BUSINESS TRAVEL 101
Amadeus - A global distribution system (GDS) that provides global communications and
electronic distribution of information for travel service providers. Web site:
Apollo - The name under which the Galileo GDS is marketed in the United States. Web
ARC (Airline Reporting Corporation) - An agency that processes all agency to airline
accountable documents. Web site: http://www.arccorp.com/
Automated Ticket and Boarding Pass (ATB) - Type of printed ticket used by all US
American Express offices. Originally combined the ticket and boarding pass in one
Auxiliary Segments - Any piece of the overall reservation in the computer that is not a
flight booking, such as car or hotel.
Buffer Zone - An area 225 miles wide, extending beyond the northern and southern
United States borders, where special tax provisions apply. Applicable to points in Canada
Circle Trip - A journey from point A to point B and back to point A, which is not via the
same routing, airline or class of service in both directions.
City Pair - The departure and stopover/destination points used to construct a flight
Commuter Carrier - Carrier which operates only smaller equipment between cities which
cannot support major aircraft or traffic usually over a small geographic area.
Computerized Reservations System (CRS) - A computer network through which travel
services are booked, also referred to as GDS or Global Distribution System.
Corporate or commercial rate - A discount rate negotiated with a company or special
customer; a special rate that is sometimes available to all business travelers.
CTD (Corporate Travel Department) - CTD designation is an accreditation that allows a
corporation to obtain an ARC number. This licenses the organization to operate its own in-
house travel agency without selling agency services to the public.
Destination - The last stopping point on a p