Openstreetmap Worldwide Coverage

Martin Raifer has released a beautiful map of OpenStreetMap Node Density. The map provides a full general overview of OpenStreetMap's global coverage.

Each pixel on the map shows the set out of nodes at that location. When comparison areas on the map yous withdraw to demeanour out a classify of population normalization calculation inwards your head. For illustration key Commonwealth of Australia appears darker on the map than merely about of the Australian coastline. This is to a greater extent than than probable due to the fact that urban conurbations are mainly on the coast together with thence at that spot volition endure to a greater extent than map features than inwards the less densely populated areas inwards the pump of Australia. You too withdraw to squall upward that the map uses a Web Mercator projection together with thence this makes it to a greater extent than hard to compare locations at dissimilar latitudes.


In Europe the Netherlands seems to convey the highest node density. Is this because the Netherlands has a huge set out of OpenStreetMap contributors or merely a reflection of the relative urban density of the country? In the USA California shines out, specially key San Francisco together with Bakersfield. My approximate is that Bakersfield inwards detail must convey a pretty dedicated squad of OpenStreetMap contributors.