January 23-24, 2024
$600.00
15 PDH credits
Room 2600 at ITRE
Research Building IV
909 Capability Drive
Raleigh, NC 27606
The instructors for this course will present the key geometric principles and guidelines used to develop and design a roundabout. They will highlight the differences between older traffic circles and rotaries and new roundabout design features. They will also address the typical questions of why, where, when and how roundabouts should be considered as an appropriate intersection solution. This course includes modules on recent research on U.S. roundabout capacity, roundabout design techniques, and hands-on exercises, including sketching single-lane and multilane roundabouts in a small group.
The basis for the course is NCHRP Report 1043: Guide for Roundabouts, the latest information in the HCM 6th Edition, other state-of-the practice research, and the collective experience of the instructors on roundabout projects and research.
Upon completion of this course, participants will:
- Have a basic understanding of roundabout applications
- Understand the guiding principles of roundabout design
- Be able to perform basic design checks of a single-lane roundabout
- Understand the principles of roundabout design for single-lane and multilane roundabouts
- Be able to sketch a concept single-lane roundabout and multilane roundabout
- Understand the nuances of roundabout design related to vertical design, pedestrian and bicycle treatments, and right-turn bypass lanes
Agenda:
Day 1:
Module 1 – Introduction
Module 2 – Planning
Module 3 – Intersection Cost Comparison Spreadsheet Demo
Module 4 – Traffic Operations Overview
Module 5 – Design Principles
Module 6 – Design Check Tutorial
Module 7 – Geometric Design – Single-Lane Roundabouts
Module 8 – Geometric Design – Details and Applications
Module 9 – Single-lane Sketch Tutorial
Day 2:
Module 1 – Application of Traffic Control Devices
Module 2 – Geometric Design – Multilane Roundabouts
Module 3 – Peer Review
Module 4 – Peer Review Tutorial
Module 5 – Conclusion