The 15-Minute City Quantified Using Mobility Data

Timur Abbiasov, Cate Heine, Edward Glaeser, Carlo Ratti, Sadegh Sabouri, Arianna Salazar Miranda and Paolo Santi

No 30752, NBER Working Papers from National Bureau of Economic Research, Inc

Abstract: Americans travel 7 to 9 miles on average for shopping and recreational activities, which is far longer than the 15-minute (walking) city advocated by ecologically-oriented urban planners. This paper provides a comprehensive analysis of local trip behavior in US cities using GPS data on individual trips from 40 million mobile devices. We define local usage as the share of trips made within 15-minutes walking distance from home, and find that the median US city resident makes only 12% of their daily trips within such a short distance. We find that differences in access to local services can explain eighty percent of the variation in 15-minute usage across metropolitan areas and 74 percent of the variation in usage within metropolitan areas. Differences in historic zoning permissiveness within New York suggest a causal link between access and usage, and that less restrictive zoning rules, such as permitting more mixed-use development, would lead to shorter travel times. Finally, we document a strong correlation between local usage and experienced segregation for poorer, but not richer, urbanites, which suggests that 15-minute cities may also exacerbate the social isolation of marginalized communities.

JEL-codes: H0 J0 R0 (search for similar items in EconPapers)
Date: 2022-12
New Economics Papers: this item is included in nep-tre and nep-ure
Note: LS
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Citations: View citations in EconPapers (1)

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