Devoted Exclusively to Roundabouts
Ourston Roundabout Engineering, Inc. is a corporation devoted exclusively to the research, policy, planning, education and design of modern roundabouts. We operate throughout North America and continue to be the most experienced roundabout planning and design team. Leif Ourston pioneered roundabouts in the United States leaving green footprints since 1990 when the first modern roundabout was placed in Summerlin, Las Vegas. With a staff of nine in the U.S. and four in Canada we reduce carbon footprints from infrastructure with safe, high-capacity roundabouts in demanding locations. We assure agencies of the correct site selection and design quality with the highest degree of skill and professionalism, applying science and deep experience with corporate and personal commitment to our valued clients. Ourston is leading the Roundabout Revolution in North America with several design accomplishments:
- The first two modern roundabouts (Las Vegas, Nevada, 1990).
- Maryland's first roundabouts (Lisbon and Gaithersburg, 1993).
- The first three roundabout interchanges (Vail and Avon, Colorado, 1995 and 1997).
- America's first string of roundabouts to eliminate congestion (Avon, Colorado, 1997).
We have helped several US states and Canadian provinces begin their roundabout programs, and have researched and published articles on policy, education, design standards and rehabilitating failed designs. Our vast library of national and international references underpins our evidence-based empirical approach to the broad services we provide. We have led the education and acceptance scene producing four roundabout videos, wrote the design manual Roundabout Design Guidelines and were panel reviewers of both the 2000 U.S. Federal Highway Administration (FHWA) Roundabout Informational Guide and the new 2010 FHWA guide. We wrote the TAC Synthesis of North American Roundabout Practice and the upcoming Roundabout Signs and Markings division of the TAC MUTCD for Canada.