OpenStreetMap is a free editable map of the world created by volunteers. It began in 2004 as an alternative to proprietary map data. The summary provides high-level information about OpenStreetMap's origins, growth, and importance. Over 260,000 registered users have mapped over 18 million points of interest and 11 million miles of roads across 69 countries. Analysis has found OpenStreetMap data to be of high enough quality to be used for many purposes. It is created through crowdsourcing rather than centralized production, representing a paradigm shift for data creation.

1. OpenStreetMap
The free wiki world map
Peter Batty
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2. December 3, 2007
Google OpenStreetMap
July 7, 2009
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6. Denver, CO Denver, CO
USA USA
“Mousetrap” junction
of I-25 and I-70
Cape Royal
Grand Canyon, AZ Cropston
USA England
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7. January 31, 2009
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8. Haiti - January 12, 2010
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9. Haiti - January 14, 2010
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10. Haiti - January 26, 2010
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11. Damage Assessment
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12. I am currently in Port Au Prince with
the Fairfax County Urban Search &
Rescue Team (USA-1) out of Fairfax,
VA, USA. I wish there was a way that I
can express to you properly how
important your OSM files were to us.
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14. Currently ~260,000 registered users
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15. What about quality?
Dr Muki Haklay of UCL
“OSM quality is beyond good enough, it is a product
that can be used for a wide range of activities”
Based on a detailed analysis
http://tinyurl.com/mukiosm
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16. Database
2007 data
69 countries
11m miles (18m km) of roads
18m points of interest
People “Creating, maintaining and delivering a
comprehensive, high quality map database is a
Field force 700 multi-step, labor-intensive process. We
Central production 270 currently employ over 270 employees in our
centralized production facility and a global
Technology 500 workforce of over 700 geographic analysts in
32 countries”
Total 3349
Financial
Revenue $853m (~€604m)
Data creation & distribution costs $396m (~€280m)
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17. Crowdsourcing is a paradigm shift for data creation
flickr.com/photos/jamescridland/613445810/
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18. Why bother?
As a mapper / user As a developer
It’s fun!! It’s free!!
Map what you want Access to vector data
It’s useful Download to mobile
Faster corrections devices
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19. Video at http://vimeo.com/2598878
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20. Backup
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