A global map of all HOT contributions

Posted by dekstop on 26 January 2016 in English.

I’ve tweeted versions of this in the past (Feb 2015, May 2015), and used it in talks. Here’s an updated version with data up to 13th January 2016.

In total this covers around 120 million changes to the map, by almost 20,000 contributors across 1,000 projects. This required an estimated 165,000 hours of volunteer work! There’s a monthly breakdown of this activity in this Google spreadsheet: “2016-01 HOT activity timeline”.

Global map of all HOT contributions

I’m keen to do an animated version at some point! Also, could a cartography geek please recommend a suitable projection for this map? Atm it’s just the default WGS84, with apologies :)


Comment from TylerOSM on 26 January 2016 at 16:33

Hi Martin this is an amazing and welcome analysis! We’ll include this as part of a keynote at FOSDEM 2016 in Brussels.

Comment from dekstop on 26 January 2016 at 16:41

Woop woop! :)

Comment from dekstop on 26 January 2016 at 16:42

(Click on the image for a high-res version.)

Comment from az09 on 26 January 2016 at 16:50

Impressive! Not surprisingly, that the node/3000000000 is located exactly on the selected area

Comment from BushmanK on 27 January 2016 at 01:58

Robinson projection +proj=robin +lon_0=11 +x_0=0 +y_0=0 +ellps=WGS84 +datum=WGS84 +units=m +no_defs +towgs84=0,0,0 Set longitude of origin to 11th meridian because in this case edges of the map are aligned with Bering strait.

Comment from aHaSaN on 27 January 2016 at 14:55

Thanks Martin for this nice statistical visualization. WGS 84 is convenient, have you made this in webmap platform ?

Comment from dekstop on 27 January 2016 at 16:44

az09 – hah I’d lost track of OSM node IDs, but I’m not surprised we have over 3 billion now!

Thanks BushmanK! Will give that a go for the next iteration.

aHaSaN – I used QGIS for this. (At some point I’ll start doing web-based visualisations too. I’ve never produced OSM tiles, no idea what that would entail or whether it’d be worth the effort.)

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