Atlanta North bound on I75

I go straight through on 75 non rush hour...usually without any problems other than 10 days ago. Even at 8PM it was stop and go on the north side after 285 which has two right hand exits only (on the south side and north side). By North Ave (just pass downtown) you need to be in one of the right three lanes to continue on I-75...85 uses the three left lanes.