Store Networks
A comparison of the store networks of two large discount textile chains. Due to the high level of franchise concentration in Germany, such maps are also well suited as a rough indicator for estimating population density.
Voronoi polygons clearly show the higher store density of the textile chain with three letters compared to its competitor. Expressed in numbers, each of the 2599 stores of textile chain 1 (gray) covers an area of 207 square kilometers on average, while textile chain 2 (yellow) with 1062 stores covers an impressive 407 square kilometers.
A little exercise with Python (store data extraction) and Quantum GIS on a rainy Sunday afternoon.