I.T.P vs. O.T.P.
Visitors to Atlanta will find themselves in one of two areas; inside or outside of the perimeter. Interstate 285 encircles most of Atlanta and serves as a barrier to the suburbs. People from inside the perimeter will tell you all about the lifestyle and cultural differences separated by the eight lanes of traffic. People far outside the Atlanta city limits, like those in the suburbs of Roswell and Sandy Springs, still claim The A. So, when someone says they’re I.T.P. or O.T.P., they are referring to which side of the asphalt they’re from in the metro Atlanta area.