I think if you were to go to court you wouldn't get very far by telling the judge "this intersection does not exist." But if you let things progress and the officer got up on the stand to recite his case, he might look at the ticket and go "I observed the defendant [doing whatever] at the intersection of East Lake and Second Avenue" - at which point you jump up and scream "Your Honor - THIS INTERSECTION DOES NOT EXIST! THE OFFICER IS LYING AND I DEMAND AN IMMEDIATE TRIAL FOR PERJURY!"
Well maybe nothing so dramatic. But the point is that what's written on the ticket is likely much less of a defense than having an officer swear under oath that he saw you do something that is not possible. And it's likely he'll just "testify" to what's written on the ticket and put himself in that position.
But that said, in Atlanta traffic court it's most likely that the judge would just ignore that problem, find you guilty and probably tack some other costs on for you acting all smart.