To decelerate the spread of Covid-19, physical and virtual barriers, thresholds, and borders are being erected. The measures for separation range from calls for isolation via text message to blue metal sheet walls in urban residential areas, travel alerts and the closing of national borders. Which practices of spatial inclusion and exclusion can be observed, what types of barriers and borders are used? What materials, structures, or systems are they made of? How do these new borders influence the city and the experience of public space?

Blue Great Wall (central term, key notion from text/source)

Author of the contribution (student’s first and last name)

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Source: Cao Li, “A ‘Blue Great Wall‘ Divides a City as It Battles the Coronavirus“, in: The New York Times, March 4, 2020. 

Photograph by Yuyang Liu