Data & methodology ▾
Service area: QGIS Network Analysis "Service area (from layer)", 400m walking distance along the OSM footpath network, run separately from every commercial POI, school, and health facility (pharmacies/clinics).
Coverage % is each district's own footprint covered by the buffered union of all per-point service areas for that category — comparable across districts regardless of size.
Note: the source workshop's "Health access" shapefile was found to be a mislabeled duplicate of the Education layer (identical geometry, school names). Health figures shown here are recomputed from the correct pharmacy/clinic point layer (Service_area/Health.shp, 201 facilities).
Postal district boundaries and GTFS stop/route data: Stadtwerke Münster. Commercial/education/health points: OpenStreetMap.
See the full case study for the bus-network frequency analysis and multimodal (bus/rail/bicycle) context.