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Review of Information Engineering and Applications

March 2018, Volume 5, 1, pp 12-30

Forecasting Air Passengers of Changi Airport Based on Seasonal Decomposition and an LSSVM Model

G.X.M. Vu


Z.W. Zhong

G.X.M. Vu 1 Z.W. Zhong 1 ,

  1. School of Mechanical and Aerospace Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Republic of Singapore 1

on Google Scholar
on PubMed

Pages: 12-30

DOI: 10.18488/journal.79.2018.51.12.30

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Article History:

Received: 11 June, 2018
Revised: 15 August, 2018
Accepted: 20 September, 2018
Published: 18 October, 2018


This work aimed to determine a suitable method to provide air traffic passenger forecasts of Changi airport. A linear forecasting technique in the form of a seasonal autoregressive integrated moving average (SARIMA) model and a nonlinear technique known as the least squares support vector machine (LSSVM) were compared. A hybrid X-13 LSSVM approach was also compared. A fourth approach was proposed to leverage the outputs of the hybrid X-13 LSSVM method to conduct forecasts for longer forecasting horizons. Results showed that SARIMA, direct LSSVM and X-13 LSSVM methods were able to provide accurate 1-month-ahead forecasts. However, SARIMA and direct LSSVM methods both suffered from forecasting inaccuracy, as the forecasting horizon increased. The X-13 LSSVM outperformed both SARIMA and direct LSSVM methods, in terms of small magnitude errors and forecasting directional changes across the forecasting horizons. The proposed fourth approach was able to provide 24-months-ahead forecasts and was easy to implement.
Contribution/ Originality
This study documents a suitable method to forecast air traffic passengers. A linear technique, a nonlinear technique and a hybrid X-13 LSSVM approach were compared. A fourth approach was proposed for longer forecasting horizons. Results showed that the proposed approach could provide 24-months-ahead forecasts and was easy to implement.


Forecasting, Air traffic, Passengers, Forecasting accuracy, Airport, Seasonal decomposition.



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This study received no specific financial support.

Competing Interests:

The authors declare that they have no competing interests.


Both authors contributed equally to the conception and design of the study.

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