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Roundabouts

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…

The Story of the Temporary Roundabouts After Hurricane Florence
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Work NCHRP 572: Roundabouts in the United States

NCHRP Report 572: Roundabouts in the United States

Moving Beyond Speculation into Measurement

  • Research
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Work FHWA TOPR 34: Accelerating Roundabout Implementation in the United States

FHWA TOPR 34: Accelerating Roundabout Implementation in the United States

Providing Answers to Hot Topics in Roundabout Practice

  • Design
  • Research
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Work Roundabouts: An Informational Guide, Second Edition

NCHRP Report 672: Roundabouts: An Informational Guide, Second Edition

Presenting the State of the Art in National Roundabout Practices

  • Design
  • Research
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Work Crossing solutions for pedestrians with vision disabilities

NCHRP Project 03-78 Series: Crossing Solutions at Roundabouts and Channelized Turn Lanes for Pedestrians with Vision Disabilities

Making Challenging Intersections Accessible to Everyone

  • Design
  • Research
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Work barclay drive roundabout

US20-Barclay Drive Roundabout

Roundabout Rodeo Puts Big Rigs Through Their Paces

  • Design
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Work Cabrillo_Presentation

Cabrillo Boulevard Pedestrian and Bicycle Improvements

US-101 Roundabout Gets Californians to the Beach on Foot

  • Design
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Work

NW La Center Road/I-5 Interchange Improvements

A New Freeway Interchange in Just 10 Months

  • Design
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Work Effects-36th-Hill-Catalpa-Roundabout

Boise 36th Street/Hill Road/Catalpa Drive Roundabout

Five-Legged Intersection Gets Thrown a Dogbone

  • Planning
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Work Linder-3rd-Roundabout-Ground

Main Street Linder Avenue 3rd Street Roundabout

A Circular Gateway to Kuna's Revitalized Downtown

  • Planning
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Work Web-Effects-Inman-Sq-simulation

Inman Square Protected Roundabout

Creating the First Peanut-Shaped Roundabout

  • Design
  • Operations
  • Planning
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Work First Freeway Modern Roundabout

Giss Parkway Roundabout Final Design

Tight Space, Big Roundabout

  • Design
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Work Braddock Rd Pleasant Valley Roundabout

Braddock Rd/Pleasant Valley Rd Alternatives Analysis & Roundabout Design

Virginia Roundabout Eliminates 30-minute Waits

  • Design
  • Operations
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Ideas Peanutabout

The Peanutabout: Solving Cambridge’s Skewed Intersection

The intersection of Hampshire Street and Cambridge Street in Cambridge, Massachusetts’ busy Inman Square presents a familiar challenge for cities. Due to its low-angle skew,…

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