Cooperative Research Programs Series
Periodicals and Other Documents
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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.
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Join a Workshop
More than 80 workshops will be featured on the first and last days of the meeting. Find workshop information now! The full program, including complete details on sessions and workshops, will be on the Annual Meeting program page in November.
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Secure Your Visa Today
If you will require a visa to enter the United States to attend the TRB Annual Meeting, January 5 - 9, in Washington, D.C., begin planning for the application process now. Even if you didn't need a visa for a previous Annual Meeting, please check the current requirements.
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Airports Primed to Address Climate Goals with New Resource
Airport operators prepare greenhouse gas emissions inventories to better understand their emissions profile, set more informed goals, monitor performance, and communicate their progress toward meeting environmental goals to key stakeholders.
Airport Greenhouse Gas Emissions Inventory: A Primer (ACRP Web-Only Document 63), from TRB's Airport Cooperative Research Program, provides recommended practices for airport operators to account for and manage airport GHG emissions.
Also see the TRB blog post Address Climate Change and Breathe Easier with Research on Transportation Emissions.
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Submit NCHRP AASHTO Problem Statements
The AASHTO Special Committee on Research and Innovation is soliciting candidate research problems for the fiscal year 2026 National Cooperative Highway Research Program. Submit your problem statement by November 1. NCHRP problem statements may only be submitted by employees of state departments of transportation, FHWA staff, or AASHTO staff on behalf of an AASHTO Committee or Council.
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Evolution in Mobility
New mobility services and their related facilities can further accessibility, efficiency, equity, safety, and sustainability. Find TRB resources and the key knowledge gaps for further research that you need to be part of the evolution.
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In a TRB Transportation Research Record journal article focusing on severe crashes involving younger and older drivers, 14 critical areas are identified for systemic safety improvements in Massachusetts. Key factors include risky behaviors, high-speed roads, and infrastructure quality. Towns were ranked by risk, with top towns accounting for 13.5% of severe younger driver crashes and 14.5% of severe older driver crashes. Sage Perspectives has a feature on the research.
There is an emerging consensus as to how to deploy and operate driverless services that are safe and profitable while enhancing the mobility of goods and people, notes a Forbes article reporting from TRB's Automated Road Transportation Symposium.
Half of Uber and Lyft's trips replace more sustainable options, finds a study in TRB's Transportation Research Record journal that also suggests ways to make ridehailing more sustainable and equitable. The University of California, Davis writes about it.
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