Online Courses

Discount Packages

Ethics, Laws and Rules

Live Webinars

Video Presentations

Interactive Courses

OH Timed & Monitored

Courses by Provider

Turbo Roundabouts

COURSE NO: C02-079
Turbo Roundabouts
Course Highlights

This online engineering PDH course describes an alternative form of multi-lane roundabout called a “turbo roundabout.”


Though most roundabouts in the United States are single-lane roundabouts, multi-lane roundabouts are becoming increasingly common. Some of these multi-lane roundabouts have experienced higher than expected frequencies of sideswipe—same direction crashes. In the Netherlands in the 1990s, the turbo roundabout was introduced with the goal of influencing driver behavior and reducing lane change conflicts in a way that would address the crash types occurring in multi-lane roundabouts. In recent years, the Netherlands, Germany, Poland, and Canada have implemented turbo roundabouts with positive effects on safety. The turbo roundabout has the same general operating characteristics as modern roundabouts but utilizes notably different geometrics and applications of traffic control devices. This course describes turbo roundabouts, highlighting the design and traffic control features, operational capabilities, and potential safety benefits.


This 2 PDH online course is intended for civil and transportation engineers concerned with the design and construction of intersections, particularly roundabouts.
Learning Objectives

This PE continuing education course is intended to provide you with the following specific knowledge and skills:

  • Familiarizing with characteristics of a turbo roundabout
  • Knowing the potential benefits of turbo roundabouts
  • Understanding user considerations
  • Understanding location considerations
  • Knowing the safety analysis methods and results
  • Learning how to apply principles of operational analysis
  • Understanding design considerations
  • Familiarizing with cost considerations
Course Document
In this professional engineering CEU course, you need to review the course document titled “Turbo Roundabouts”, which is based on the document published by the U.S. Department of Transportation FHWA, “Turbo Roundabouts”, Publication No. FHWA-SA-20-019.
To view, print and study the course document, please click on the following link(s):
Course Quiz
Once you complete your course review, you need to take a multiple-choice quiz consisting of fifteen (15) questions to earn 2 PDH credits. The quiz will be based on the entire document.
The minimum passing score is 70%. There is no time limit on the quiz, and you can take it multiple times until you pass at no additional cost.
Certificate of Completion

Upon successful completion of the quiz, print your Certificate of Completion instantly. (Note: if you are paying by check or money order, you will be able to print it after we receive your payment.) For your convenience, we will also email it to you. Please note that you can log in to your account at any time to access and print your Certificate of Completion.

To buy the course and take the quiz, please click on: