This is an online course. This online course will describe: what are roundabouts and how do they work? Why roundabouts are a viable solution to intersection control. The benefits compared to other alternatives. The research and experience that support the application of roundabouts on local, collector and arterial roads. The variety of roundabouts - why one design style does not fit all.

The course will guide transportation practitioners through the various evaluation and design aspects for roundabouts taking into consideration other travel modes. It will cover designs of a variety of different types of roundabouts from high capacity multi-lane roundabouts to single-lane roundabouts to mini-roundabouts. Possible errors in the roundabout design process and how to minimize them.

Topics include benefits of roundabouts, roundabout types and applications, geometric design, signs and markings, high speed and low speed, capacity analysis, traffic operations, multimodal aspects, safety, system considerations, and fixing problem roundabouts.

At the end of this course, students will understand the principles and working concepts of all major areas of roundabout design and operation as practiced today. Students will learn about capacity analysis, crash rate experience, right of way impacts, geometric design principles, sight distance criteria, traffic operations, system considerations, pedestrian and bicycle treatments.

This course will benefit transportation professionals who are involved in the approval, planning, and design of intersections and who are considering installing roundabouts as an alternative to traditional intersection controls. This course is targeted to individuals with some background in the design of intersections, although such background is not a pre-requisite for attending this training.

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Instructors:

Philip Demosthenes

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