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OpenStreetMap at Where2.0Now
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OpenStreetMap at Where2.0Now


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Presentation given at the Where2.0Now conference in Harrogate …

Presentation given at the Where2.0Now conference in Harrogate

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  • I'm going to talk about the OpenStreetMap project. A lot of you will have heard of it people are increasingly interested in Open Licensed GeoData.
  • As with open source software, open licensed data is all about being free. Free as in 'costs nothing' and...
  • free as in 'freedom'
  • NeoGeo ideas are all about free and freedom Geo Power in the hands of small players. Revolution! Powerful flexible APIs for mashing in datasets and doing snazzy visualisations. These services give us a lot of freedom right?
  • Freedom is all about the raw data. Not just about layering your own data onto map Have all the map data right there on your GIS system. Raw data is what it's all about. Big players hold the data. You always pay to license access and use of raw data. ...until now
  • Transcript

    • 1. : Open Licensed GeoData Harry Wood
    • 2. Open Licensed FREE Costs £0
    • 3. Open Licensed FREEDOM
    • 4. The NeoGeo Revolution
    • 7. RAW DATA
    • 8. Building a map from scratch
      • No copying, No tracing, No “deriving”
      • 9. On the ground surveys
      • 10. Fun with gadgets, or just with paper
      ....lot of work GPS
    • 11. Community Lot of people 180,000 registered users
    • 12. Community Increasing editing activity
    • 13. Large online community. Many hands Openly editable (and easy) Poor quality contributions?
      • Gradual refinement
      • 14. Assume good faith
      • 15. Monitoring and history features
      ....Remarkably it works! Sounds familiar? Also Open Licensed and not-for-profit
    • 16. Street level mapping Footpaths, POIS
    • 17.
      • Completion
        • Variable. Wherever we have mappers
        • 18. New mappers appear all the time
        • 19. Can only get better
      • Accuracy
        • Generally very good
        • 20. OpenStreetMappers take pride
    • 21.  
    • 22. Nodes Ways Tags amenity=pub name=Hare & Hounds highway=residential name=Court Street
    • 23. XML API
        • Read a bbox of map data
        • 24. Write changes to elements. RESTful
      “Planet” downloads
        • 7 Gb compressed XML (or smaller diffs)
        • 25. Load in to PostGIS
        • 26. Generate shapefiles
          • (
        • Render using Mapnik
      Data Access
    • 27.  
    • 28. Style Editor
    • 29.
    • 30. Take the free data Take regular updates Feed your data in? Work with the community ... ...
    • 31.
    • 32. Harry Wood's interest in internet collaboration and web2.0 technologies lead him to the OpenStreetMap project three years ago, as a hobbyist mappper, and as an increasingly passionate evangelist, community coordinator and developer. Turning this hobby into a profession, he worked at CloudMade developing core features of the OpenStreetMap website and working on CloudMade products and services which help developers use OpenStreetMap data. In 2010 he plans to operate as a freelance OpenStreetMap consultant These slides are (of course) freely re-usable under the Creative Commons Attribution-ShareAlike 2.0 License Map images cc-by-sa2 contributors.,,, ö Thanks also to for free clipart