TRB Webinar: Research and Lessons Learned Implementing Diverging Diamond Interchanges

TRB conducted a webinar on Wednesday, June 26, 2019, from 2:00 PM to 3:30 PM ET that discussed diverging diamond interchanges (DDIs). An increasing number of states are utilizing DDIs as a way to potentially solve their congestion and safety hotspots. Research is now underway to determine how states may apply DDIs in specific situations.

This webinar discussed previous and current research into DDIs. The presenters connected this research into the design phase in order to show how DDIs may be implemented. The presenters also described some of the lessons learned by practitioners.

This webinar was organized by the TRB Standing Committee on Geometric Design.

The slides are available. Contact Reggie Gillum for a copy of the recorded webinar.

Webinar Presenter

• Bastian Schroeder, Kittelson & Associates, Inc.
• Praveen Edara, University of Missouri at Columbia
• Brian Toombs, Burgess & Niple Inc.

Moderated by: Chris Cunningham, North Carolina State University

Professional Development Hour Information

A certificate for 1.5 Professional Development Hours (PDHs) will be provided to Professional Engineers (PEs) who register and attend the webinar as an individual For approved webinars, TRB’s webinar program awards Registered Continuing Education Provider (RCEP) Professional Development Hour (PDH) credits associated with participation only to the registered individual and not to other members of a group that view the webinar together. To receive PDH credits, please register as an individual and sign into the webinar from your personal computer. After doing this, you may join your group in a meeting room. To be eligible for the credits, individuals must remain signed in for the entire webinar, including for any question and answer session following the presentations.

In addition, advance registration is available until just before the webinar starts. Once the webinar starts, you will be unable to submit your registration. Individuals that are registered for a webinar but do not receive their confirmation emails due to their organization’s internal firewalls should contact the TRB Helpdesk (MyTRB@nas.edu) for assistance in signing in.

Individuals registered as Florida PEs are no longer required to email TRB with your license number to report your attendance. Instead, please use your certificate that TRB provides through RCEP.net as verification of your attendance to the Florida Board of Professional Engineers.

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

This webinar was developed in March 2019. 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. Complaints about registered providers may be sent to RCEP, 1015 15th Street, NW, 8th Floor, Washington, DC 20005. Website: www.RCEP.net.

American Institute of Certified Planners Certification Maintenance Credits

This webinar is approved 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.

Please visit the Certification Maintenance section of APA’s website, Certification Maintenance webpage at https://www.planning.org/cm to claim your credits. You may use the following steps:

1. Log in using your ID# and password.
2. Select View my CM log.
3. Select Add CM-Registered Credits.
4. Using the CM Search option, type in the name of the event or event number (e.g. 21064) and click "Go".

Please note: If searching for an event by Provider, use the search option, type in the name of the provider and click “Go”. From the results below, select by clicking on the name of the provider.

5. From the results below, find your event and select "Add to My Log." If this is a multi-part event, you will have the option to select from a list of activity sessions.
6. Please rate the event, add a comment (optional), and click on the Ethics statement and check the box to confirm. Note: you should see a message indicating the CM reporting period year that you are logging.
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.