Figure 8.2 (a) Decentralized terminals of Dallas-Fort Worth International Airport. (Dallas-Fort Worth International Airport (b) Aerial view of Atlanta Hartsfield International Airport. must be segregated (Blow 1996, 2005) The complicated door system is centrally operated by a computerized control room with extensive closed-circuit-television monitoring.Figure 8.3 shows conceptualized processing outbound flow patterns for centralized and decentralized