International Journal of Geo-Information Article Population Mobility and the Transmission Risk of the COVID-19 in Wuhan, China Minghai Luo 1, Sixian Qin 1,*, Bo Tan 1, Mingming Cai 2,3, Yufeng Yue 4 and Qiangqiang Xiong 3 1 Wuhan Geomatics Institute, Wuhan 430079, China;
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[email protected] (B.T.) 2 Department of Urban Design and Planning, University of Washington Seattle, Seattle, WA 98195, USA;
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[email protected]; Tel.: +86-027-85748590 Abstract: At the beginning of 2020, a suddenly appearing novel coronavirus (COVID-19) rapidly spread around the world. The outbreak of the COVID-19 pandemic in China occurred during the Spring Festival when a large number of migrants traveled between cities, which greatly increased the infection risk of COVID-19 across the country. Financially supported by the Wuhan government, and based on cellphone signaling data from Unicom (a mobile phone carrier) and Baidu location-based data, this paper analyzed the effects that city dwellers, non-commuters, commuters, and people seeking medical services had on the transmission risk of COVID-19 in the early days of the pandemic Citation: Luo, M.; Qin, S.; Tan, B.; in Wuhan. The paper also evaluated the effects of the city lockdown policy on the spread of the Cai, M.; Yue, Y.; Xiong, Q. Population pandemic outside and inside Wuhan. The results show that although the daily business activities in Mobility and the Transmission Risk of the South China Seafood Wholesale Market and nearby commuters’ travel behaviors concentrated in the COVID-19 in Wuhan, China.