Bureau of Transportation Statistics (BTS)
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Chapter 3: Data Elements

Non-Stop Segment Data Elements

The following is a list of data elements required for segment reporting:

DATA TYPE - Indicates the type of record ("S" = segment)

CARRIER ENTITY - A unique 5 digit code assigned by the DOT which denotes a carrier's operating entity

DATA DATE - YYYYMM

ORIGIN - 3 letter OAG airport code.

DESTINATION - 3 letter OAG airport code.

SERVICE CLASS

AIRCRAFT TYPE - Use DOT assigned aircraft codes, last digit denotes aircraft configuration.

1 = pax/cargo
2 = all cargo
3 = convertible/quick change
4 = amphibious/water landing

REVENUE AIRCRAFT DEPARTURES PERFORMED - Number of departures actually performed.

AVAILABLE CAPACITY/PAYLOAD - Aircraft payload capacity reported in pounds. Please remember this includes, seating capacity plus belly space for freight/mail.

AVAILABLE SEATS - Aircraft seating capacity, (number of seats for sale).

REVENUE PASSENGERS TRANSPORTED - Total number of passengers transported over this segment.

REVENUE FREIGHT TRANSPORTED - Total pounds of freight transported over this segment.

REVENUE MAIL TRANSPORTED - Total pounds of mail transported over this segment.

DEPARTURES SCHEDULED - Number of departures scheduled for this segment per CRS or OAG.

Note: This field will be zero when reporting charter/nonscheduled service, since these departures are not scheduled. For Alaskan Air carriers this field will always be zero.

RAMP TO RAMP/BLOCK HOURS - Reported in minutes.

AIRBORNE HOURS - Wheels off to wheels on, reported in minutes.

*** Reminder ***

Segment data are reported exactly how the aircraft flies and what is transported on that aircraft between two points. This is to include any diversions due to weather, maintenance, medical emergencies, any flag stops or tech-stops, etc.

NOTE: Segment data are additive; that is; segments are added together if they have the same data date, origin, destination, service class and aircraft type. This form is the source for the DOT to calculate RPM'S, ASM'S, RTM'S, ATM'S, ASM'S, Departures Performed, Passengers transported for the DOT, FAA, etc.

*** For Reporting File & Record Descriptions Refer to Chapter 8 ***

On-Flight Market Data

The following is a list of data elements required for Market reporting:

DATA TYPE - Indicates the type of record ("M" = market)

CARRIER ENTITY - A unique 5 digit entity code assigned by the DOT which denotes a carrier's operating entity.

DATA DATE - YYYYMM

ORIGIN - 3 letter OAG airport code.

DESTINATION - 3 letter OAG airport code.

SERVICE CLASS

REVENUE PASSENGERS IN MARKET - Total number of passengers enplaned at origin and deplaned at destination.

REVENUE FREIGHT IN MARKET - Total pounds of freight enplaned at origin and deplaned at destination.

REVENUE MAIL IN MARKET - Total pounds of mail enplaned at origin and deplaned at destination.

*** Reminder ***

On-flight Market data will report passengers, freight/mail enplaned between those two points. Market data are flight number driven. So, if your flight number changes, your market will terminate and a new market will begin. Market data are referred to as "enplanement data".

Market data are additive; that is; markets are added together if they have the same origin, destination and service class. (This means market data from all aircraft types; one stop and multiple stops flights can be added together.)

NOTE: This form is the source of "ENPLANEMENTS" used by the DOT, FAA, etc.

*** For Reporting File & Record Descriptions Refer to Chapter 8 ***