Origins Of Roundabouts -- First Development Of Different Roundabout Types -- Modern Layout Design.- Recent Alternative Types Of Roundabouts -- Alternative types of roundabouts at development phases -- General criteria for calculating the capacities of alternative types of roundabouts -- Non-motorized participants on alternative types of roundabouts.- Possible Ways of Roundabouts' Development.

This book presents a history of roundabouts, an introduction to their design, calculations of their capacity and traffic-safety features. It describes the key features of standard roundabouts and their limitations. Alternative types of roundabouts are a fairly recent development and have only been implemented in a few countries to date. The book illustrates a broad variety of these recent alternative types of roundabouts, as well as proposed types still in the development phase, explaining for each the specific needs it meets, its advantages and drawbacks. In closing, the book offers an outlook on the role of roundabouts in future street traffic.