TRB Webinar: Roundabout Design and Development Review

TRB conducted a webinar on May 16, 2013 from 2:00 p.m.- 3:30 p.m. ET that explored how to plan, design, and implement roundabouts. Contact Reggie Gillum at RGillum@nas.edu for information on accessing a link to the recorded webinar.

This webinar will introduce some fundamentals of roundabouts and panelists will discuss specific planning, implementation, analysis, and design issues in the United States. In addition, it will present information on how roundabouts promote statewide, area, and community development through case studies where roundabouts benefited traffic flow, business growth, and economic development. The webinar will likely be of interest to states, counties, and cities that are planning, designing and implementing roundabouts.

This webinar was organized by the TRB Standing Committee on Roundabouts (ANB75).

Webinar Presenters:

• Mark Johnson, MTJ Engineering, LLC
• Howard McCulloch, New York State Department of Transportation
• Lee A. Rodegerdts, Kittelson & Associates, Inc (KAI)

Moderated by: Brian Walsh, Washington State Department of Transportation

Webinar Outline:

• Introduction, Objectives, and Plans for the Roundabout Committee's Webinar Series (Brian Walsh);
• Planning and Development Enhancement with Roundabouts: Why and How Roundabouts Are Valuable in Enhancing Business Growth and Economic Development (Mark Johnson);
• Basics of Lane Determination and Layout (Howard McCullough);
• Operational Analysis Fundamentals: Fundamentals of Roundabout Operational Analysis and Capacity Quality and Assurance (Lee Rodergerdts); and
• Question and Answer Period (Brian Walsh).

The first 60 minutes of the webinar is for presentations and the final 30 minutes is reserved for audience questions.

Learning Objectives:

• To apply the principles of promoting and enhancing growth by implementing roundabouts given the traffic needs of a proposed developing area.
• To recognize where roundabouts will promote and enhance business and economic growth.
• To calculate a preliminary determination of the number of lanes needed in a roundabout given traffic flow data at an intersection.
• To design the basic dimensions of a roundabout that will fit within the available right-of-way and provide safety.
• To recognize the variables involved in operational analysis of a roundabout and then evaluate how a roundabout will operate.
• To understand how capacity relates to key geometric elements of a roundabout and evaluates its likely operation.

To ensure that you receive notices about upcoming webinars, please subscribe to the TRB Transportation Research E-Newsletter.

Registration information:

There is no fee for employees of TRB sponsors who register using their work email address. In addition to employees of TRB sponsor organizations, the following are eligible to receive complimentary webinar registration:

• TRB and National Academies employees
• Chairs of TRB standing committees, sections, or groups
• Members of the media
• Employees of tribal governments
• Congressional staff members

Other sites must pay $99 per site. View our pricing page for details.

After registering you will receive a confirmation email containing information about joining the webinar.

Professional Development Hours:

A certificate for 1.5 Professional Development Hours (PDH) will be provided to Professional Engineers (PEs) who register and attend the webinar as an individual. For groups, only the person that registers and attends the session will receive a PDH certificate.

Individuals registered as Florida PEs are required to email Reggie Gillum, RGillum@nas.edu, with their license number.

Please check with your licensing board to ensure that TRB webinar PDHs are approved by your board.

This webinar was developed in March 2013. TRB has met the standards and requirements of the Registered Continuing Education Program (RCEP). Credit earned on completion of this program will be reported to RCEP by TRB. Certificates of Completion will be issued to individuals who register for and attend the entire webinar session. Complaints about registered providers may be sent to RCEP, PO Box 1686, Clemson, SC, 29633. Website: www.RCEP.net.

American Institute of Certified Planners Certification Maintenance Credits:

This webinar is pending approval by the American Institute of Certified Planners for 1.5 Certification Maintenance Credits. Please make sure that you register for this session and log-in using the link that TRB provides to your email account. We use this as your record that you attended this session. TRB only maintains the records of attendees who use their email address to log into the webinar, and cannot verify attendance of individuals who view the webinar without personally logging into the session.

To report your CM credits, visit planning.org/CM

1. Login using your ID# and password
2. Select My CM log
3. Select Add Credits
4. Under Browse you have the option of searching by Date, Provider, or Distance Education and using the search box to type in the name of the event or activity and clicking go
5. A pop-up box will appear. If this is a multi-part event you will have the option to select from a list of activities
6. Please rate, add a comment (optional), and click on the Ethics statement and answer
7. Click submit and the CM credits should appear in your CM log

If you have problems reporting your CM credits or have general questions about the CM program, please contact AICPCM@planning.org.

Registration questions? Contact Reggie Gillum at RGillum@nas.edu.