Not quite sure what you mean, but all DFW based pilots go through all training in ATL. They put you up in a hotel. After that, youll either go through IOE in ATL or DFW, just depends on their needs. Then you have 4 days to move and be ready for work in DFW. As far as where people live, you name it. Its no different in ATL, people are basically everywhere. I think the majority are north of the city, and quite a few in the arlington area. Some of them can chime in here.