Authors

Produced by Sierra Leone's Directorate of Science, Technology and Innovation (DSTI); Flowminder Foundation / GRID3; Africell Sierra Leone; MIT GovLab; MIT Civic Data Design Lab, December 2020.

Study period

This report presents a mobility analysis from 03 April to 10 November 2020, based on baseline data from 02 to 28 February 2020.

Reading the graphs

Most results are expressed as percentage changes from the baseline period preceding the announcement of the first lockdown (3 April), i.e. compared to normal conditions.

Data sources

Africell provided Call Detail Records (CDR) of their subscribers to DSTI , MIT aggregated it following a methodology proposed by Flowminder (see here and here). Flowminder then derived the mobility indicators presented in this report (see here for the method).

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