1.6K views · 20 reactions | NEW: The state’s first major Diverging Diamond traffic interchange at Interstate 17 and Happy Valley Road in north Phoenix is scheduled to open to traffic on Sunday. MORE: bit.ly/2Fd412Q | Arizona Department of Transportation | Facebook

FEEDBACK: ADOT is introducing a new interchange concept as an upgrade for the Houghton, I-10 interchange. Do you like this concept? >> http://bit.ly/2E2VsWn | KOLD News 13

Drivers will soon be able to use the new I-40 Interchange at Donelson Pike near Nashville International Airport. It’s called a "Diverging Diamond Interchange," and now is the perfect time to refresh your memory on how they work. The instructional video below can help. The current configuration cannot accommodate current and future traffic demands of Donelson Pike and BNA. This new DDI interchange will increase capacity and provide efficient access to the airport, I-40, and other nearby businesse