Roundabouts in the United States
By: Lee Rodegerdts ... [et al.].
Contributors: Rodegerdts, Lee A. 1970-; National Research Council (U.S.). Transportation Research Board.; United States. Federal Highway Administration.; American Association of State Highway and Transportation Officials.
Series: NCHRP report -- 572.; Report (National Cooperative Highway Research Program) -- 572.
Publisher: Transportation Research Board
Published: 2007
Place of publication: Washington, D.C
Language: eng
Number of pages: 115
ISBN-13: 9780309098748
Subjects: Traffic circles -- United States.
Notes: "Research sponsored by the American Association of State Highway and Transportation Officials in cooperation with the Federal Highway Administration."

Includes bibliographical references (p. 113-114).