Shortest-Paths Preserving Metro Maps
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A metro map, or subway map, is a schematic representation of a metro system of a city. The main goal of a metro map is to provide a traveler with information on which lines to take to get from station A to station B, and at which stations he needs to switch lines. It is often not beneficial to use the geographical embedding of the system, but rather a representation where the relevant information is presented as clearly as possible. There are several algorithms that aim to generate such maps .