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The GeoCoding Revolution                    Richard Cantwell             richard.cantwell@gamma.ie                       w...
The Art (or Science) of converting an address to a point on a map
It isnt uncommon for neighbours along a street to write theiraddresses differently:56 Woodbrook Sq.,Castleknock,Dublin 154...
Ballymun or Glasnevin?www.geodirectory.ie
A Rural Examplewww.openstreetmap.org
Fast, Simple, Accurate.... Choose Two.
Less than 10% of users will make a second attemptSource: Public facing GeoCoding system usage metrics
Know what you’re measuringPurpose and Fitness of Use
Match ConfidenceScale &
Know what you’re measuringSample Return, with multiple Match Levels.
Impose Order on Freeform Data.... After time of capture.
Some “Do’s and Donts”   • Do expect a variety of address formats and contents, even for the     same address point.   • Do...
End ResultSample output, with Match Level, Grid Refs, Lat-Long and other identifiers
Enabling a single view of the citizen
Centralised Address Database at the heart of the organisation
?                                              Postcodes? ? ?                                 ?Coming soon to an address d...
Blanchardstown – Blakestown: Pop 32,305 (2006)
Source: GAMMA Usage Metrics
AutoAddress for MapInfo:  +
Key points:Ongoing developments in data and systems mean it is now possibleto geocode in desktop GIS with acceptable match...
petewarden.github.com/iPhoneTracker
New sources of GeoDatahttp://www.flickr.com/photos/walkingsf/4672160490
New Kinds of Address Data & PlatformsFourSquare data (via GeoRSS) on a map from http://www.dotspotting.org
Key Points:   • Data Protection and Privacy concerns are paramount.   • The range and depth of available spatial data is e...
2012 is going to be a revolutionary year:   • Advances in GeoCoding.   • Postcodes are coming.   • New datasets and source...
Thank YouRichard Cantwellrichard.cantwell@gamma.iewww.gamma.ie
The GeoCoding Revolution
The GeoCoding Revolution
The GeoCoding Revolution
The GeoCoding Revolution
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The GeoCoding Revolution
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The GeoCoding Revolution

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Presentation given at the MapInfo Irish User Conference 2012, looking at geocoding and other opportunities and challenges in GIS in Ireland.

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The GeoCoding Revolution

  1. 1. The GeoCoding Revolution Richard Cantwell richard.cantwell@gamma.ie www.gamma.ie
  2. 2. The Art (or Science) of converting an address to a point on a map
  3. 3. It isnt uncommon for neighbours along a street to write theiraddresses differently:56 Woodbrook Sq.,Castleknock,Dublin 1542 Woodbrook Sq.,Diswellstown Rd.,Clonsilla,Dublin 1534 Woodbrook Sq.,Carpenterstown,Dublin 15
  4. 4. Ballymun or Glasnevin?www.geodirectory.ie
  5. 5. A Rural Examplewww.openstreetmap.org
  6. 6. Fast, Simple, Accurate.... Choose Two.
  7. 7. Less than 10% of users will make a second attemptSource: Public facing GeoCoding system usage metrics
  8. 8. Know what you’re measuringPurpose and Fitness of Use
  9. 9. Match ConfidenceScale &
  10. 10. Know what you’re measuringSample Return, with multiple Match Levels.
  11. 11. Impose Order on Freeform Data.... After time of capture.
  12. 12. Some “Do’s and Donts” • Do expect a variety of address formats and contents, even for the same address point. • Don’t argue with the users about the one they use. • Do anticipate that non-unique addresses will be common. • Do trade off address process completeness for speed and clarity. • Do know what level of match you need: building level, county level etc. • Do record the match level for each address. • Do capture addresses in free form, sort out structure later. • Don’t let your back-end IT systems determine how you store an address.
  13. 13. End ResultSample output, with Match Level, Grid Refs, Lat-Long and other identifiers
  14. 14. Enabling a single view of the citizen
  15. 15. Centralised Address Database at the heart of the organisation
  16. 16. ? Postcodes? ? ? ?Coming soon to an address database near you
  17. 17. Blanchardstown – Blakestown: Pop 32,305 (2006)
  18. 18. Source: GAMMA Usage Metrics
  19. 19. AutoAddress for MapInfo: +
  20. 20. Key points:Ongoing developments in data and systems mean it is now possibleto geocode in desktop GIS with acceptable match rates, withoutinteractive processing, although interactive processing isrecommended.Postcodes are coming, they represent a major opportunity to widenthe remit of GIS Managers.
  21. 21. petewarden.github.com/iPhoneTracker
  22. 22. New sources of GeoDatahttp://www.flickr.com/photos/walkingsf/4672160490
  23. 23. New Kinds of Address Data & PlatformsFourSquare data (via GeoRSS) on a map from http://www.dotspotting.org
  24. 24. Key Points: • Data Protection and Privacy concerns are paramount. • The range and depth of available spatial data is exploding. • New systems and platforms to address these are available.
  25. 25. 2012 is going to be a revolutionary year: • Advances in GeoCoding. • Postcodes are coming. • New datasets and sources of data. • New technologies.Mean that this year has huge opportunities for GIS Managers.
  26. 26. Thank YouRichard Cantwellrichard.cantwell@gamma.iewww.gamma.ie

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