volunteered geographic information
TRANSCRIPT
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Volunteered Geographic InformationDatenqualität und Nutzungspotentiale am Beispiel von OpenStreetMap
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Time MagazinePerson of the Year 2006
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Web 2.0
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GeoWeb 2.0
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GeoWeb 2.0
Kartenmaterial+
API
OpenLayers
MapStraction
MapBender
Implementierung des GeoWeb 2.0
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GeoWeb 2.0wikimapia.org
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Volunteered GeographicInformation
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Volunteered GeographicInformation„
[...] the widespread engagement of large numbers of private citizens, often with little in the way of formal qualifications, in the creation of geographic information, a function that for centuries has been reserved to official agencies. They are largely untrained and their actions are almost always voluntary, and the results may or may not be accurate.
Goodchild, M. (2007): Citizens as sensors: The world of volunteered geography.
GeoJournal, 69, 211-221.
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OpenStreetMap
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OpenStreetMap
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OpenStreetMapDatenmodellDatenzugriff
DatenqualitätNutzungspotentiale
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OpenStreetMapDatenmodell
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Nodes Ways Flächen Relations
amenity: fuelname: ,Shell‘
highway: residentialname: ,Mönchhofstraße‘
OpenStreetMapDatenmodell
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OpenStreetMapDatenzugriff
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OpenStreetMapDatenzugriffPlanet File
planet.openstreetmap.org
XML
Datenbankauszug der kompletten Erde
~ 200GB
XML
Change Files
<?xml version="1.0" encoding="UTF-8"?><osm version="0.6" generator="OpenStreetMap planet.c" timestamp="2011-02-16T01:11:04Z"><!-- copyright="OpenStreetMap and contributors" attribution="http://www.openstreetmap.org/copyright/" license="http://creativecommons.org/licenses/by/2.0/" --> <bound box="-90,-180,90,180" origin="http://www.openstreetmap.org/api/0.6" />... <changeset id="878132" created_at="2009-04-21T11:33:10Z" num_changes="5" closed_at="2009-04-21T11:34:22Z" open="false" min_lon="141.4289062" min_lat="43.0394291" max_lon="141.4390275" <tag k="comment" v="Add a tertiary road" /> <tag k="created_by" v="JOSM" /> </changeset>... <node id="270387" lat="50.8777604" lon="-1.5338646" timestamp="2006-08-31T14:39:25Z" version="1" changeset="99256" user="nickw" uid="94"> <tag k="created_by" v="osmeditor2" /> </node>... <way id="99947113" timestamp="2011-02-15T22:35:01Z" version="1" changeset="7299165" user="isnogoud" uid="78608"> <nd ref="1155236845" /> <nd ref="1155223179" /> ..... <nd ref="1155236845" /> <tag k="building" v="yes" /> <tag k="note:qadastre" v="v0.2" /> <tag k="source" v="cadastre-dgi-fr source : Direction Générale des Impôts - Cadastre. Mise à jour : 2011" /> <tag k="wall" v="no" /> </way>.... <relation id="1430044" timestamp="2011-02-16T01:09:09Z" version="1" changeset="7300553" user="apollinaire" uid="185687"> <member type="way" ref="27549584" role="street"/> <member type="node" ref="1155672139" role="house"/> <member type="node" ref="1155672022" role="house"/> .... <member type="node" ref="1155672148" role="house"/> <tag k="name" v="Rue Geoffroy-Drouet" /> <tag k="type" v="associatedStreet" /> </relation></osm>
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OSM-API
http://www.openstreetmap.org/api/0.6/map?bbox=10.79,52.24,10.83,52.25
XMLAuszug des Gebietes
OpenStreetMapDatenzugriff
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Drittanbieterdownload.geofabrik.de/osm
OpenStreetMapDatenzugriff
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Weitere Informationen
wiki.openstreetmap.org/wiki/Planet.osm
OpenStreetMapDatenzugriff
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OpenStreetMapDatenqualität
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OpenStreetMapDatenqualität
Gesamtwegenetz
Vergleich zwischen OpenStreetMap und TeleAtlasrelative Abweichung pro km² in %
Zielstra, D. and Zipf, A. (2010): A Comparative Study of Proprietary Geodata and Volunteered Geographic Information for Germany. AGILE 2010. The 13th AGILE International Conference on Geographic Information Science. Guimarães, Portugal.
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Kraftfahrzeugwegenetz
Vergleich zwischen OpenStreetMap und TeleAtlasrelative Abweichung pro km² in %
Zielstra, D. and Zipf, A. (2010): A Comparative Study of Proprietary Geodata and Volunteered Geographic Information for Germany. AGILE 2010. The 13th AGILE International Conference on Geographic Information Science. Guimarães, Portugal.
OpenStreetMapDatenqualität
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Fußgängerwegenetz
Vergleich zwischen OpenStreetMap und TeleAtlasrelative Abweichung pro km² in %
Zielstra, D. and Zipf, A. (2010): A Comparative Study of Proprietary Geodata and Volunteered Geographic Information for Germany. AGILE 2010. The 13th AGILE International Conference on Geographic Information Science. Guimarães, Portugal.
OpenStreetMapDatenqualität
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0
7,5
15
22,5
30
14.04.09 16.07.09 01.12.09 09.04.10
Zielstra, D. and Zipf, A. (2010): A Comparative Study of Proprietary Geodata and Volunteered Geographic Information for Germany. AGILE 2010. The 13th AGILE International Conference on Geographic Information Science. Guimarães, Portugal.
Zeitliche Entwickung des Gesamtwegenetzes
Vergleich zwischen OpenStreetMap und TeleAtlasDifferenz in %
OpenStreetMapDatenqualität
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Points of InterestAnzahl aller Points of Interest in OpenStreetMap pro km²
Neis, P., Zielstra, D., Zipf, A., Struck , A. (2010): Empirische Untersuchungen zur Datenqualität von OpenStreetMap - Erfahrungen aus zwei Jahren Betrieb mehrerer OSM-Online-Dienste. AGIT 2010. Symposium für Angewandte Geoinformatik. Salzburg. Austria.
OpenStreetMapDatenqualität
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Points of Interest
Vergleich zwischen OpenStreetMap und TeleAtlasabsolute Abweichung aller Points of Interest pro km²
Neis, P., Zielstra, D., Zipf, A., Struck , A. (2010): Empirische Untersuchungen zur Datenqualität von OpenStreetMap - Erfahrungen aus zwei Jahren Betrieb mehrerer OSM-Online-Dienste. AGIT 2010. Symposium für Angewandte Geoinformatik. Salzburg. Austria.
OpenStreetMapDatenqualität
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Neis, P., Zielstra, D., Zipf, A., Struck , A. (2010): Empirische Untersuchungen zur Datenqualität von OpenStreetMap - Erfahrungen aus zwei Jahren Betrieb mehrerer OSM-Online-Dienste. AGIT 2010. Symposium für Angewandte Geoinformatik. Salzburg. Austria.
Points of Interest
Vergleich zwischen OpenStreetMap und TeleAtlasabsolute Abweichung übereinstimmder Points of Interest pro km²
OpenStreetMapDatenqualität
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Qualitätsverbesserungdurch automatisierte Verfahren
OpenStreetMapDatenqualität
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Qualitätsverbesserungosmatrix.uni-hd.de
Mittlere Anzahl an Edits per Nutzer
OpenStreetMapDatenqualität
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OpenStreetMapNutzungspotentiale
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OpenStreetMapNutzungspotentialeVisualisierung
osm-wms.de
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Visualisierunghistosm.org
OpenStreetMapNutzungspotentiale
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Routingopenrouteservice.org
OpenStreetMapNutzungspotentiale
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Routingrollstuhlrouting.de
OpenStreetMapNutzungspotentiale
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Disaster Responseresultmap.neis-one.org/japan.html
OpenStreetMapNutzungspotentiale
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6 Tage vor dem Beben
Disaster ResponseHaiti Erdbeben 12.01.2010
OpenStreetMapNutzungspotentiale
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1 Tag nach dem Beben
Disaster ResponseHaiti Erdbeben 12.01.2010
OpenStreetMapNutzungspotentiale
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5 Tage nach dem Beben
Disaster ResponseHaiti Erdbeben 12.01.2010
OpenStreetMapNutzungspotentiale
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17 Tage nach dem Beben
Disaster ResponseHaiti Erdbeben 12.01.2010
OpenStreetMapNutzungspotentiale
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3D Diensteosm-3d.org
OpenStreetMapNutzungspotentiale
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3D Diensteosm-3d.org
OpenStreetMapNutzungspotentiale
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Danke.Fragen?
Oliver Roick
Ruprecht-Karls-Universität HeidelbergGeographisches InstitutChair of GIScience
Berliner Str. 48, 69120 Heidelberg+49 (6221) [email protected]
twitter.com/oliverroickslideshare.net/oliverroick