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Understanding the interplay between urban segregation and accessibility to services with network analysis
Mirko Lai1, Anna Sapienza1, Salvatore Vilella1
1Dipartimento di Scienze e Innovazione Tecnologica, Università del Piemonte Orientale, Alessandria, Italy.
Plos One
|April 1, 2026
Summary
The 15-minute city model may worsen spatial segregation. While aiming for convenience, hyper-proximity can inadvertently increase social exclusion, particularly in lower-income neighborhoods, by affecting service access and transport links.
Area of Science:
- Urban Planning and Network Science
- Spatial Analysis and Social Geography
Background:
- The 15-minute city concept promotes hyper-proximity for enhanced livability and sustainability.
- Potential negative impacts on social inclusion and spatial segregation are underexplored.
Purpose of the Study:
- To develop and apply a network-based framework to analyze the effects of hyper-proximity models on spatial segregation.
- To investigate how service accessibility and transport connectivity influence social inequalities.
Main Methods:
- Modeling cities as complex spatial networks.
- Quantifying service accessibility via Points of Interest (PoIs) distribution.
- Using closeness centrality to measure urban transport connectivity at various scales.
Main Results:
- Areas with better service access generally show higher connectivity, but this relationship is uneven.
- Lower-income neighborhoods often exhibit both reduced accessibility and connectivity.
- Some higher-income areas show low accessibility and connectivity, indicating potential voluntary isolation.
Conclusions:
- Hyper-proximity models like the 15-minute city do not inherently guarantee inclusiveness.
- These urban planning strategies may mask or even exacerbate existing socio-economic inequalities.
- Further research is needed to ensure equitable outcomes in urban development.
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