<div dir="ltr">Thanks Joost,<div><br></div><div>It's always good to see such graphs. I'm interested to learn </div><div><br></div><div>* What are we mapping now ?</div><div>* What did we map in the past ?</div><div>* Who is mapping what ?</div><div>* Who is mapping similar things as me ? (Or am I the only one mapping feature X ? / can I ask someone also for help with feature X ?)</div><div>* Where are we mapping feature X (on town/village level) ?</div><div><br></div><div><br></div><div>With "what" I mean e.g. categories of features: streets (highway tags), landuse/landcover, boundaries, buildings, shops, etc.</div><div>However, for some purposes categories might be broken. mapping amenity=library or amenity=bench are quite different. The same holds for tourism=hotel and tourism=information,information=board. The library and hotel are "important" features, bench or an information board not so. I know "important" is relative, but I hope you understand what I mean.</div><div><br></div><div>Of course this is harder when we start thinking about "attributes": turn lanes, destinations, house numbers, or additional attributes for amenity=bicycle_parking (such as covered or bicycle_parking=...), etc.</div><div><br></div><div>For the last two questions (mapping feature X) the ultimate goal would be to answer questions such as "Who else is mapping bicycle_parkings ?" With which attributes. ? Where is feature X not mapped at all ?</div><div><br></div><div>Regards</div><div><br></div><div>m</div><div><br></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Mon, Nov 9, 2015 at 8:59 AM, joost schouppe <span dir="ltr"><<a href="mailto:joost.schouppe@gmail.com" target="_blank">joost.schouppe@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Hi all,<div><br></div><div>So, Nicolas' remark after my last post got me interested again in some stats about OSM data in Belgium. Is there any difference between Brussels, Wallonia and Flanders?</div><div>Of course, I made a little mistake and my laptop will have to redo some calculations this night, but here's something that worked.</div><div><br></div><div>How did data density evolve in the three parts of the country over the last years?</div><div><br></div><div>This is a simple count of nodes that were in existence on january first of any year. So that includes independent nodes, but also nodes used (and used again and again) for building lines and relations.</div><div>To make the regions comparable, I standardized by population. The idea is that most stuff that we map is a function of humans, no so much of area. (Yes, I know, same population in a larger area would probably imply more things to map)</div><div><br></div><div>So this graph shows the evolution of nodes per 1000 of population. Flanders was clearly highest since 2010. Wallonia started of much quicker than Brussels, but can't keep up with Flanders. In Brussels we have a very obvious jump in 2014. That's probably the buildings/addresses import.</div><div><br></div><div><a href="http://i.imgur.com/RPK38DM.jpg" target="_blank">http://i.imgur.com/RPK38DM.jpg</a><br></div><div><img src="http://i.imgur.com/RPK38DM.jpg" width="544" height="325"><br><br></div><div>Next thing I want to do is see how many different mappers have built the map.</div><div><br></div><div>I just stumbled upon the very first nodes and lines in Flanders, and the user is still active. The story of these nodes is in his diary, very bottom of the page: <a href="http://wiki.openstreetmap.org/wiki/User:LA2/Diary_for_Q3_2005" target="_blank">http://wiki.openstreetmap.org/wiki/User:LA2/Diary_for_Q3_2005</a></div><span class="HOEnZb"><font color="#888888"><div><br clear="all"><div><br></div>-- <br><div><div dir="ltr"><div><div dir="ltr">Joost @</div><div dir="ltr"><a href="http://www.openstreetmap.org/user/joost%20schouppe/" target="_blank">Openstreetmap</a> | <a href="https://twitter.com/joostjakob" target="_blank">Twitter</a> | <a href="https://www.linkedin.com/pub/joost-schouppe/48/939/603" target="_blank">LinkedIn</a> | <a href="http://www.meetup.com/OpenStreetMap-Belgium/members/97979802/" target="_blank">Meetup</a> | <a href="https://www.reddit.com/u/joostjakob" target="_blank">Reddit</a> | <a href="https://joostschouppe.wordpress.com/" target="_blank">Wordpress</a></div></div></div></div>
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