Roundabout Design - Vertical Geometry

In this course, we are going to cover the vertical design of a roundabout. The vertical design of a roundabout begins with the development of the central island and approach roadway profiles. The development of each profile is an iterative process that involves tying the elevations of the approach roadway profiles into a smooth profile around the central island. Since this is an iterative process and can be very time-consuming, we will only show the step-by-step details for one approach in this course. You can apply that same process to the other legs of the roundabout.

Duration: 1h 20m

What You'll Learn

  • Exercise 1 – Creating Profiles on the Inner and Outer ICD
  • Exercise 2 Part 1 – Creating Profiles for the Northbound Entry and Southbound Exit
  • Exercise 2 Part 2 – Creating Profiles for the Northbound Entry and Southbound Exit
  • Exercise 2 Part 3 – Creating Profiles for the Northbound Entry and Southbound Exit
  • Exercise 3 – Profile the Splitter Islands
  • Exercise 4 Part 1 – Creating a Terrain Model of the Roundabout and 3D Modeling
  • Exercise 4 Part 2 – Creating a Terrain Model of the Roundabout and 3D Modeling

About the Author

Bentley Learn is backed by the expertise and innovation of Bentley Systems, a global leader in infrastructure engineering software for more than 40 years. Serving professionals across transportation, water, energy, buildings and other critical infrastructure sectors, Bentley has helped shape the technologies and workflows used to design, build and operate some of the world’s most important infrastructure projects.

Drawing on this deep industry knowledge, Bentley Learn provides expert insights, best practices and real-world perspectives that help professionals stay informed and effective in an evolving infrastructure landscape.

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