Tom Kwok

Flights per day

plotphoto

The flight schedule data in the last 91 days for Hong Kong International Airport (IATA code HKG) is scraped from open data API on its official website. Plots are generated for the daily average frequency of destinations/origins, of airlines, of hour of day in schedule, and of status of flight.


Passenger flights #

In the last 91 days, there were on average 100 passenger flights per day scheduled for departure from HKG.

Daily average plots for passenger departure flights in the latest 91 days ending 2021-02-04


There were on average 94 passenger flights per day scheduled for arrival at HKG. The pie plots show very similar distributions.

Daily average plots for passenger arrival flights in the latest 91 days ending 2021-02-04


Cargo flights #

There were on average 109 cargo flights per day scheduled for departure from HKG. This number is notably higher than that for passenger flights.

Daily average plots for cargo departure flights in the latest 91 days ending 2021-02-04


In the same period, there were on average 106 cargo flights per day scheduled for arrival at HKG. The pie plots show similar and yet slightly different distributions.

Daily average plots for cargo arrival flights in the latest 91 days ending 2021-02-04


Note on cargo flights with first destination/origin taken #

The distribution of destinations for cargo departure flights would be significantly different if the first destination is taken for flights with multiple destinations. The most frequent destination is by far Anchorage, which is a major cargo hub in Alaska, United States.

Daily average plots for cargo departure flights with the first destination taken in the latest 91 days ending 2021-02-04

A similar plot can be obtained for distribution of origins for cargo arrival flights if the last origin is taken for flights with multiple origins.


Such types of plots presented above would be a good addition to the many statistical plots in Hong Kong International Airport Master Plan 2030 Technical Report (2011) although other metrics such as passenger volume and cargo volume may be more suitable for strategic analysis of airports rather than flights.

Further work #

It is suggested that other datasets be explored to perform similar data analysis on other airports.

It will be interesting to re-run my scripts for plots later and to observe the change in absolute number of flights, in cancelation rates, and in distribution of destinations/origins if any in the predicted post-Covid recovery in aviation.

It is also suggested that a predictor of flight status (departed or canceled) can be made based on features including day of week, hour of day, origin/destination, airline and flight number.


For some relevant illustration, some of my better photographs of aircrafts and aviation are included as follows.


A twin-engine aircraft passing by in the sky with green plants on the ground in Hong Kong (HKG) (2018) (f/8, 1/99, ISO 100)


An aerial view of Mount Fuji behind clouds through a window of an aircraft that departed from Tokyo (NRT) (2018) (f/6.625, 1/256, ISO 100)


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