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OpenStreetMap SOTM 2011 - Blossoms Weeds and Blade of Grass

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See https://harrywood.co.uk/blog/2011/10/10/sotm-talk/ - slide notes on Harry Wood blog

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OpenStreetMap SOTM 2011 - Blossoms Weeds and Blade of Grass

  1. 1. Blossoms, Weeds, and blades of grass Growing the map Photo CC BY-SA 2.0 Katy Walters: http://www.geograph.org.uk/photo/231339
  2. 3. Photo: Frühlingsblumen Krokus by Benjamin Gimmel CCBYSA 2 etc on wikimedia commons: http://commons.wikimedia.org/wiki/File:Fr%C3%BChlingsblumen_Krokus.jpg
  3. 4. Cambridge
  4. 5. Photo: CC BY 2.0 psd on flickr: http://flic.kr/p/2uUoQ
  5. 7. Photo CC BY-SA 2.0 mariosp on flickr: http://flic.kr/p/8A1DsY
  6. 9. Photo GFDL/CCBYSA3 Quadell on wikimedia commons: http://commons.wikimedia.org/wiki/File:Wald_Vergissmeinnicht.jpg
  7. 10. Keeping an eye on the map
  8. 13. Photo CC BY 2.0 Slideshow Bruce on flickr: http://flic.kr/p/7YGuns
  9. 14. Image by Kamikaze Stoat CC BY 2.0 on flickr http://flic.kr/p/rMHgf
  10. 17. Imports & U.S.
  11. 18. Even coverage Photo CC BY-SA 2.0 AdamKR on flickr http://flic.kr/p/7SkGUP
  12. 20. Even coverage. More detail CC BY-SA 2.0 Lilli2de on flickr http://flic.kr/p/8jGXZC
  13. 21. Blossoming Denver and the U.S.
  14. 22. Before TIGER ...waiting for TIGER
  15. 23. After TIGER Still slow Negative effects of imports?
  16. 24. <ul>“ The best imports are those we avoid.” Frederik Ramm “ Imports bad. Surveying good” </ul>Matt Amos
  17. 25. Do imports stifle community? <ul><li>Matt's simulation
  18. 26. Knowing the data is available </li></ul>
  19. 27. Landuse in rural France
  20. 28. Active community in rural Austria
  21. 29. Why would it stifle the community? <ul><li>Blank slate entices contribution and exploration
  22. 30. Existing data and existings mappers more exciting than just existing data.
  23. 31. Imported data is not beginner friendly </li></ul>
  24. 32. Atlanta example
  25. 33. A field of corn ...or thorny brambles Photo CC BY SA 2 Richard Webb on geograph http://www.geograph.org.uk/photo/640790
  26. 34. “ 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
  27. 35. Users editing some POI types, normalised to urban population
  28. 36. Fixup vs Community engangement <ul><li>New imports should involve planned fixup
  29. 37. “Leave the community in a better state”
  30. 38. Engage, discuss and plan before, during and after </li></ul>
  31. 39. Facing facts... facing fixup Imports are done. Move on. ...Fix up! <ul><li>Progress reports motivate
  32. 40. Gamification
  33. 41. Documentation. </li><ul><li>Spell it out. Video tutorials </li></ul></ul>
  34. 42. 250 cities
  35. 43. Duplicate nodes
  36. 44. TIGER alignment
  37. 45. TIGER alignment
  38. 46. Cleveland example
  39. 47. Important. Improvements
  40. 48. Keep Right
  41. 49. A bit of weeding to do... CCBYSA2 Gordon Joly : http://flic.kr/p/aoj2ij
  42. 50. Trouble in the garden <ul>Wonderful blossoms of details ... Uneven coverage Bad for map users </ul>
  43. 51. Uneven coverage problems for users <ul><li>Jigsaw puzzle example </li></ul><ul><li>Blossoms of
  44. 52. building coverage
  45. 53. Ugly map! </li></ul>
  46. 54. A deeper problem. Levels of details <ul><li>Blossoms of mega-detail near home
  47. 55. More details </li><ul><li>new ideas for types of features (& tags) </li></ul></ul>
  48. 56. Progressively more insane <ul><li>POI types. Map every shop
  49. 57. Building outlines and addresses
  50. 58. Walls and fences (Pedestrian routing)
  51. 59. Sidewalks on every road
  52. 60. Roads as areas
  53. 61. Every tree
  54. 62. Every plant
  55. 63. Every blade of grass </li></ul>
  56. 64. Every blade of grass Crazy example ...but where to draw the line? Problem? <ul><li>Even coverage
  57. 65. Wasted time of mappers
  58. 66. (new mappers) </li></ul>CCBY2 meddygarnet: http://flic.kr/p/7YZzim
  59. 67. Solution? <ul><li>Encourage sensible tagging proposals
  60. 68. Config default/prominent renderers and toolchains
  61. 69. Efforts to even out coverage
  62. 70. A new message? :
  63. 71. “Consider the levels of detail around you” </li></ul>...more like a field of corn
  64. 72. Need more blossoms Need more even coverage
  65. 73. CCBY2 gardenvisit.com : http://flic.kr/p/6zbGiw
  66. 74. 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

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