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Rail (NCRRP)
Synthesis Panels
Highway
Transit
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IDEA
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Programs

Cooperative Research
Highway (NCHRP)
Transit (TCRP)
Airport (ACRP)
Behavioral Traffic Safety (BTSCRP)
Freight (NCFRP)
Hazardous Materials (HMCRP)
Rail (NCRRP)
Synthesis
Highway
Transit
Airport
Truck & Bus Safety
Innovations Deserving Exploratory Analysis (IDEA)
Legal Research
Marine Board
Consensus and Advisory Studies
Strategic Highway Research Program 2 (SHRP 2)
SHRP 2 Naturalistic Driving Study Data Access
SHRP 2 Archives
Transportation Research Information Services (TRIS)


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TRID (A Transportation Research Database)
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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.
New TRB Publications

HCM cover.jpgGet up to speed! Look for updated chapters in the Highway Capacity Manual. Updates to the HCM address limitations of previous methodologies while redesigning them to be more streamlined and consistent with the fundamental speed–flow–density relationship.

 
Find updates in:
·   Chapter 13 – Freeway Weaving Segments 
·   Chapter 14 – Freeway Merge and Diverge Segments 
·   Chapter 27 – Freeway Weaving: Supplemental 
·   Chapter 28 – Freeway Merges and Diverges: Supplemental


construction crew pexels-iwashere-15109999 sm.jpg

The construction industry consistently reports higher than average rates of suicide and drug use. Programs that promote psychological wellbeing and address behavioral health challenges are inconsistent across transportation agencies and guidance spcifically for the transportation workforce is limited. A strong majority of the state departments of transportation surveyed have formal programs or initatives for mental health and wellbeing, substance use and addiction, or suicide prevention. TRB's NCHRP Synthesis 658: Mental Health, Suicide Prevention, and Addiction Mitigation in Construction and Maintenance documents and assesses the state of practice across DOTs.

ACRP Synthesis 141: Total Rewards for Airport Sponsor Employees

The Status of Informal Science and Engineering Education: Proceedings of a Convocation

Events

February 25 - TRB Webinar: Improving Mobility in Rural and Tribal Communities

February 27 – TRB Webinar: Rethinking the Road Test to Identify High-Risk Drivers

March 2 - TRB Webinar: The Power of Clear Language in Highway Safety Documentation

April 28 - 29 - Join the Marine Board spring meeting in Irvine, CA. Presentations will focus on how advanced analytics can support financial and operational decision making across the public and private sector domains of the Marine Transportation System in the face of changing risk profiles, potential supply chain shifts, technology adoption, emerging grey zone threats, and regulatory changes.

News for You

 bus pedestrian.jpg

Share your ideas for public transportation issues needing more research. TRB's TCRP Synthesis Program state-of-the-practice documents highlight approaches that practitioners have found successful. If you need to know what's working for an agency in a situation like yours, submit a topic by March 27. 

Research Roundup

Minnesota Department of Transportation - Future of Weight Tickets

The University of Texas Rio Grande Valley - Advanced Model for Predicting Buckling in Rails

University of Michigan Transportation Research Institute - COVERT: Cognitive Internet of Vulnerable Road Users in Traffic

Southern Plains Transportation Center - Fast Detection and Prediction of Slippery Roadway Conditions for Enhanced Safety

Center for Connected and Automated Transportation - Making CAV Deployments Compatible with Complete Streets Objectives for Safe and Efficient Operation Phase II

Transportation Infrastructure Durability Center at the University of Maine - Enhancing the Durability of Bridge Decks by Incorporating Microencapsulated Phase Change Materials (PCMs) in Concrete

Congressional Research Service - Surface Transportation Reauthorization: Federal Highway Programs

Federal Highway Administration - Portland Limestone Cement Variability

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