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The centroid sheet lists the centroid for each country in the world. With OSM the closest town has been identified. In order to be able to calculate distances by road through OpenStreetMap, we need identify the closest town to this centroid. (Be careful with the place name recognition in OSM, sometimes the wrong location is given.)
 
The centroid sheet lists the centroid for each country in the world. With OSM the closest town has been identified. In order to be able to calculate distances by road through OpenStreetMap, we need identify the closest town to this centroid. (Be careful with the place name recognition in OSM, sometimes the wrong location is given.)
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The centroids were taken from [http://worldmap.harvard.edu/data/geonode:country_centroids_az8 here]. The countries in this list have been used as a starting point. Some centroids have been recalculated based on largest cities and population sizes.
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The centroid cities were calculated based on population and road distances (see [[Centroid|here]]) or were taken from [http://worldmap.harvard.edu/data/geonode:country_centroids_az8 here]. The countries in this list have been used as a starting point. Some centroids have been recalculated based on largest cities and population sizes.
    
The worksheet contains the following rows and columns.
 
The worksheet contains the following rows and columns.
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