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Preliminary Estimates

Monday, December 16, 2024

The Bureau of Transportation Statistics (BTS) developed a model that allows for the forecast of the preliminary estimates for enplanements. The model develops an analysis and obtains a sense of the appropriateness of simpler linear regression, correlations were calculated between the national TSA inspection checks and the full, domestic, and international T100 market data.

Passenger enplanement numbers are collected monthly and published 3-4 months after the month ends. Transportation Security Administration (TSA) checkpoint screening is closely linked to passenger enplanement. TSA data is available a day after the month has ended, making it a suitable proxy for predicting enplanement numbers.

The simple linear regression model, with seasonality, was tested for all three T100 market datasets. For each data set, seasonality was assessed from the residuals of the simple linear regression model. Using this method, it identifies a strong correlation between TSA screen data and passenger enplanements which, identified a regression model would be a suitable modeling methodology.

The result of the model provides preliminary estimates for passenger enplanements, with high predictability and confidence in the estimates for 3 to 12 months in advance.


 

Enplanements Regressed on TSA Checks 2019, 2022-2023

All_lin - A simple linear regression model is used to predict monthly total passenger enplanements based on monthly TSA inspection counts. Passenger enplanement values are depicted on the y-axis and TSA checks are depicted on the x-axis. Each point in the scatter plot represents one observation corresponding to a pair of enplanement and TSA check numbers for a given month. The regression model is visualized through the line on the graph. The model is fitted on 2019, 2022, 2023 data and excludes the pandemic years of 2020-2021.

 

Domestic Enplanements Regressed on TSA Checks 2019, 2022-2023

Dom_lin - A simple linear regression model is used to predict monthly domestic passenger enplanements based on monthly TSA inspection counts. Passenger enplanement values are depicted on the y-axis and TSA checks are depicted on the x-axis. Each point in the scatter plot represents one observation corresponding to a pair of enplanement and TSA check numbers for a given month. The regression model is visualized through the line on the graph. The model is fitted on 2019, 2022, 2023 data and excludes the pandemic years of 2020-2021.

 

International Enplanements Regressed on TSA Checks 2019, 2022-2023

Int_lin - A simple linear regression model is used to predict monthly international passenger enplanements based on monthly TSA inspection counts. Passenger enplanement values are depicted on the y-axis and TSA checks are depicted on the x-axis. Each point in the scatter plot represents one observation corresponding to a pair of enplanement and TSA check numbers for a given month. The regression model is visualized through the line on the graph. The model is fitted on 2019, 2022, 2023 data and excludes the pandemic years of 2020-2021.

 

 

Enplanements Regressed on TSA Checks 2019, 2022-2023 with Season

A linear regression model with seasonal adjustments is used to predict monthly total passenger enplanements based on monthly TSA inspection counts. Passenger enplanement values are depicted on the y-axis and TSA checks are depicted on the x-axis. Each point in the scatter plot represents one observation corresponding to a pair of enplanement and TSA check numbers for a given month. The regression model is visualized through the lines on the graph; each line corresponds to the model for a particular season. The months covered in each season are stated in the legend. The model is fitted on 2019, 2022, 2023 data and excludes the pandemic years of 2020-2021.

 

Domestic Enplanements Regressed on TSA Checks 2019, 2022-2023 with Season

A linear regression model with seasonal adjustments is used to predict monthly domestic passenger enplanements based on monthly TSA inspection counts. Passenger enplanement values are depicted on the y-axis and TSA checks are depicted on the x-axis. Each point in the scatter plot represents one observation corresponding to a pair of enplanement and TSA check numbers for a given month. The regression model is visualized through the lines on the graph; each line corresponds to the model for a particular season. The months covered in each season are stated in the legend. The model is fitted on 2019, 2022, 2023 data and excludes the pandemic years of 2020-2021.

 

International Enplanements Regressed on TSA Checks 2019, 2022-2023 with Season

A linear regression model with seasonal adjustments is used to predict monthly international passenger enplanements based on monthly TSA inspection counts. Passenger enplanement values are depicted on the y-axis and TSA checks are depicted on the x-axis. Each point in the scatter plot represents one observation corresponding to a pair of enplanement and TSA check numbers for a given month. The regression model is visualized through the lines on the graph; each line corresponds to the model for a particular season. The months covered in each season are stated in the legend. The model is fitted on 2019, 2022, 2023 data and excludes the pandemic years of 2020-2021.

 

 

Enplanements Regressed on TSA Checks 2019-2023

A quadratic linear regression model is used to predict monthly total passenger enplanements based on monthly TSA inspection counts. Passenger enplanement values are depicted on the y-axis and TSA checks are depicted on the x-axis. Each point in the scatter plot represents one observation corresponding to a pair of enplanement and TSA check numbers for a given month. The regression model is visualized through the line on the graph. The model is fitted on 2019-2023 data.

 

Domestic Enplanements Regressed on TSA Checks 2019-2023

A quadratic linear regression model is used to predict monthly domestic passenger enplanements based on monthly TSA inspection counts. Passenger enplanement values are depicted on the y-axis and TSA checks are depicted on the x-axis. Each point in the scatter plot represents one observation corresponding to a pair of enplanement and TSA check numbers for a given month. The regression model is visualized through the line on the graph. The model is fitted on 2019-2023 data.

 

International Enplanements Regressed on TSA Checks 2019-2023

A quadratic linear regression model is used to predict monthly international passenger enplanements based on monthly TSA inspection counts. Passenger enplanement values are depicted on the y-axis and TSA checks are depicted on the x-axis. Each point in the scatter plot represents one observation corresponding to a pair of enplanement and TSA check numbers for a given month. The regression model is visualized through the line on the graph. The model is fitted on 2019-2023 data.