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Cities emerged as the epicenters of the COVID-19 pandemic: . And poor urban neighborhoods were hit especially hard.

Researchers frequently attributed the vulnerability of cities to . The vulnerability of cities during the COVID-19 pandemic has highlighted the need to create sustainable cities that promote health.

Less density, more diversity

As sociologists interested in urban settings, we examined how the . Our findings suggest a few things cities should keep in mind as they rebuild following the pandemic.

First, we should create more walkable neighborhoods. COVID-19 spread at a much slower pace in highly walkable neighborhoods. Residents in these neighborhoods on wider and better maintained sidewalks, which may reduce their exposure to the COVID-19 virus.

Second, we should reduce the number of overcrowded households. Soaring real estate prices have forced many socio-economically disadvantaged families into overcrowded housing. Space constraints in these housing units may make it more difficult for residents to practice adequate physical distancing. . . Increasing the supply of affordable housing may hold the key to reducing the urban poor's vulnerability to infectious diseases.

Third, we should increase the number of mixed-income housing units and better integrate our neighborhoods. COVID-19 spread much faster in lower-income neighborhoods. Housing affordability may have pushed out .

Displacement and higher density due to limited housing affordability may have increased the concentration of residents who were exposed to the COVID-19 virus. Residents of low-income neighborhoods are more likely than their peers in affluent neighborhoods to live in close proximity to someone with a COVID-19 infection.

Tailored responses

Residents of low-income neighborhoods rely more on neighborhood amenities than their peers in affluent neighborhoods because they have fewer personal resources at their disposal. And even when communities have the same amenities, those in lower-income neighborhoods are more likely to be poorly maintained. For example, lower-income neighborhoods may .

They also have fewer health-promoting amenities, such as grocery stores with fresh produce or . Therefore, a neighborhood's physical environment contributes to the spread of COVID-19 differently in lower and higher income neighborhoods.

Our study reveals that . In more affluent neighborhoods, even high-density apartment buildings come with amenities and protections—like better ventilation systems and additional staff to properly sanitize common areas—that similarly dense buildings in lower-income neighborhoods lack.

Similarly, green space mitigates the spread of COVID-19 in lower-income, but not higher-income, neighborhoods. Housing units in low-income neighborhoods are likely smaller, overcrowded, less well-maintained and have poorer ventilation. Residents of low-income neighborhoods may thus face greater difficulty adhering to stay-at-home policies. Large green spaces in such neighborhoods may .

Furthermore, neighborhood walkability helps mitigate the spread of COVID-19 more in lower-income neighborhoods than in higher-income neighborhoods. This pattern likely emerges because residents of . They are more likely to rely on public transportation for errands that cannot be completed on foot. For residents of low-income neighborhoods with poor walkability, .

After the pandemic

The COVID-19 pandemic has highlighted the need for us to build sustainable cities that promote health and reduce the vulnerability to infectious diseases among their residents. Future urban planning efforts should not adopt a one-size-fits-all approach. Instead, they should tailor the rebuilding process to meet the diverse needs of residents of lower and higher income neighborhoods.

Specifically, rebuilding efforts should prioritize low-income neighborhoods and remedy their high population density, construct more green spaces and improve their walkability.

This article is republished from under a Creative Commons license. Read the .