Don’t try to drive through Atlanta on a Friday anytime from 3:00 to 7:30 PM. If it’s raining extend those times one hour in both directions. I would leave thursday evening and time your drive through Atlanta VERY late at night. If you do it right the connector (section where 75 and 85 merge, 18 lane highway that cuts through the center of core …
https://www.reddit.com/r/Atlanta/comments/4zg6mn/best_time_to_drive_thru_atlanta_on_a_friday/