Ideas
Ideas
Overcoming the Fear of the Roundabout: How to Get the First Roundabout in Your Community
Today, there are more than 10,000 roundabouts in the United States—but each community that has embraced this form of intersection has gone through the process of starting from zero.
Ideas
Concept to Completion: How to Prevent Transportation Plans from Sitting on a Shelf
Read why the collaboration of disciplines (research, planning, operations, design) at all stages is integral to a project’s success.
Work
North 2nd Street Multimodal Project
Transforming Traffic Flows for Enhanced Safety in Harrisburg, PA
Work
US 20 at Tumalo Multi-Lane Roundabout
Addressing Intersection Challenges with a Multi-Lane Roundabout
Work
MassDOT Roundabout Guide
A Guide That's Changing the Way We See Roundabouts
Ideas
Findings From the City of Bend’s Roundabout Metering Test
Since the early days of modern roundabouts in the United States, this form of intersection control has grown in popularity as a cost-effective and often safer alternative…
Ideas
Bringing Modern Roundabouts to Maryland
How Ed Myers’ “circular reasoning” helped launch the first statewide roundabout program in the United States “What is a modern roundabout? Where are they used?…
Work
31st/Cowlitz Way Roundabout Expansion
A Roundabout Way to Modify a Crowded Interchange
Ideas
8 Creative Roundabout Projects for National Roundabouts Week
It’s National Roundabouts Week! To celebrate, we’re highlighting a few of our favorite roundabout design projects over the years. The Roundabout We Call “The Dogbone”…
Ideas
The Latest Tools in Roundabout Evaluation
Roundabouts continue to be constructed at a rapid pace in the United States. We have well over 5,000 roundabouts nationwide, and that number is quickly…
Ideas
The Story of the Temporary Roundabouts After Hurricane Florence
There was no way to fully prepare for the wettest tropical cyclone on record in the Carolinas. Hurricane Florence made landfall in September 2018. A…
Work
NCHRP Report 572: Roundabouts in the United States
Moving Beyond Speculation into Measurement
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FHWA TOPR 34: Accelerating Roundabout Implementation in the United States
Providing Answers to Hot Topics in Roundabout Practice
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NCHRP Report 672: Roundabouts: An Informational Guide, Second Edition
Presenting the State of the Art in National Roundabout Practices
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NCHRP Project 03-78 Series: Crossing Solutions at Roundabouts and Channelized Turn Lanes for Pedestrians with Vision Disabilities
Making Challenging Intersections Accessible to Everyone
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US20-Barclay Drive Roundabout
Roundabout Rodeo Puts Big Rigs Through Their Paces
Work
Cabrillo Boulevard Pedestrian and Bicycle Improvements
US-101 Roundabout Gets Californians to the Beach on Foot
Work
NW La Center Road/I-5 Interchange Improvements
A New Freeway Interchange in Just 10 Months
Work
Boise 36th Street/Hill Road/Catalpa Drive Roundabout
Five-Legged Intersection Gets Thrown a Dogbone
Work
Main Street Linder Avenue 3rd Street Roundabout
A Circular Gateway to Kuna's Revitalized Downtown
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Giss Parkway Roundabout Final Design
Tight Space, Big Roundabout
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