I will be traveling south on I-75 to Florida in a few weeks. My path will take me through Atl. on a Thursday morning. If I leave home at around 5am that will put me at the Northern I-75 - I-285 interchange around 7:45am. Here's my question, how bad will the traffic be at that time (I'm thinking really bad), would it help if I left a little (up to 1 hour) earlier or latter? Also, what's the best route? I-75 S, I-285 W, etc.?