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pilot
CLIMBING FLIGHT LEVEL ONE
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atc
LOT THREE FIVE THREE ROGER DESCEND FLIGHT LEVEL THREE TWO ZERO
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pilot
CONTINUE VIA LIMA AND ONE TWO ONE POINT
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pilot
ONE FOUR HUNDRED AND
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atc
AIR BERLIN EIGHT SEVEN VICTOR DESCEND TO FLIGHT LEVEL ONE SEVEN ZERO
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atc
FINNAIR SEVEN EIGHT TWO ROMEO HELLO RADAR CONTACT
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atc
SINGAPORE THREE TWO FIVE
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atc
SWEDESTAR ZERO FIVE ONE REDUCE SPEED ONE SIX ZERO KNOTS TILL FOUR MILES FINAL
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pilot
THOUSAND FEET QNH ONE ZERO ONE EIGHT CLEARED FOR ILS APPROACH RUNWAY THREE ONE SKYTRAVEL ONE TWO ZERO ONE
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atc
WIZZAIR FOUR ROMEO PAPA TAXI PAPA LIMA GOLF
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pilot
CLEARED TO LAND ONE
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pilot
SEVEN ECHO CHARLIE IS READY FOR DEPARTURE
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atc
LUFTHANSA FIVE YANKEE VICTOR RUNWAY ONE THREE CLEARED TO LAND WIND ZERO SEVEN ZERO DEGREES
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atc
SKYTRAVEL ONE ZERO THREE FOUR READY FOR DEPARTURE
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pilot
RIGHT HEADING ONE EIGHT ZERO KLM FIVE FIVE TANGO
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atc
SKYSHUTTLE ONE ONE FOUR ZERO NOW DESCEND FLIGHT LEVEL THREE THREE ZERO
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atc
BRIT AIR FIVE NINER ZERO PRAHA RUZYNE TOWER CONTINUE APPROACH
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atc
RUSSIA TWO FIVE SEVEN DESCEND FLIGHT LEVEL TWO NINER ZERO
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atc
CSA NINER SEVEN NINER PROCEED TO VLM THEN VLM ONE ROMEO ARRIVAL
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pilot
CLEARED TAKEOFF RUNWAY ONE THREE AIRFRANS ONE NINER EIGHT ROMEO
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pilot
OK THANK YOU
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pilot
ONE THREE TWO ONE FIVE FIVE AND RAPET DIRECT LUFTHANSA CARGO THANK YOU
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atc
SKYTRAVEL ONE ZERO THREE SIX GOOD AFTERNOON HOLD SHORT OF RUNWAY ONE THREE
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pilot
PRAHA GOOD MORNING SUNEXPRESS NINER FIVE SEVEN FLIGHT LEVEL THREE SEVEN ZERO
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pilot
WE NEED ABOUT ONE MINUTE LOT FIVE TWO SIX
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pilot
DIRECT TO LIMA DELTA ZULU AEROSVIT TWO ONE ZERO
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pilot
IF ABLE AEROFLOT ONE FOUR THREE
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atc
CSA SIX NINER ONE LEFT HEADING ONE SIX ZERO CLEARED ILS APPROACH RUNWAY ONE THREE
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pilot
DESCENDING FLIGHT LEVEL SIX ZERO QUALITY NINER ONE ROMEO
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atc
BEAIR FIVE FIVE TWO DESCEND FLIGHT LEVEL NINER ZERO
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pilot
GOLF BRAVO AND ZULU
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pilot
TWO THREE ON THE SQUAWK WIZZAIR FIVE NINER ONE
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pilot
PRAHA RADAR GOOD AFTERNOON ROMEO SIERRA YANKEE NINER SEVEN ONE FIVE FLIGHT LEVEL THREE FOUR ZERO
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pilot
INBOUND PATKA FLIGHT LEVEL THREE FOUR ZERO
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pilot
CONTINUE PRESENT HEADING CSA ONE EIGHT
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pilot
PRAHA HELLO LUFTHANSA CARGO EIGHT FIVE ZERO NINER FLIGHT LEVEL THREE FOUR ZERO
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pilot
TWO FIVE GOLF
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atc
SORRY THREE ONE ZERO IS MAXIMUM I CAN OFFER YOU NOW
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atc
AEROFLOT TWO EIGHT SEVEN HELLO RADAR CONTACT PROCEED TO MIKOV
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atc
LOT THREE SIX TWO SQUAWK ONE FOUR SIX SIX CLIMB FLIGHT LEVEL THREE THREE ZERO
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atc
DELTA LIMA BRAVO REPORT PRESENT LEVEL
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pilot
LUFTHANSA EIGHT VICTOR ROMEO LEAVING OUT
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atc
SKYTRAVEL ONE ONE ZERO THREE TOWER GOOD MORNING CONTINUE APPROACH
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pilot
TOWER HELLO LUFTHANSA NINER ECHO LIMA
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atc
QUALITY NINER ONE ROMEO PRAHA
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pilot
SEVEN ONE FIVE PRAHA ON ONE THREE FIVE ONE THREE FIVE GOOD BYE
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pilot
PRAHA LUFTHANSA FOUR CHARLIE KILO ANY CHANCE DIRECT PEPIK
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pilot
LEFT HEADING THREE THREE ZERO THANK YOU EASY THREE EIGHT PAPA GOLF
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pilot
CLEARED FOR TAKEOFF RUNWAY ONE THREE AIRFRANS THREE NINER THREE VICTOR BYE
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pilot
FLIGHT LEVEL ONE HUNDRED EASY FIVE THREE KILO
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atc
JOBAIR ZERO FIVE ONE PAPA DESCEND TO FLIGHT LEVEL ONE FOUR ZERO
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atc
CSA NINER TWO ONE DESCEND FOUR THOUSAND FEET CLEARED ILS THREE ONE
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pilot
PRESENT HEADING ROGER KLM FIVE FIVE TANGO
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atc
RYANAIR SIX SEVEN TWO NINER HELLO PRAHA RADAR CONTACT STANDBY FOR
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atc
LUFTHANSA SEVEN ONE EIGHT SQUAWK ONE FOUR FIVE SEVEN
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atc
LEVEL THREE ZERO ZERO
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pilot
CLEARED TO LAND RUNWAY THREE ONE CSA
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atc
LUFTHANSA FOUR WHISKEY YANKEE CONTACT PRAHA ONE THREE FIVE DECIMAL ONE THREE FIVE GOOD BYE
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pilot
PRAHA RADAR GOOD DAY AUSTRIAN THREE ZERO ONE HOTEL LEVEL TWO FIVE FIVE CLIMBING LEVEL TWO EIGHT ZERO
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pilot
NINER KILO YANKEE DESCENDING FLIGHT LEVEL
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pilot
CLIMBING LEVEL THREE FOUR ZERO CONTINUE PRESENT HEADING LUFTHANSA SIX ONE EIGHT
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atc
AFFIRMATIVE BREAK DONAVIA THREE ZERO FIVE REPORT ESTABLISHED
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pilot
RUNWAY ONE THREE CLEARED TO LAND CSA ONE NINER SIX THREE
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pilot
SEVEN FIVE EIGHT ONE TWO FIVE NINER SIX FIVE
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atc
CSA NINER SIX SIX VOZ DIRECT CLIMB FLIGHT LEVEL ONE FOUR ZERO
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pilot
LINE UP AND WAIT
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atc
QUALITY NINER ONE ROMEO TURN RIGHT HEADING TWO SEVEN ZERO RADAR DEPARTURE
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pilot
SIX TWO THREE
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atc
LOT THREE NINER FOUR CLIMB TO FLIGHT LEVEL THREE THREE ZERO
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pilot
PRAHA RADAR GOOD EVENING SINGAPORE THREE TWO FIVE
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atc
LUFTHANSA SEVEN FIVE SEVEN CALL MUNICH ONE THREE TWO ONE FIVE FIVE BYE BYE
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pilot
LUFTHANSA EIGHT NOVEMBER ECHO RUNWAY THREE ONE CLEARED FOR
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pilot
SINGAPORE TWO FIVE REQUEST
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pilot
CORRECTION EL AL TWO FIVE ZERO
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pilot
CONTINUE CLIMB TO FLIGHT LEVEL THREE FOUR ZERO OSCAR SIERRA JULIETT
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atc
LUFTHANSA TWO HOTEL TANGO
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atc
AUSTRIAN SEVEN ZERO FOUR LINE UP RUNWAY THREE ONE
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pilot
LUFTHANSA ONE FOUR NINER THREE DESCENDING FLIGHT LEVEL THREE HUNDRED
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atc
DELTA INDIA KILO ALPHA HOTEL STANDBY
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atc
SPEEDBIRD TWO SEVEN SEVEN HELLO PRAHA RADAR CONTACT PROCEED DIRECT ROMIS
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pilot
ONE ONE EIGHT THREE SEVEN FIVE SWEDESTAR ZERO
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pilot
GERMANWINGS ONE FOUR ONE ONE THREE TWO ONE FIVE FIVE
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pilot
CLIMB FLIGHT LEVEL THREE FOUR ZERO LUFTHANSA ONE UNIFORM XRAY AND THIS WILL BE FINAL
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atc
CSA SEVEN TWO SEVEN TURN LEFT HEADING ZERO FOUR ZERO
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pilot
PRAHA HELLO SPEEDBIRD TWO SEVEN SEVEN FLIGHT LEVEL THREE THREE ZERO BALUS
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pilot
DESCENDING FLIGHT LEVEL ONE SEVEN ZERO CSA NINER TWO ONE
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pilot
THREE FIVE ZERO
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pilot
RUZYNE TOWER HELLO EASY NINER CHARLIE LIMA
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atc
EL AL FIVE TWO TWO CONTACT BRATISLAVA ONE THREE FOUR DECIMAL FOUR SEVEN FIVE
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pilot
AND LUFTHANSA TWO FIVE TWO EIGHT REQUEST FLIGHT LEVEL
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pilot
CLIMBING THREE THREE ZERO AUSTRIAN SEVEN ONE
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atc
GOOD EVENING AIR MALTA FIVE THREE NINER RADAR RADAR CONTACT CLIMB FLIGHT LEVEL SIX ZERO AND PREPARE FOR RIGHT TURN
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atc
CSA EIGHT ZERO THREE WHEN READY DESCEND FLIGHT LEVEL TWO NINER ZERO
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pilot
SIX THREE ALPHA
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atc
FEDEX THREE FOUR PROCEED TO LIMA DELTA ZULU
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atc
AIRFRANS ONE THREE EIGHT TWO REDUCE SPEED ONE EIGHT ZERO KNOTS
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atc
HELLO SPEEDBIRD EIGHT FIVE THREE PRAHA RADAR RADAR CONTACT CLIMB FLIGHT LEVEL ONE SIX ZERO NO SPEED RESTRICTIONS
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pilot
CHEB DIRECT LOT THREE TWO NINER
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pilot
ONE THREE THREE THREE NINER ZERO THREE ONE TWO CHARLIE BYE BYE
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atc
ROGER YANGTZE RIVER SEVEN FOUR SIX ZERO
End of preview. Expand in Data Studio

ATC-Pilot Speaker Role Classification Dataset

This dataset is designed for binary text classification in air traffic communication, distinguishing between utterances made by pilots and those made by air traffic controllers (ATC).

Dataset Origin

The data was derived from the UWB ATC Corpus, a publicly available dataset of air traffic control communications provided by the University of West Bohemia. This corpus consists of approximately 20 hours of manually transcribed recordings from Czech airspace, capturing a wide range of heavily accented English and common linguistic artifacts found in international ATC exchanges.

The original transcriptions were cleaned, normalized, and labeled to support the speaker role classification task.

Preprocessing

The dataset underwent extensive preprocessing to adapt the raw UWB transcripts for classification. Key steps included:

  • Uppercasing all transcripts for uniformity
  • Converting digits to words (e.g., 3 5 0 → THREE FIVE ZERO)
  • Expanding letters to phonetic alphabet equivalents (e.g., N → NOVEMBER)
  • Removing non-English, unintelligible, or corrupted segments
  • Normalizing diacritics and fixing broken Unicode characters
  • Manual review of ambiguous speaker segments to ensure correct labeling

Structure

Each example contains:

  • id: A unique sample identifier
  • text: The processed communication utterance (uppercase, normalized)
  • class: The speaker role label ("pilot" or "atc")

The dataset is fully balanced, with an equal number of pilot and atc examples in the train, validation, and test splits.

Use Cases

This dataset is intended for:

  • Training and evaluating speaker role classifiers in air traffic communications
  • Text-based analysis in low-resource, safety-critical domains
  • Preprocessing or filtering stages in multi-modal ATC systems

Reproducibility

The full preprocessing and construction pipeline is available in the associated GitHub repository. It includes tools for raw transcript processing, dataset construction, and evaluation, allowing others to reproduce or extend the dataset as needed.

Conclusion

This dataset supports robust and accurate classification of speaker roles in air traffic communication. It enables text-only modeling of a task that typically relies on acoustic input, and provides a realistic benchmark for structured aviation dialogue understanding. The inclusion of accented English, phonetic variability, and transcription inconsistencies makes it especially valuable for research in real-world ATC scenarios.

References

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