDOT) Award of Excellence for "two decades of transformative contributions to the aviation industry." The award is presented to airports, aviators, professionals, consultants, and others.


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ACRP is commemorating its 20th anniversary with a special celebration, bringing airport practitioners together to gain an insider’s look at ACRP’s role in advancing practical, responsive solutions and sharing impact stories from across the country. Celebrating 20 Years: How You Can Drive Airport Innovation with ACRP is a virtual event on September 26 from 1:00 – 1:45 PM Eastern that will feature special guests, trivia, prizes, and much more! Register for the virtual event at the ACRP 20th Anniversary website.

New TRB Publications

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Transportation leaders regularly face high-stakes decisions — often under time pressure and sometimes without complete information. These choices can affect billions of dollars and entire states of travelers. NCHRP Research Report 1162: Advancing the Art and Science of Decision-Making: A Guide, released this week by TRB’s National Cooperative Highway Research Program, equips leaders with tools to navigate these challenges. The guide blends practical insights from agency executives with cutting-edge cognitive science to enhance decision-making under uncertainty.


NCHRP Research Report 1152: Leveraging Artificial Intelligence and Big Data to Enhance Safety Analysis: A Guide

NCHRP Research Report 1146: Risk Management at State DOTs: Building Momentum and Sustaining the Practice

TCRP Synthesis 182: Providing Low-Income Fare Discounts at Public Transit Agencies

September Spotlight: Workforce

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Traditional lagging indicators—such as annual injury rates—offer a limited view of workforce safety. To shift toward prevention, many organizations are adopting leading indicators that capture proactive safety measures before incidents occur. TRB’s NCHRP Synthesis 637: Tracking Safety Leading Indicators to Improve DOT Employee Safety Performance explores how state departments of transportation are applying this approach. The report includes survey findings on safety practices, offering actionable strategies to reduce occupational injuries and build safer work environments. Learn more in the National Academies' Transportation Workforce Collection, which features additional tools and guidance on supporting DOT employees.

Events

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September 24 – TRB Webinar: Choosing and Implementing Airport Capital Project Delivery Methods

September 29 – TRB Webinar: Advancing Unpaved Roads and Airfields Through Graduate Research

October 2 – TRB Webinar: Quality Construction Begins with Certified Sampling and Testing Personnel

RFPs

State of Practice of Pozzolanic Concrete in Infrastructure Projects due October 29

News for You

The TRB National Cooperative Highway Research Program's U.S. Domestic Scan program brings highly-experienced mid-career and senior agency professionals into direct personal contact with those applying new ideas to advance the state-of-practice. State departments of transportation, AASHTO committee/council members, and FHWA offices may submit a topic by September 30.

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October 1 – Join a fireside chat with the Federal Transit Administration's Maryam Allahyar Wyrick, Associate Administrator for Research, Demonstration, and Innovation, and a live recording of the Transit Unplugged podcast with Paul Comfort featuring Matthew W. Daus of Windels Marx Lane & Mittendorf, LLP and Sarah Meyer of Washington Metropolitan Area Transit Authority on TCRP Day in Washington, D.C. Get to know TRB's Transit Cooperative Research Program better. Register by tomorrow to attend in person!

Research Roundup

Utah State University, Logan – Proactive Planning Tool to Reduce Wildfire Sedimentation Risks

Clemson University – Identifying and Patching Vulnerabilities of Camera-LiDAR Based Autonomous Driving Systems 

New York University – Guidelines for the Implementation of Flipped Left Diamond Interchange (FLDI) Design 

University of New Mexico, Albuquerque – NMDOT Pedestrian Outreach Program 

Dalhousie University – Transforming End of Life Tires Into a Resource: The Role of Tire Derived Aggregates in Civil Engineering 

San José State University – Developing an Integrated Risk Assessment Framework to Quantify the Resilience of Critical Railway Infrastructure: Characterization of Risks and Hazards to the U.S. Rail Network Through Empirical Data and Past Events

San José State University – Using Toll Revenues for Transit: It Can and Should be Done

University of California, Davis – Youth Cruz Free: Fare Free Bus and Ridership Behavior among Santa Cruz County Teens

NZ Transport Agency Waka Kotahi – Evidence Review of Road Space Reallocation: Effect on Network Vehicle-Kilometres-Travelled

U.S. National Park Service – NPS National Transit Inventory and Performance Report, 2024 

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