Beyond Quantities: Machine Learning-based Characterization of Inequality in Infrastructure Quality Provision in Cities

• URL: http://arxiv.org/abs/2403.12074v2
• Date: Fri, 22 Mar 2024 04:35:16 GMT
• Title: Beyond Quantities: Machine Learning-based Characterization of Inequality in Infrastructure Quality Provision in Cities
• Authors: Bo Li, Ali Mostafavi,
• Abstract summary: We propose a machine learning-based approach in which infrastructure features that shape environmental hazard exposure are identified. We use the weights obtained by the model to calculate an infrastructure quality provision for spatial areas of cities. The results show that areas in which low-income populations reside have lower infrastructure quality provision.
• Score: 6.883914746584372
• License: http://creativecommons.org/licenses/by-nc-nd/4.0/
• Abstract: The objective of this study is to characterize inequality in infrastructure quality across urban areas. While a growing of body of literature has recognized the importance of characterizing infrastructure inequality in cities and provided quantified metrics to inform urban development plans, the majority of the existing approaches focus primarily on measuring the quantity of infrastructure, assuming that more infrastructure is better. Also, the existing research focuses primarily on index-based approaches in which the status of infrastructure provision in urban areas is determined based on assumed subjective weights. The focus on infrastructure quantity and use of indices obtained from subjective weights has hindered the ability to properly examine infrastructure inequality as it pertains to urban inequality and environmental justice considerations. Recognizing this gap, we propose a machine learning-based approach in which infrastructure features that shape environmental hazard exposure are identified and we use the weights obtained by the model to calculate an infrastructure quality provision for spatial areas of cities and accordingly, quantify the extent of inequality in infrastructure quality. The implementation of the model in five metropolitan areas in the U.S. demonstrates the capability of the proposed approach in characterizing inequality in infrastructure quality and capturing city-specific differences in the weights of infrastructure features. The results also show that areas in which low-income populations reside have lower infrastructure quality provision, suggesting the lower infrastructure quality provision as a determinant of urban disparities. Accordingly, the proposed approach can be effectively used to inform integrated urban design strategies to promote infrastructure equity and environmental justice based on data-driven and machine intelligence-based insights.

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