215 posts
Moves towards reopening the country

Using anonymized cellphone data from SafeGraph, Reade Levinson and Chris Canipe for Reuters mapped the change in foot traffic for different types of businesses over time. Orange represents more movements since the first week of March. Blue means less. Yellow means about the same. We’re working towards all orange. Fingers crossed. Sidenote: Now isn’t really the time, but when it is, we’re gonna have to come back to this mobile...

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Mobile phone data shows decreased movement nationwide

Stuart A. Thompson and Yaryna Serkez for New York Times Opinion on decreasing movement, based on mobile phone data: The impact of social distancing and work-from-home measures has been captured using data on smartphone movements, an analysis of which was provided to the Times Opinion section by Descartes Labs, a geospatial analysis company. The data shows how states hit hard by the virus, like New York, California and Washington, have...

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Why People Move

The Current Population Survey tracks mobility and migration in the United States. Since 1999, its asked for the reasons people moved from one place to the other. Here are the estimates for the most recent time segment between 2017 and 2018. Notes You can download the historical data for the Current Population Survey here. I stumbled on the dataset via Tom MacWright. I made the chart in R. Relevant tutorial:...

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Mapping global accessibility to cities

From The Malaria Atlas Project, a global map of estimated accessibility to cities: In the present study, we quantify and validate global accessibility to high-density urban centres at a resolution of 1×1 kilometre for 2015, as measured by travel time. The last global mapping effort to measure accessibility was for the year 2000, a time that predates both substantial investment and expansion of transportation infrastructure and an extraordinary improvement in...

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