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Grassroots Mapping
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Coleman McCormick
April 25, 2013
Technology
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400
Grassroots Mapping
An intro to OpenStreetMap + its community culture. For Ignite Tampa Bay 2013.
Coleman McCormick
April 25, 2013
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Transcript
grassroots mapping building our own maps with open data coleman
mccormick @colemanm
my name is coleman @colemanm
geography cartography software science to create better maps + data
i use these
making maps is historically the domain of government agencies big
businesses militaries imagery providers
google yahoo apple
OpenStreetMap the alternative openstreetmap.org
volunteer-constructed, open dataset of the world’s geographic information a gigantic
collaborative project to map the world (the wikipedia of maps)
gigantic? wikipedia: 42 GB openstreetmap: 370 GB where does all
this data come from? image: tom macwright
1.1 million contributors millions + millions of edits since 2004
2.7 billion GPS points democratizing the creation of maps photo: justin miller
how it’s made + compatibly-licensed data imports (e.g. US Census,
CanVec, + many more)
using GPS :: traces from europe planet.openstreetmap.org/gps
who does this stuff?
people are contributing high-quality, local expertise instead of someone from
another city showing up to map your neighborhood, you map your own cyclists humanitarian workers cartographers hikers runners et al. photo: mapbox
ground-truthing + local authority are lacking in most commercial map
data openstreetmap gives us maps built by the people that live there
senegal russia philippines italy local communities all over the world
(just to name a few...)
why contribute? because openstreetmap is used by governments • software
companies • schools photo: jean-louis zimmerman your openstreetmap contributions help real people
how you can join us osmtampabay.org @osmtampabay
USF campus great work by local mappers
when anyone can contribute, you also see awesome stuff like
this
thanks! coleman mccormick
[email protected]
@colemanm spatialnetworks.com colemanm.org