Verfahren der GIS-Modellierung von Erreichbarkeiten für Schlaganfallversorgungszentren

Abstract

The methodologically-oriented paper presents a method for modeling supply areas and accessibility of stroke units in Germany with the use of geographic information systems (GIS). Based on OpenStreetMap-data vector routing based catchment areas of stroke units are analysed and blended with vector-based demographic data at a spatially disaggregated level. A modeling of temporal accessibility with rescue vehicles resulted in isochrone-maps. The intersection of these maps with high-resolution demographic attributed data offers different analysis options. These are demonstrated in a case study from Lower Franconia, which is to outline the potential of the method for the spatial planning of stroke units. An application of the method to other medical institutions or the intersection with other thematic attribute data is possible.