[Talk-GB] 10 fascinating facts about OSM & OSGB

sk53.osm sk53.osm at gmail.com
Thu Apr 18 09:27:44 UTC 2013


OSGB has just tweeted it's 10 fascinating facts. I thought it would be fun
to compare with OSM

   1. Pylons: 80,517 ; 58,487
(OSM<http://taginfo.openstreetmap.org.uk/search?q=tower#values>
   )
   2. Post Boxes: 93.728 (OSGB); 42,742
(OSM<http://taginfo.openstreetmap.org.uk/search?q=post_box#values>
   )
   3. Camp sites: 8,908 (OSGB); 1 274
(camp_site<http://taginfo.openstreetmap.org.uk/search?q=camp_site#values>)
   + 1 918 (caravan_site<http://taginfo.openstreetmap.org.uk/search?q=caravan#values>)
   = 3,192 (OSM)
   4. Buildings: 35,397,754 (OSGB); 1,890,835
(OSM<http://taginfo.openstreetmap.org.uk/search?q=building>
   )
   5. Bus Stops: 354,099 (OSGB); 215,720
(OSM<http://taginfo.openstreetmap.org.uk/search?q=fuel#values>
   )
   6. 2,115,006 (OSGB);
   7. Petrol Stations: 7,702 (OSGB); 5,197
(OSM<http://taginfo.openstreetmap.org.uk/search?q=fuel#values>
   )
   8. Addresses: 27,341,262 (OSGB); 532,886
(OSM<http://taginfo.openstreetmap.org.uk/keys/addr:housenumber>
   )
   9. Electricity Poles: 183, 987 (OSGB); 94,199
(OSM<http://taginfo.openstreetmap.org.uk/search?q=pole#values>
   )
   10. Road length: 407,532 km (OSGB); 522,627 (OSM)


Of course there is no guarantee we are comparing like for like (although
its only power=pole which looks suspiciously high, I suspect we map low
power lines not included by OSGB).

All values from UK taginfo (except for road length, which I queried from a
snapshot schema), no data merging or need to query multiple sources, and
certainly no need for an IBM Netezza appliance.

I thought I'd add a few more quirky OSM values:

   1. 5 <http://taginfo.openstreetmap.org.uk/tags/royal_cypher=EVIIIR> post
   boxes with Edward VIII's royal cypher
   2. only 110<http://taginfo.openstreetmap.org.uk/tags/memorial=war_memorial>War
Memorials
   3. 1830 <http://taginfo.openstreetmap.org.uk/search?q=police#values>Police
and
   1518 <http://taginfo.openstreetmap.org.uk/search?q=fire#values> Fire
   Stations
   4. 847 Fire Hydrants (see above)
   5. 1378 <http://taginfo.openstreetmap.org.uk/search?q=real_ale>establishments
purveying Real Ale, and
   156 <http://taginfo.openstreetmap.org.uk/search?q=cider> Real Cider out
   of 32,624 Pubs <http://taginfo.openstreetmap.org.uk/search?q=pub#values>and
   1717 Bars <http://taginfo.openstreetmap.org.uk/search?q=bar#values>(including
1 with ale_supply_limited, and ONLY 1 with
   osm:london=approval<http://taginfo.openstreetmap.org.uk/keys/osm%3Alondon#overview>
   )
   6. 4771 <http://taginfo.openstreetmap.org.uk/keys/bicycle_parking>Bicycle
Parking locations
   7. around 300http://taginfo.openstreetmap.org.uk/search?q=hide#valuesbird/wildlife
hides
   8. 2 <http://taginfo.openstreetmap.org.uk/search?q=knitting#values>knitting
shops (shows gender of mappers I suspect)
   9. 5552 <http://taginfo.openstreetmap.org.uk/keys/stile#values> stiles
   10. 1774 <http://taginfo.openstreetmap.org.uk/search?q=lock> canal locks

Jerry
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