PreprintCited by 370Human Mobility and Location-Based AnalysisCOVID-19 epidemiological studiesCOVID-19 Digital Contact Tracing

COVID-19 outbreak response: a first assessment of mobility changes in Italy following national lockdown

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Pepe, Emanuele, Bajardi, Paolo, Gauvin, Laetitia, Privitera, Filippo, Lake, Brennan, Cattuto, Ciro, Tizzoni, Michele·2020·medRxiv

Preprint — published as 10.1038/s41597-020-00575-2

Abstract

Italy is currently experiencing the largest COVID-19 outbreak in Europe so far, with more than 100,000 confirmed cases. Following the identification of the first infections, on February 21, 2020, national authorities have put in place an increasing number of restrictions aimed at containing the outbreak and delaying the epidemic peak. Since March 12, the whole country is under lockdown. Here we provide the first quantitative assessment of the impact of such measures on the mobility and the spatial proximity of Italians, through the analysis of a large-scale dataset on de-identified, geo-located smartphone users. With respect to pre-outbreak averages, we estimate a reduction of 50% of the total trips between Italian provinces, following the lockdown. In the same week, the average users’ radius of gyration has declined by about 50% and the average degree of the users’ proximity network has dropped by 47% at national level.

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Crossref · 10.1101/2020.03.22.20039933

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  • Analysis of the location data of Italian smartphone users estimated a reduction of 50% in the total trips between Italian provinces in the week after the announcement of lockdown on 12 March 2020.

    “Analysis of the location data of Italian smartphone users estimated a reduction of 50% in the total trips between Italian provinces in the week after the announcement of lockdown on 12 March 2020 (ref. 89 ).”

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Authors
Pepe, E., Bajardi, P., Gauvin, L., Privitera, F., Lake, B., Cattuto, C., & Tizzoni, M.
Affiliations
Institute for Scientific Interchange (IT)
Corresponding author
Tizzoni, Michele
Venue
medRxiv
Publisher
openRxiv
Published
2020-03-27
OpenAlex
W3013603216
Cited by
101
References
11
Citations by year
2025: 1 · 2023: 8 · 2022: 17 · 2021: 26 · 2020: 49
Type
posted content
Language
en
Open access
Licence
cc-by-nc-nd
Locations
medRxiv (acceptedVersion, cc-by-nc-nd)
Funders
  • Fondazione CRT
  • Intesa Sanpaolo Innovation Center
  • European Commission (HORIZON2020, 101003688)
Topics
  • Social Sciences › Transportation › Human Mobility and Location-Based Analysis
  • Physical Sciences › Mathematics › Modeling and Simulation › COVID-19 epidemiological studies
  • Physical Sciences › Computer Science › Information Systems › COVID-19 Digital Contact Tracing
Keywords
COVID-19 pandemic, lockdown, mobility change, smartphone location data, radius of gyration, Italy

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