Spatial Inequality in Urban Park Provision: A GIS-Based Comparative Analysis of Sofia (Bulgaria) and Istanbul (Republic of Türkiye)

Rapid urbanization highlights the increasing importance of urban green infrastructure in shaping urban spatial organization, quality of life, and environmental sustainability. This study examines spatial inequalities in the provision of urban parks in Sofia (Bulgaria) and Istanbul (Republic of Türkiye) from a comparative urban geography perspective. The two cities are selected as contrasting urban contexts in Southeastern Europe, characterized by different patterns of urban development, population density, and spatial structures. A GIS-based analytical framework is applied at the district administrative level, integrating indicators such as the share of urban parks, park area per capita, Local Moran’s I, and the Gini coefficient. The results reveal distinct spatial patterns: Sofia demonstrates relatively higher levels of park provision but pronounced inequalities, characterized by the concentration of large park areas in a limited number of central districts. In contrast,Istanbul exhibits a more even spatial distribution but significantly lower levels of park area per capita, indicating an overall shortage of urban park space. The findings demonstrate that Sofia and Istanbul experience different forms of spatial disparities in park provision due to distinct trajectories of urban development.