Urban green spaces play an important role in improving environmental quality and enhancing the quality of life in cities. However, in high-density urban areas such as the inner city of Hanoi, the distribution of green spaces and residents’ accessibility to these spaces remain uneven. This study applies Geographic Information Systems (GIS) to evaluate the accessibility of urban green spaces in the historical inner-city area of Hanoi. Spatial datasets including parks, public gardens, water bodies, residential distribution, and administrative boundaries were integrated into a GIS database. Spatial analysis tools in ArcGIS were used to calculate residents’ accessibility to green spaces within a 500 m distance based on current planning standards. The results show that approximately 70% of residents in the study area can access urban green spaces within the required distance, while about 30% remain outside the service coverage, mainly in densely built areas with limited public open spaces. The study demonstrates that GIS-based spatial analysis is an effective tool for assessing and monitoring the implementation of urban planning standards. The findings provide a scientific basis for improving the planning and management of urban green spaces toward more sustainable urban development in Hanoi.
Le et al. (Mon,) studied this question.