Atlanta traffic is insane and getting worse every day. I have been thru twice recently on trips to NC. First trip I took 85 north to 285 around to 85 again. I went thru noonish on a Thursday. It was crazy. The return was on Monday. We left Mt Pisgah early so to beat the afternoon rush, again horrible.
Second trip I left on Wednesday morning, 85 right thru town. Just as bad or worse than 285, again mid morning, should have been after the rush hour. Lanes in downtown are narrow. Return on Friday, we left Cherokee fairly early and it was still a mess on 285.
Only time the Atlanta traffic is pleasant is in the middle of the night. Quite frankly I would plan my departure from Knoxville so I went thru about midnight or 1 am.
I live south of Atlanta off of I-85 and work at the airport. I get all over the south side and enough elsewhere to know I don't like it.
Be sure and check the TDOT web site for closures, there may be some nighttime ones on I-75
https://www.tn.gov/tdot/news/2019/8/9/weekly-east-tennessee-construction-report-for-august-8-14--2019.htmlCharles