As perimeter-area drivers get accustomed to the new diverging diamond interchange at Ashford Dunwoody Road and I-285, some Gwinnett County commuters will soon do the same. A similar project is planned for Pleasant Hill Road and I-85. Transportation officials say the diverging diamond has improved traffic in states like Missouri and Utah. But it’s new to Georgia. Gwinnett County transportation director Kim Conroy says the design shifts cars to the left-hand side of the road as they enter the interstate.
“You have such a heavy left turn movement,” he explains, “That what that does is it allows those folks to go straight through now and continue moving without that left-turn phase.”
And, Conroy says, the project is relatively inexpensive.
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