Blossoms, Weeds, and blades of grass Growing the map Photo CC BY-SA 2.0 Katy Walters: http://www.geograph.org.uk/photo/231339
Photo: Frühlingsblumen Krokus by Benjamin Gimmel CCBYSA 2 etc on wikimedia commons: http://commons.wikimedia.org/wiki/File:Fr%C3%BChlingsblumen_Krokus.jpg
Photo: CC BY 2.0 psd on flickr: http://flic.kr/p/2uUoQ
Photo CC BY-SA 2.0 mariosp on flickr: http://flic.kr/p/8A1DsY
Photo GFDL/CCBYSA3 Quadell on wikimedia commons: http://commons.wikimedia.org/wiki/File:Wald_Vergissmeinnicht.jpg
Keeping an eye on the map
Photo CC BY 2.0 Slideshow Bruce on flickr: http://flic.kr/p/7YGuns
Image by Kamikaze Stoat CC BY 2.0 on flickr http://flic.kr/p/rMHgf
Imports & U.S.
Even coverage Photo CC BY-SA 2.0 AdamKR on flickr http://flic.kr/p/7SkGUP
Even coverage. More detail CC BY-SA 2.0 Lilli2de on flickr http://flic.kr/p/8jGXZC
Blossoming Denver and the U.S.
Before TIGER ...waiting for TIGER
After TIGER Still slow Negative effects of imports?
“ The best imports are those we avoid.” Frederik Ramm “ Imports bad. Surveying good”
Do imports stifle community?
Knowing the data is available
Landuse in rural France
Active community in rural Austria
Why would it stifle the community?
Blank slate entices contribution and exploration
Existing data and existings mappers more exciting than just existing data.
Imported data is not beginner friendly
A field of corn ...or thorny brambles Photo CC BY SA 2 Richard Webb on geograph http://www.geograph.org.uk/photo/640790
“ It's not enough to just make sure you're leaving the map in a better state ... You should make sure you are you're leaving the community in a better shape ” Frederik Ramm
Users editing some POI types, normalised to urban population
Fixup vs Community engangement
New imports should involve planned fixup
“Leave the community in a better state”
Engage, discuss and plan before, during and after
Facing facts... facing fixup Imports are done. Move on. ...Fix up!
Progress reports motivate
Spell it out. Video tutorials
A bit of weeding to do... CCBYSA2 Gordon Joly : http://flic.kr/p/aoj2ij
Trouble in the garden
Wonderful blossoms of details ... Uneven coverage Bad for map users
Uneven coverage problems for users
Jigsaw puzzle example
A deeper problem. Levels of details
Blossoms of mega-detail near home
new ideas for types of features (& tags)
Progressively more insane
POI types. Map every shop
Building outlines and addresses
Walls and fences (Pedestrian routing)
Sidewalks on every road
Roads as areas
Every blade of grass
Every blade of grass Crazy example ...but where to draw the line? Problem?
Wasted time of mappers
CCBY2 meddygarnet: http://flic.kr/p/7YZzim
Encourage sensible tagging proposals
Config default/prominent renderers and toolchains
Efforts to even out coverage
A new message? :
“Consider the levels of detail around you”
...more like a field of corn
Need more blossoms Need more even coverage
CCBY2 gardenvisit.com : http://flic.kr/p/6zbGiw
Harry Wood has been an OpenStreetMap enthusiast, and contributor since 2006. He works as a senior software engineer at http://placr.co.uk on projects relating to transport and GPS data analysis. Previously he worked in a technical and OpenStreetMap community development role at CloudMade. In 2011 he has continued to volunteer for the project in several roles, as mapper, developer, documenter, community coordinator, promoter, and the chief London event organiser. http://harrywood.co.uk These slides are freely re-usable under the Creative Commons Attribution-ShareAlike 2.0 License , Note that open licenses on some of the images are similar but not the same as this. Please retain all credits Map images cc-by-sa2 OpenStreetMap.org contributors