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Characterizing network circuity among heterogeneous urban amenities.
Bibandhan Poudyal1, Gourab Ghoshal1, Alec Kirkley2,3,4
1Department of Physics and Astronomy, University of Rochester, Rochester, NY 14607, USA.
Journal of the Royal Society, Interface
|October 31, 2023
Summary
We developed a new measure, pairwise circuity (PC), to assess urban accessibility by considering street network efficiency. This method reveals how well cities connect amenities, offering insights into urban development and regional differences.
Area of Science:
- Urban Planning
- Spatial Analysis
- Network Science
Background:
- Urban amenities and street networks form a city's structure, impacting resident well-being.
- Current accessibility measures often overlook street network efficiency (circuity), relying heavily on urban density.
- Existing metrics can be inflexible and difficult for cross-sectional urban analysis.
Purpose of the Study:
- To develop a flexible and principled measure for urban circuity of accessibility.
- To quantify the excess travel distance between heterogeneous amenities using street networks.
- To analyze spatial and topological correlations among urban amenities.
Main Methods:
- Introduced the pairwise circuity (PC) measure.
- Quantified excess travel distance considering street network routing between amenity types.
- Assessed statistical associations with urban prosperity and accessibility indicators.
Main Results:
- The pairwise circuity (PC) effectively summarizes circuity and amenity correlations.
- PC showed significant associations with urban prosperity and accessibility indicators.
- PC values clearly separated cities by development level and geographical region.
Conclusions:
- The PC measure offers a flexible and principled approach to urban accessibility analysis.
- Circuity is a crucial, often neglected, component of urban accessibility.
- PC provides valuable insights into urban structure, development, and regional disparities.
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