Fig. 4From: Quantifying spatial accessibility of general practitioners by applying a modified huff three-step floating catchment area (MH3SFCA) methodMaps featuring the position and an overview of Swabia (left) and the results of the application of the MH3SFCA method on the case study’s dataset (right). High values of the accessibility index are portrayed by (dark) red, average values by yellow and low values by (dark) blueBack to article page