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eThe process

IATA has the following figure which describes the baggage process at a high level.

The figure is a good description of the high level process. However, to understand what happens inside a baggage handling system (BHS) it is necessary with a more detailed understanding of the steps 2, 3, 4 and 5. 

Events and timestamps

It is necessary to collect data about a bag from many places in the baggage process to be able to:

  • to document what actually happened to a bag, including finding it if it became lost.
  • predict in real time if a bag is likely to become a problem bag, which makes it possible to avoid it.
  • analyze the baggage processes to find problem areas and to document conformance to any service level agreement.

To easily understand the collected data the data elements need to be strictly defined and the same set of data definitions used from all data sources. The data sources might send data using different formats. All formats should then be transformed to the common format.

All further discussion here is based on data elements defined by the Airport Data Dictionary, Mapping from IATA data formats are documented here: Mapping of IATA baggage data formats to ADD

IATA Process stepEvent (BagEventCode)Named timestampNamed timestamp description / Comment
1BagTagGeneratedBTGRT

The "Bag Tag Generated Time" is the DateTimeUTC when the bag tag was generated (printed). This will typically result in the generation of a bag source message (BSM). BTGRT corresponds to the BagEventCode "BagTagGenerated". Always UTC.

Not all bag tags printed are actually used on baggage that are checked

1BagCheckInAttempt
BagChecked
BFCAT

The "Bag First Check in Attempt Time" is the DateTimeUTC when the bag first was attempted checked in. For most bags this will be the same as BACIT as they do not experience a BagRejected event. This corresponds to the first "BagChecked" or "BagCheckInAttempt" BagEventCode. Always UTC.

A BagCheckInAttempt can happen several times for a bag, typically from a self service baggage drop (SBD).

1BagCheckedBACIT

The "Bag Actual Checked In Time" is the DateTimeUTC when the bag was checked and delivered to the baggage handling system. This corresponds to the BagEventCode "BagChecked". This should occur when it is impossible for the passenger to decide not to check the baggage after all. It is however possible for the bag to be rejected for technical reasons (too long). Always UTC.

1BagRejected

A BagRejected can happen several times for a bag, typically from a self service baggage drop (SBD).

1BagAcceptedByBhsBABBT

The "Bag Accepted By BHS Time" is the DateTimeUTC when the bag was checked and delivered to the baggage handling system (BHS). This corresponds to the BagEventCode "BagAcceptedByBhs". The bag is now under the control of the BHS and can't be accessed by the passenger. Always UTC.

2BagToSecScreen
BTFST

The "Bag To First Security screening Time" is the DateTimeUTC when the first security screening of the bag started. This corresponds to the first BagEventCode "BagToSecScreen". Multiple security screenings of a bag is possible, but will not change BTFST. Always UTC.

2BagToSecScreenBTAST

The "Bag To Automatic Security screening Time" is the DateTimeUTC when the (first) automatic security screening of the bag started. This corresponds to the (first) BagEventCode "BagToSecScreen" for an automatic security screening. Multiple security screenings of a bag is possible, but will not change BTAST. Always UTC.

2BagToSecScreenBTMST

The "Bag To Manual Security screening Time" is the DateTimeUTC when the (first) manual security scan of the bag started. This corresponds to the (first) BagEventCode "BagToSecScreen" for a manual security screening. Multiple security screenings of a bag is possible, but will not change BTMST. Always UTC.

2BagToSecScreenBTL1T

The "Bag To L1 security screening Time" is the DateTimeUTC when the Level 1 security scan of the bag started. This corresponds to the BagEventCode "BagToSecScreen", with some additional information (typically BagEventLocation) identifying it as a Level 1 security screening. Always UTC.

2BagToSecScreenBTL2T

The "Bag To L2 security screening Time" is the DateTimeUTC when the Level 2 security scan of the bag started. This corresponds to the BagEventCode "BagToSecScreen", with some additional information (typically BagEventLocation) identifying it as a Level 2 security screening. Always UTC.

2BagToSecScreenBTL3T

The "Bag To L3 security screening Time" is the DateTimeUTC when the Level 3 security scan of the bag started. This corresponds to the BagEventCode "BagToSecScreen", with some additional information (typically BagEventLocation) identifying it as a Level 3 security screening. Always UTC.

2BagToSecScreenBTL4T

The "Bag To L4 security screening Time" is the DateTimeUTC when the Level 4 security scan of the bag started. This corresponds to the BagEventCode "BagToSecScreen", with some additional information (typically BagEventLocation) identifying it as a Level 4 security screening. Always UTC.

2BagToSecScreenBTL5T

The "Bag To L5 security screening Time" is the DateTimeUTC when the Level 5 security scan of the bag started. This corresponds to the BagEventCode "BagToSecScreen", with some additional information (typically BagEventLocation) identifying it as a Level 5 security screening. Always UTC.

2BagFromSecScreenBFLST

The "Bag From Last Security screening Time" is the DateTimeUTC when the security screening of the bag is finished. This corresponds to the last BagEventCode "BagFromSecScreen". Multiple security scans of a bag is possible, all should update BFLST. Always UTC.

2BagFromSecScreenBFAST

The "Bag From Automatic Security screening Time" is the DateTimeUTC when the (last) automatic security screening of the bag finished. This corresponds to the (last) BagEventCode "BagFromSecScreen" for automatic security screening. Multiple security screenings of a bag is possible, all should update BFAST. Always UTC.

2BagFromSecScreenBFMST

The "Bag From Manual Security screening Time" is the DateTimeUTC when the (last) manual security screening of the bag finished. This corresponds to the (last) BagEventCode "BagFromSecScreen" for a manual security screening. Multiple manual security screenings of a bag is possible, all should update BFMST. Always UTC.

2BagFromSecScreenBFL1T

The "Bag From L1 security screening Time" is the DateTimeUTC when the Level 1 security scan of the bag finished. This corresponds to the BagEventCode "BagFromSecScreen", with some additional information (typically BagEventLocation) identifying it as a Level 1 security screening. Always UTC.

2BagFromSecScreenBFL2T

The "Bag From L2 security screening Time" is the DateTimeUTC when the Level 2 security scan of the bag finished. This corresponds to the BagEventCode "BagFromSecScreen", with some additional information (typically BagEventLocation) identifying it as a Level 2 security screening. Always UTC.

2BagFromSecScreenBFL3T

The "Bag From L3 security screening Time" is the DateTimeUTC when the Level 3 security scan of the bag finished. This corresponds to the BagEventCode "BagFromSecScreen", with some additional information (typically BagEventLocation) identifying it as a Level 3 security screening. Always UTC.

2BagFromSecScreenBFL4T

The "Bag From L4 security screening Time" is the DateTimeUTC when the Level 4 security scan of the bag finished. This corresponds to the BagEventCode "BagFromSecScreen", with some additional information (typically BagEventLocation) identifying it as a Level 4 security screening. Always UTC.


BagFromSecScreenBFL5T

The "Bag From L5 security screening Time" is the DateTimeUTC when the Level 5 security scan of the bag finished. This corresponds to the BagEventCode "BagFromSecScreen", with some additional information (typically BagEventLocation) identifying it as a Level 5 security screening. Always UTC.

2BagSecScreenRejected

The "Bag Tag Generated Time" is the DateTimeUTC when the bag tag was generated (printed). This will typically result in the generation of a bag source message (BSM). BTGRT corresponds to the BagEventCode "BagTagGenerated". Always UTC.

With multi level security this can occur several times.

2/3BagToMCSBTMCT

The "Bag To Manual Coding station Time" is the DateTimeUTC when the bag first enters a manual coding station (MCS). This corresponds to the BagEventCode "BagToMCS". Multiple visits to MCS by a bag is possible, but will not change BTMCT. Always UTC.

The event can occur several times, but will not update the timestam.

2/3BagFromMCSBFMCT

The "Bag From Manual Coding station Time" is the DateTimeUTC when the bag enters a manual coding station (MCS) for the last time. This corresponds to the last BagEventCode "BagFromMCS". Multiple visits to MCS by a bag is possible. Each visit will update the BFMCT. Always UTC.

This can occur several times. The timestamp is updated each time.

4BagToEBS

The "Bag Tag Generated Time" is the DateTimeUTC when the bag tag was generated (printed). This will typically result in the generation of a bag source message (BSM). BTGRT corresponds to the BagEventCode "BagTagGenerated". Always UTC.

Most likely only once.

4BagFromEBS

The "Bag Tag Generated Time" is the DateTimeUTC when the bag tag was generated (printed). This will typically result in the generation of a bag source message (BSM). BTGRT corresponds to the BagEventCode "BagTagGenerated". Always UTC.

Most likely only once.

5BagDeliveredFromBHS
BFBHT

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5/6BagRemovedFromBHS

The "Bag Tag Generated Time" is the DateTimeUTC when the bag tag was generated (printed). This will typically result in the generation of a bag source message (BSM). BTGRT corresponds to the BagEventCode "BagTagGenerated". Always UTC.

7BagLoadedOnAircraftBAOAT

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8BagUnloadedOffAircraftBAUAT

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10BagToTransferBATTT

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11BagOnBeltBAOBT

The Bag Actual On Belt Time is the DateTimeUTC when the bag actually is placed on the baggage belt/carousel and soon will be ready for pick up by the passenger. This corresponds to the BagEventCode "BagOnBelt". Always UTC.

12BagToPassengerBATPT

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It is rare to have this timestamp.





1-10BagInfoReceived

1-10BagTagScanned

Durations

Based on the events and timestamps above the following durations have been defined.

DurationDescription



BIMCD

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Counts

The following baggage related counts have been defined.

CountDescription



BIMCD

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