Isochrone maps are pretty useful instruments that shows lines of equivalent drive time or travel time to a given location; they can be used in many statistical research, for example to find out which portion of a city can reach a given hospital within ten minutes drive. Unfortunately isochrones drawback is that each time you need a map centered on a different location you need to re-craft the isochrone. This lead to a general rarity of these maps on the web.
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Hallo, do you have a prove