Infrastructure deficits and informal settlements in sub-Saharan Africa

Luís M. A. Bettencourt () and Nicholas Marchio
Additional contact information
Luís M. A. Bettencourt: University of Chicago
Nicholas Marchio: University of Chicago

Nature, 2025, vol. 645, issue 8080, 399-406

Abstract: Abstract Sustainable development is an imperative worldwide1–3 but metrics and data on poverty and quality of life have remained too coarse and abstract to characterize challenges adequately and guide practical progress4,5. Nowhere is this challenge greater than in Africa4–6, where we still know little about the spatial details of development3,7–9. Here we leverage a comprehensive, high-precision dataset of building footprints to identify infrastructure deficits and infer informal settlements down to the street block level10–12 everywhere in sub-Saharan Africa. We identify a general pattern of informality with cities showing, on average, greater access to infrastructure and services than rural and peri-urban areas. We show that such patterns of informality are characterized by consistent statistical distributions reflecting uneven local development2,13,14. We also show that these physical measures of informality are systematically associated with many indicators of human deprivation, which form a single principal component co-varying predictably with specific changes in street access to buildings. These results demonstrate that the localization of sustainable development is possible down to the street level at a continental scale and provide a general distributed strategy for accelerating progress in infrastructure and service expansion that taps local innovations in systematic, equitable and context-appropriate ways7,11,12,15.

Date: 2025
References: Add references at CitEc
Citations:

Downloads: (external link)
https://www.nature.com/articles/s41586-025-09465-2 Abstract (text/html)
Access to the full text of the articles in this series is restricted.

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:nat:nature:v:645:y:2025:i:8080:d:10.1038_s41586-025-09465-2

Ordering information: This journal article can be ordered from
https://www.nature.com/

DOI: 10.1038/s41586-025-09465-2

Access Statistics for this article

Nature is currently edited by Magdalena Skipper

More articles in Nature from Nature
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().