Research

Several semi-trucks and freight trucks parked side by side at a rest area in Lebec, California.
Several committees joined forces at the 2025 TRB Annual Meeting to spur solutions to a nationwide lack of safe truck ...
Headshot of Steven E. Shladover.
Steven E. Shladover, Research Engineer at the University of California, Berkeley, who specializes in intelligent transportation systems. ...
A small propeller plane descends over a grassy field toward the control tower at Hillsboro Airport near Portland, Oregon.
TRB's Airport Cooperative Research Program has helped airports meet rising demand, improve efficiency, and address challenges for two decades. ...
Headshot of Tia Boyd.
Tia Boyd is a research associate in the Center for Urban Transportation Research's Transportation Planning, Policy, and Processes Program at ...
White pickup truck labeled 'WATER' sprays water onto the surface of a Utah highway with tiger-stripe lane markings. Behind that truck, another white utility vehicle equipped with a retroreflectometer gauges the reflectivity of the wet lane markings.
Utah Department of Transportation is enhancing its data-collection process to ensure that lane markings are easier to see in all ...
Bingrong Sun
Civil Engineer Bingrong Sun is a researcher at the National Renewable Energy Laboratory’s Center for Integrated Mobility Sciences in Golden, ...
John S. Miller
John Miller relishes the road less traveled. He preferred snaking through the side streets of suburban Washington, DC, rather than ...
A public transit bus drives along a dedicated bus lane on Rainier Avenue South in Seattle, Washington.
Public bus systems are a lifeline for millions of workers, students, and residents. But frequent stops and clogged roads can ...
People walking on the paved Lock Haven Levee Trail along the West Branch Susquehanna River in Lock Haven, Pennsylvania.
Whether for recreation or commuting, more people have been hitting the nation’s trails in recent years. The authors present an ...

Michelle Beiler, Bryce Buck, and Steve Herman

No Right Turn on Red sign at traffic light in Honolulu, Hawaii.
Right turns have been the norm at red lights throughout the United States since the 1973–74 oil crisis. Is that ...

Christopher Day, John Shaw, and Tahsin Emtenan

Attendees gathering or walking past the TRB sign at the 2025 TRB Annual Meeting.
To kick off the new year, transportation professionals from all over the world gathered in Washington, DC, for the 2025 ...
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