Tag: Analysis
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Ebola Response Map and OSM contributor analysis
For almost eight months the OpenStreetMap (OSM) community has been collecting geo information for the West Africa Ebola outbreak response now. The collective work of the crowd is somewhat managed by the Humanitarian OpenStreetMap Team (HOT) …
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Welcome to an additional family member – OSMstats
Maybe some of you are already familiar with “OSMstats”, a website that provides numerous statistics about the OpenStreetMap (OSM) project. The site was created and is maintained by the two guys at altogetherlost.com. However, OSMstats has now been moved to the ResultMaps domain at http://osmstats.neis-one.org …
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The Average Age of OpenStreetMap Objects
Joseph Reeves asked me on twitter the other day if “anyone knows the average age of @openstreetmap objects?“. Here we go: Based on the complete OSM data history file from here (June 14th, 2014) and some additional lines of code, I conducted a simple analysis. Overall 400,000 mappers of the more than 1.7 million registered…
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A précis: Where are the US mappers at?
This blog post is a summary of Dennis’ and my State of the Map (SotM) United States presentation. Maybe some of you already know about our publication: “Comparison of Volunteered Geographic Information Data Contributions and Community Development for Selected World Regions”. From the abstract: “Our findings showed significantly different results in data collection efforts and…
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It’s about time – OpenStreetMap Contributor Activity Report 2013
One and a half years ago (end of 2011), one of my open access publications (“Analyzing the Contributor Activity of a Volunteered Geographic Information Project — The Case of OpenStreetMap”) was published. I thought it was time to update this information with some new statistics. Between the end of 2011 and July 2013 the number…
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The State of the Map. United States. Street Network. 2013
Last year we wrote a journal paper in which we analyzed the OpenStreetMap (OSM) dataset of the United States which was published on May 28th, 2013 in the Transactions in GIS Journal. You can download a free pre-print version here. This paper has been published just on time to add to the discussion at the…
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I Like OpenStreetMap (OpenLayers Plugin)
A few months ago, Frederik Ramm posted an idea on the German OpenStreetMap mailing list about a new (stochastic) approach to OSM data quality assurance. His idea was to create a way to allow users to “like” or “dislike” a specific region on the OSM map …
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Where are the new OpenStreetMap Contributors?
Since past Friday the OpenStreetMap project has more than 600 000 registered members. As many of you may know, not every new registered member starts contributing to the project right away. Based on my “How did you contribute to OSM?” database I created a small (but neat) webpage …
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Which country has the most OpenStreetMap GPS Points?
Some of you might already know that OpenStreetMap released a first bulk GPS point dataset last week. It contains almost 2.8 milliard (or for readers in the US 2.8 billion) points and is provided in its raw format …
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OpenStreetMap in Germany (2007-2011)
Due to some requests by some German OpenStreetMap contributors, here a German blogpost about the results of the article: “The Street Network Evolution of Crowdsourced Maps: OpenStreetMap in Germany 2007–2011.” …