The 'busy day' data for the base year is 'actual' and should come from the airport control tower (ATC) log. It should cover each aircraft movement during the 'busy' day with indication of the following attributes:
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Airline Name.
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Flight Number.
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Aircraft Type.
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Aircraft Registration.
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Seating Capacity.
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Origin Of Flight.
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Arrival Time.
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Terminal Used.
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Passengers Disembarked.
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Direct Transit Passengers (If Applicable).
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Departure Time.
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Destination Of Flight.
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Embarking Passengers.
The busy day should be more than just a single witnessed statistical hour or a day within an operational calendar. The busy day should be representative of a frequently occurring 'model' busy period, representative of a realistic day within a weekly schedule.