Document by the Turner-Fairbank Highway Research Center, part of the United States Federal Highway Administration.

Shows different facilities, with a focus on Alaska. Also discusses technical aspects.

Written by road engineers. Includes a history, a description of design basics, photos, and links.

Photographs and description of this complex intersection in England.

Consultancy. Includes a forum. Includes a webcam of the first modern roundabout in the country, in Hamilton, Ontario.

Information including a list of all in the United States and Canada.

Gives descriptions and comparisons to traffic circles. Includes a photo gallery of selected examples.

Overview and photographic examples. Part of a designer's website.

Resource page focusing on the Northeast U.S. but covering a wide area.

Observations, with photographs, of the Magic Roundabout in Swindon, England.