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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.
News to Know

Hani Mahmassani.jpg

TRB mourns the passing of TRB Executive Committee member Hani Mahmassani, who was the William A. Patterson Distinguished Chair in Transportation at Northwestern University, as well as Professor of Civil and Environmental Engineering and Professor of Industrial Engineering and Management Sciences. He also served as Director of the Northwestern University Transportation Center and Director of the U.S. Department of Transportation Center of Excellence on Telemobility.

Mahmassani pioneered work in modeling and understanding individual behavior in complex transportation networks to enhance system planning, design, and operation in support of societal and sustainability goals. His achievements were recognized with several TRB honors, including the Thomas B. Deen Distinguished Lectureship in 2016 and the prestigious Roy W. Crum Award in 2021.

"Hani was a significant contributor to TRB and a respected member of the National Academy of Engineering and transportation research community. He touched the lives of many in the transportation sector and impacted the careers of countless individuals. He will be missed," said TRB Executive Director Victoria Sheehan.

TRB honors Mahmassani’s enduring legacy and celebrates a life dedicated to advancing transportation and improving lives through innovation, collaboration, and service.

New TRB Publications

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In 2019, the American Intercity Bus Riders Association created the National Intercity Bus Atlas, a database of intercity bus transit services in the United States. The atlas was developed to facilitate the promotion of intercity bus use by providing comprehensive service provider, route, and scheduling information in a public-facing online platform. Before this, there had been no publicly available national clearinghouse, list, or map of intercity bus services.

NCHRP Research Report 1150: Implementation of the National Intercity Bus Atlas was released this week from TRB's National Cooperative Highway Research Program. It documents the development of the data framework for the mapping. Technical challenges and hesitancy by some private carriers to share certain operating data resulted in several key information gaps. The report offers suggested future improvements to the atlas such as including more service characteristics and strategies to address data collection challenges.


NCHRP Research Report 1147: Implementation of Uncrewed Aircraft Systems Operational Capabilities: A Guide

NCHRP Web-Only Document 424: Uncrewed Aircraft Systems Operational Capabilities: Conduct of Research

July Spotlight: Transportation Tech

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When it comes to thinking about technology, airport customers and operators alike think a lot about parking, which is usually the largest source of non-aeronautical revenue at commercial airports. In a survey released earlier this year from TRB's Airport Cooperative Research Program, in ACRP Synthesis 140: Airport Parking Reservation Systems and Techniques, a key finding was that airports employ a variety of online booking systems (OBS). Most airports surveyed said OBS improves the customer experience, provides future demand data, improves utilization, and helps obtain customer data. Operators were found to either use a parking-operations contract that includes OBS or to contract and manage OBS themselves.

For much more across all modes, take a look at the new National Academies Press Transformational Technology in Transportation Collection.

TRB Annual Meeting

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  • To serve as a paper reviewer for the 2026 annual meeting, all new and returning reviewers must update their profiles in the paper review platform to indicate interest by August 1. As part of this update, reviewers are required to select their areas of expertise using our revised classification system. Find a one-minute video guide with instructions on how to update your classifications and maintain your eligibility to review.
  • As a TRB AM Patron, your organization’s employees will have access to a wealth of valuable online information and insights related to transportation research, policy, and practice. See benefits patrons receive and secure your package today!
Events

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July 23 – TRB Webinar: Planning for Shock Events in Aviation Demand Forecasting

July 24 – TRB Webinar: Bridge Preservation Using Non-Destructive Testing on T1 Steel

July 29 – TRB Webinar: Remote Sensing and Drone Tools for Rural Road Resilience

July 31 - Register to join TRB's Impacts on Shipping and Commercial, Tribal, and Recreational Fisheries from Development of Renewable Energy on the West Coast meeting held online.

August 14 - TRB Webinar: Integrating Crisis Management and Business Continuity at Airports

RFPs

Design, Construction, and Maintenance Approaches to Address Encampments on State Transportation Rights-of-Way proposals due August 26

News for You

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Watch session recordings from TRB's Conference on Innovative Science and Technology to Improve Security and Safety in the Marine Transportation System.

Nominate yourself or others with directly relevant expertise to serve on a TRB Behavioral Traffic Safety Cooperative Program project oversight panel by July 31. The FY2026 projects will focus on preventing and responding to crashes on the roads. 

Express your interest in working with TRB's Transit Cooperative Research Program! Submit your Letter of Interest by August 8 to be considered for a paid role as a principal investigator on synthesis projects with topics including safety management system, risk assessment, evaluating bus network designs, evacuating persons with cognitive and physical disabilities, partnerships, wayfinding strategies, and law enforcement delivery.

Research Roundup

Clemson University – Finding Vulnerabilities of Autonomous Vehicle Stacks to Physical Adversaries

Olin College of Engineering – Night Light: A Proof-of-Concept for Novel Data Collection and Analysis Approach for Nighttime Crosswalk Contrast and Brightness Evaluation

Texas A&M University – Wheels to Care: Navigating NEMT Across America: An NEMT Profile for Each of the 50 States and D.C.

The World Bank – Land-Value Capture in Bogotá: Case Studies on the Valorization Levy 

U.S. National Highway Traffic Safety Administration – Traffic Safety Facts 2023 Data: Speeding

U.S. Congressional Research Service – Federal Civil Aviation Programs: Background and Issues for Congress

TRB In the News

Air Traffic Controllers-small.jpg

U.S. Transportation Secretary Sean Duffy discussed air traffic controller staffing during a hearing of the U.S. House Transportation and Infrastructure Committee last week. In their media coverage of the hearing, NPR and Reuters cited the recent TRB/National Academies consensus report on the topic.

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