We are now facing major changes in the use of spatial data with an abundant access to data and a multiplication of software applications. This fact should become an opportunity for us to implement more advanced spatial analysis in our health research. This workshop aims at reviewing the new advances in the use of spatial data, regarding both data access and software solutions. This workshop is organized in the frame of the Franco-Thai Project GeoHealth Thai Platform (GeoHTP). GeoHTP is a two-year project (2014-2015) funded by the Franco-Thai Cooperation Program in Higher Education and Research. Since 2014, several teachings have been organized to cover the various aspects of geomatics applied to health at different levels.

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ArnaudArnaud VandecasteeleVandecasteele
Vincent HerbreteauVincent Herbreteau
Kraichat TantrakarnapaKraichat Tantrakarnapa
New practices inNew practices in
the use of spatial data,the use of spatial data,
with an insightwith an insight
for health studiesfor health studies

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Speakers
Arnaud VandecasteeleArnaud Vandecasteele
PhD in Geomatics, France
Post-Doc in Geomatics, Canada
(Open) Researcher
Owner of Mapali company
Vincent herbreteauVincent herbreteau
PhD in Health geography, France
Researcher at IRD, France

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I have a (geo) dream
To have a free accessfree access to all theall the
datadata needed for my research
To be able to easily collecteasily collect
and processprocess my geographic data
To improve current researchimprove current research by making
my datadata available to everyoneavailable to everyone

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Summary
What is Volunteered Geographic Information (VGI)1
Focus on OpenStreetMap2
New VGI trends3

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VVolunteeredolunteered
GGeographiceographic
IInformationnformation

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RULE 1RULE 1
FUNFUN
MAPSMAPS
SHOULD BE
MAKING
VGI rules
What is VGI ? Focus on OSM New VGI trends

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RULE 2RULE 2
EASYEASY
MAPSMAPS
SHOULD BE
MAKING
VGI rules
What is VGI ? Focus on OSM New VGI trends

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RULE 3RULE 3
USEFULUSEFUL
MAPSMAPS
SHOULD BE
MAKING
VGI rules
What is VGI ? Focus on OSM New VGI trends

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http://www.youtube.com/watch?v=eAFG6aQTwPkhttp://www.youtube.com/watch?v=eAFG6aQTwPk
The old way of doing maps
What is VGI ? Focus on OSM New VGI trends

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INTERFACESTOOLSDATA
No interoperability
No standards
Not appropriate Very complicated
interface
The old way of doing maps
What is VGI ? Focus on OSM New VGI trends

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VVolunteeredolunteered GGeographiceographic IInformationnformation
”
The widespreadThe widespread engagementengagement
of large numbers of privateof large numbers of private citizenscitizens,,
often withoften with littlelittle in the wayin the way
of formalof formal qualificationsqualifications,,
in thein the creation of geographic informationcreation of geographic information
Goodchild (2007)
“
Fortunately, things have changed
What is VGI ? Focus on OSM New VGI trends

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VGI
Citizen ScienceCitizen Science
Source : http://povesham.wordpress.com
Muki Haklay,
Citizen Science and Volunteered Geographic Information: Overview and Typology of Participation.
2013
Reconnecting science with civil societyReconnecting science with civil society
What is VGI ? Focus on OSM New VGI trends

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Google Map Maker
http://www.google.fr/mapmaker
OpenStreetMap
http://www.openstreetmap.org
Facebook Places
https://www.facebook.com/places/
WikiMapia
http://wikimapia.org
Examples of VGI projectsExamples of VGI projects
What is VGI ? Focus on OSM New VGI trends

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Do you know that you are
producing geographic information ?
Are the data produced
publicly available ?
CContributedontributed
GGeographiceographic
IInformationnformation
VVolunteeredolunteered
GGeographiceographic
IInformationnformation
Volunteering comes with an explicit understandingexplicit understanding of
whatwhat we are contributing, howhow we are contributing,
and future possibilitiesfuture possibilities of
the collected information’s use
“
”
Francis Harvey (2013)Francis Harvey (2013)
Not all VGI projects are the sameNot all VGI projects are the same
What is VGI ? Focus on OSM New VGI trends

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Citizen involvementCitizen involvement
Example of VGI (health) applicationExample of VGI (health) application
What is VGI ? Focus on OSM New VGI trends

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Humanitarian applicationsHumanitarian applications
Example of VGI (health) applicationExample of VGI (health) application
What is VGI ? Focus on OSM New VGI trends

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Focus on
OpenStreetMap

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The Wikipedia of mapsThe Wikipedia of maps
+ =
OpenStreetMapWikipedia
OSM is a collaborativecollaborative project to create
a freefree editable map of the worldmap of the world
What is OpenStreetMap (OSM) ?What is OpenStreetMap (OSM) ?
What is VGI ? Focus on OSM New VGI trends

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A feature = Geometry + Attributes
Node Line Polygon
amenityamenity = drinking_water= drinking_water
highwayhighway = primary= primary
buildingbuilding = yes= yes
OSM Data SchemaOSM Data Schema
What is VGI ? Focus on OSM New VGI trends

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polygonpolygon
Attributes :Attributes :
buildingbuilding = yes= yes
namename = music= music
lineline
Attributes :Attributes :
highwayhighway = primary= primary
namename = Allandale Road= Allandale Road
OSM Data SchemaOSM Data Schema
What is VGI ? Focus on OSM New VGI trends

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Source: http://wiki.openstreetmap.org/wiki/Stats
+ 2.1 million
+ 2.8 billion nodes
+ 286 million ways
+ 4.6 billion of GPS point
Started in 2004
Does it really work ?Does it really work ?
What is VGI ? Focus on OSM New VGI trends

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Source : http://www.geofabrik.de
April 2007April 2007
Paris : August 2006Paris : August 2006
April 2008April 2008
Dec 2008Dec 2008 Sept 2009Sept 2009
Dec 2010Dec 2010
Froma blank space...Froma blank space...
What is VGI ? Focus on OSM New VGI trends

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http://vimeo.com/2598878http://vimeo.com/2598878
To a world wide projectTo a world wide project
What is VGI ? Focus on OSM New VGI trends

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A map better than some others providers !A map better than some others providers !
What is VGI ? Focus on OSM New VGI trends

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“ We started with absolutely nothing,
a completely blank canvas [...]
Now most of the world has been mapped,
in varying degrees of detail,
and can be viewed on openstreetmap.org ”
Steve CoastSteve Coast
Creator of theCreator of the OSMOSM projectproject
From only one person...From only one person...
What is VGI ? Focus on OSM New VGI trends

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YOU !YOU !
To a community of practice !To a community of practice !
What is VGI ? Focus on OSM New VGI trends

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Day 1Day 1
Day 3Day 3
Day 28Day 28
20102010
OSM use cases: The Haiti earthquakeOSM use cases: The Haiti earthquake
What is VGI ? Focus on OSM New VGI trends

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Map Information
Data from OpenStreetMapOpenStreetMap,
GAUL, SRTM and JRC
OSM use cases: The Haiti earthquakeOSM use cases: The Haiti earthquake
What is VGI ? Focus on OSM New VGI trends

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Engaging local peopleEngaging local people
What is VGI ? Focus on OSM New VGI trends

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With VGI, creating geodata isWith VGI, creating geodata is
no longer expensiveno longer expensive,,
much more sustainablemuch more sustainable than other models,than other models,
scope forscope for greater detailgreater detail,,
more timely updatesmore timely updates
In summaryIn summary
What is VGI ? Focus on OSM New VGI trends

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NewNew VGIVGI trendstrends

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New dataset : Open Drone MapNew dataset : Open Drone Map
What is VGI ? Focus on OSM New VGI trends

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New dataset : Open Submarine MapNew dataset : Open Submarine Map
What is VGI ? Focus on OSM New VGI trends

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New dataset : Open Street ViewNew dataset : Open Street View
What is VGI ? Focus on OSM New VGI trends

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VGI Data QualityVGI Data Quality
What is VGI ? Focus on OSM New VGI trends

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VGI Data QualityVGI Data Quality
What is VGI ? Focus on OSM New VGI trends
Ballatore, 2012

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Two entities are similar if :
1 They are referenced by similar entities 2 They reference similar entities
P-Rank
Algorithm
landuse
=
forest
natural
=
wood
natural
=
tree
wood
=
mixed
landuse
=
forest
natural
=
wood
landuse
=
forest
natural
=
wood
natural
=
tree
VGI Data QualityVGI Data Quality
What is VGI ? Focus on OSM New VGI trends

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Highway = traffic_signalHighway = traffic_signal
VGI Data QualityVGI Data Quality
What is VGI ? Focus on OSM New VGI trends

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Sui D., Elwood S., and Goodchild M.
Crowdsourcing Geographic Knowledge
Volunteered Geographic Information (VGI)
in Theory and Practice.
Springer, 2013
Jamal Jokar Arsanjani, Alexander Zipf,
Peter Mooney, Marco Helbich
OpenStreetMap in GIScience
Experience, Research and Applications
Springer, 2015
ConclusionConclusion
Interesting VGI Readings (scientific)Interesting VGI Readings (scientific)

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Bennett J.
OpenStreetMap
Be your own cartographer.
Packt Publishing, 2010
Ramm F., Topf J., and Chilton S.
OpenStreetMap
Using and enhancing the free map of the world
UIT Cambridge, 2010
ConclusionConclusion
Interesting VGI ReadingsInteresting VGI Readings

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http://learnosm.org
LearnOSM
http://learnosm.org
OSM Wiki
http://wiki.openstreetmap.org/wiki/
ConclusionConclusion
WebsitesWebsites