OpenStreetMap

Animated dataviz of OpenStreetMap edits per year

Posted by mcld on 17 January 2013 in English (English)

Another iteration of my visualisation of OpenStreetMap edits - here's an animation showing, for each year 2005-2012, the density of edits according to their geographic location:

Animation showing the density of OSM edits in 2005-2012, divided by population density

Animation showing the density of OSM edits in 2005-2012, divided by population density

The upper plot is the raw edit density. The lower one (which I think is more illuminating) is the edit density per unit population, as described in a previous post (with source code).

So what can you see? Well, both of them show the humble London-centred beginnings in 2005, followed by solid growth until the whole world is filled out. I think the lower plot more clearly shows when the "filling out" happens. 2007 is the year OpenStreetMap "goes global" but 2009 is the year it levels out. Before 2009, the edits-per-population are very variable, but from 2009 onwards the picture is much whiter and there's not much annual change in the colouring. This means the distribution of edits much more closely fits the population distribution, though (as noted last time) central Africa and around China are relatively underrepresented.

(This is cross-posted from my blog)

Comment from tmcw on 17 January 2013 at 21:04

Very cool, this does a great job of highlighting where we need to focus outreach. Thanks for doing this.

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Comment from !i! on 22 January 2013 at 20:15

I like :) Would see this in Youtube and HD!

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