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A comment on The Huge, Unseen Operation Behind the Accuracy of Google Maps. Parent comment

Re:The Huge, Unseen Operation Behind the Accuracy of Google ... by rmc on Tuesday December 09, 2014 @08:31AM (#8722563)
What you're talking about is "imports". OSMers are wary of them. It's possible for someone to mess up existing data, to add bad data, damage the local community etc. Most of the map in the USA was imported in late 2007 ( http://wiki.openstreetmap.org/wiki/TIGER ). The map looks done, but the data quality is pretty poor.

Read more: http://wiki.openstreetmap.org/wiki/Import

People are happy if you manually enter them.

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