This bachelor thesis focuses on the spatial accessibility of public urban greenery, which plays an increasingly important role in sustainable urban development. The aim of the thesis was to implement a fully automated tool for assessing the walking accessibility of green spaces for residents, based on the official methodology of the European Commission titled A walk to the park?.

The accessibility analysis was performed using a network-based approach in ArcGIS Pro. A custom Python toolbox named Accessibility_of_urban_greenery was created, consisting of six sequential scripts that allow users to prepare input data, calculate pedestrian service areas, identify reachable residents and summarize results per district or a hexagonal grid.

The methodology was tested on three major Czech cities – Olomouc, Brno, and Ostrava. The results showed significant spatial disparities in access to green spaces, both between and within cities. The share of population with reachable green areas (within a 400-meter walking distance) was highest in Olomouc and lowest in Ostrava.

The final output is a transferable, open and flexible tool for analyzing accessibility of public greenery, fully compatible with international indicators such as the UN Sustainable Development Goal 11.7.1. It can serve as a basis for urban planning, monitoring environmental equity, or developing new strategies for green infrastructure.