9.4.17 The passenger terminal layout is largely
influenced by the check-in concept and the ticket counter
configuration employed by airlines and handling agencies.
Consequently, it is essential that airlines and handling
agencies are consulted at an early stage of the planning.
9.4.18 The check-in system may be divided into the
following three concepts:
a Centralized check-in concept. Passengers and
baggage are processed at check-in counters located in
a common central area, usually the departure
concourse of the terminal. The counters may be of
different configurations and may be divided into
sections specially designated for individual airlines
airline base or flights flight base or alternatively
passengers may be free to check-in at any counter
positions common base.