The Impact of Air Travel on the COVID-19 Pandemic Spread in the United States

Lu Dai, Ivan Tereshchenko and Mark Hansen

Institute of Transportation Studies, Research Reports, Working Papers, Proceedings from Institute of Transportation Studies, UC Berkeley

Abstract: This paper develops models to quantify the dynamics of the impact of domestic air travel on the spread of the COVID-19 pandemic in the United States, using a wide range of datasets covering the period from March to December 2020 – when international travel was restricted and became a minor source of new COVID-19 cases across country borders. With the help of flight operation data, we first develop a novel approach to estimate the county-level daily air passenger traffic, which combines passenger load factor estimates and information about the air traffic distribution. Cross-sectional models using aggregated county-level variables are estimated. While this study focuses on air travel variables, we also control for potential spatial autocorrelation and other relevant covariates, including vehicle miles traveled (VMT), road network connectivity, demographic characteristics, and climate. The model results indicate that air travel has a strong and positive impact on the initial pandemic growth rate for both case-based and fatality-based aggregate models, but this impact attenuated after the first few months of the pandemic.

Keywords: Engineering; Medicine and Health Sciences; Social and Behavioral Sciences; Pandemic spread; air passenger traffic; cross-sectional model; spatial autocorrelation; network effect (search for similar items in EconPapers)
Date: 2022-10-01
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