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Urban Density and Equity of Access to Social Services in Australian Urban Areas

Kerry A. Nice, Mark Stevenson

TL;DR

This study addresses inequitable access to essential services in Australian urban areas by constructing a Social Service Access Index (SSI) based on 800-m walking catchments around SA1 centroids for primary health care, early childhood services, and public transport, then aggregating to SA2/SA4 regions. It integrates multiple data sources (health providers, childcare facilities, GTFS transport, and ABS demographics) to map spatial patterns of access across six capital cities, comparing them to compact/15-minute city ideals. The results show Melbourne and Sydney have limited compact-city characteristics confined to the core, while peri-urban zones exhibit pronounced inequities, and no city achieves comprehensive 15-minute accessibility; walking times to services are estimated at about 17 minutes in Melbourne and 19 minutes in Sydney. These findings highlight the need for urban planning strategies that densify core areas and improve service provisioning to reduce geographic and socioeconomic disparities in access to essential services.

Abstract

To measure access to social services (primary health care, early childhood care/education, and public transport), we create a social service access index (SSI) for Australian capital cities. We show that only two, Melbourne and Sydney, have some limited characteristics of a compact or 15-minute city, but only in city centres and inner cities where population densities are highest and have less low density housing types. In the outer suburban and peri-urban areas as well as across all of the remaining cities, proximity to social services is poor and residents suffer the consequences of spatial inequity.

Urban Density and Equity of Access to Social Services in Australian Urban Areas

TL;DR

This study addresses inequitable access to essential services in Australian urban areas by constructing a Social Service Access Index (SSI) based on 800-m walking catchments around SA1 centroids for primary health care, early childhood services, and public transport, then aggregating to SA2/SA4 regions. It integrates multiple data sources (health providers, childcare facilities, GTFS transport, and ABS demographics) to map spatial patterns of access across six capital cities, comparing them to compact/15-minute city ideals. The results show Melbourne and Sydney have limited compact-city characteristics confined to the core, while peri-urban zones exhibit pronounced inequities, and no city achieves comprehensive 15-minute accessibility; walking times to services are estimated at about 17 minutes in Melbourne and 19 minutes in Sydney. These findings highlight the need for urban planning strategies that densify core areas and improve service provisioning to reduce geographic and socioeconomic disparities in access to essential services.

Abstract

To measure access to social services (primary health care, early childhood care/education, and public transport), we create a social service access index (SSI) for Australian capital cities. We show that only two, Melbourne and Sydney, have some limited characteristics of a compact or 15-minute city, but only in city centres and inner cities where population densities are highest and have less low density housing types. In the outer suburban and peri-urban areas as well as across all of the remaining cities, proximity to social services is poor and residents suffer the consequences of spatial inequity.

Paper Structure

This paper contains 5 sections, 2 figures, 1 table.

Table of Contents

  1. Questions
  2. Methods
  3. Findings
  4. Acknowledgements
  5. Data Availability

Figures (2)

  • Figure 1: Calculated Social Service access Indexes (SSI) at SA2 level for a) Melbourne, b) Sydney, c) Brisbane, d) Perth, e) Darwin, and f) Adelaide. Higher values (lighter colors) indicate higher access.
  • Figure 2: Housing types, showing percentages of detached houses for each SA2 for a) Melbourne, b) Sydney, c) Brisbane, d) Perth, e) Darwin, and f) Adelaide.