Journal
JOURNAL OF AIR TRANSPORT MANAGEMENT
Volume 96, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.jairtraman.2021.102126
Keywords
COVID-19; Air travel; Daily travel; Neural network; Simulation
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The COVID-19 pandemic has significantly impacted the airline industry in the United States, leading to a sharp decline in air travel. The dynamic changes and uncertainties in the pandemic trend has made future air travel prediction challenging. The study reveals that the weekly economic index is the most crucial predictor for air travel, and even under the best-case scenario, it will take several years for air travel to return to pre-pandemic levels.
The COVID-19 pandemic has had a substantial impact on the airline industry. Air travel in the United States declined in 2020 with significantly lower domestic and international flights. The dynamic change and uncertainty in the trend of COVID-19 have made it difficult to predict future air travel. This paper aims at developing and testing neural network models that predict domestic and international air travel in the medium and long term based on residents' daily trips by distance, economic condition, COVID-19 severity, and travel restrictions. Data in the United States from various sources were used to train and validate the neural network models, and Monte Carlo simulations were constructed to predict air travel under uncertainty of the pandemic and economic growth. The results show that weekly economic index (WEI) is the most important predictor for air travel. Additionally, daily trips by distance play a more important role in the prediction of domestic air travel than the international one, while travel restrictions seem to have an impact on both. Sensitivity analysis results for four different scenarios indicate that air travel in the future is more sensitive to the change in WEI than the changes in COVID-19 variables. Additionally, even in the best-case scenario, when the pandemic is over and the economy is back to normal, it still takes several years for air travel to return to normal, as before the pandemic. The findings have significant contributions to the literature in COVID-19's impact on air transportation and air travel prediction.
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