Really great news for all our non-European OpenStreetMap.org Mappers: Since last month, the OSM Routing View is available for the whole world. You can read more in Frederik’s blog post. Yesterday he sent me the latest results of the view and I did some analysis with it. To all new readers: you can find more information about the OSM Inspector (OSMI) here. The Routing View within the OSMI “shows problems in the data, related to routing and navigation” (direct link).

However, here are the new *worldwide* stats for November 2011: we have a total of about 1,3 Mio errors. We can divide them into the following groups:

• Unconnected 1 meter: 248000
• Unconnected 2 meter: 62000
• Unconnected 5 meter: 170000
• Duplicate (number of duplicate segments): 833000

The following diagram shows the amount of errors per continent:

In the following charts you can see the amount of errors separated by country and the amount of errors in detail per country for “Europe”:

*NEW*: All other non-European countries with more then 5000 errors are listed in the following chart:

The “big three” countries with the highest amount of errors are in the last chart:

As you can see it in the charts, especially the United States need a lot of work. Furthermore it seems that in Ethiopia something went wrong. Was there any data-import or something similar? Frederik does not have a sponsor for running this routing view world-wide on a daily basis right now, so please contact him if you would support us! The last Routing View blog post is online here.

thx @ *Fab*

Short update with new statistics for the “Routing View EU“. Overall the following amount of errors appears for “Europe” at the middle of December 2010:

• Unconnected Roads: ca. 112600
• Duplicate Ways (number of duplicate segments): ca. 139000
• read more about the error-types here

This means that altogether there are 5100 new unconnected streets and 20000 duplicate way segment errors have been fixed (last month we had 107500 unconnected roads and 160000 duplicate way errors). In total we have an increment of 1300000 (+4.6%) new OSM way segments for routing in the past 5 weeks in “Europe” (this is nearly twice the number in comparison to one month ago)!

The following image shows the amount of errors divided by country for today’s Europe dataset:

In the past month several other countries were able to reduce the amount of errors, such as in: Austria (-3200), France (-4400), Italy (-2100), Portugal (-1200), Sweden (-2000), Switzerland (-4828 !!) and the United Kingdom (-3700). So I think the award for this month goes to Switzerland 🙂 . Germany keeps going on with its negative trend: A gain of about 2700 errors! It seems like the German OSM community is primarly tracing from Bing-imagerys, doesn´t it?

In the following diagram the bars for each country shows the total amount of errors for 1m, 2m, 5m unconnected & duplicate way segments:

As usual for Germany, the comparison of federal states (includes the error type “Unconnected 1m”):

(Nearly all federal states have a positive value regarding the amount of errors, except Rheinland-Pfalz, Sachsen, Schleswig-Holstein & Hamburg)

This was my last blog post for this year, so Merry Christmas and a Happy New Year 2011!
Bye for now …

The OSMI Routing View for entire Europe is available for two weeks now. I try to create the stats for the view once a month as I did before. For all readers that are not familiar with the Routing View, you can find some information about it here:

• OSM Inspector (OSMI) – http://wiki.openstreetmap.org/wiki/Osmi
• OSMI Routing View – http://wiki.osm.org/…/Views/Routing
• Direct link – http://tools.geofabrik.de/osmi/?view=routing

Over all (according to the Geofabrik extract) the following amount of errors appear for the area of Europe at the moment:

• Unconnected Roads: ca. 111000
• Duplicate Ways (number of duplicate segments): ca. 213000

The following image shows the amount of errors divided by country. :

Here is another diagram of the “Top” six countries (with more than 10k errors):

It’s important to mention though that the German Routing View is available for half a year now! The total number of errors was over 50000 in Germany at the beginning too.

So I’m excited to see which country will be able to correct a noticeable number of errors first! It will be interesting to see the new numbers next month … Germany has done a good start 🙂

In the past I always created a federal state comparison for Germany that included the error type “Unconnected 1m”, I think we should keep that up?!

In North Rhine-Westphalia and Hessen bigger changes have been made 🙂
Only Bavaria does not show a lot of improvement 🙁

Hi, seit etwas mehr als zwei Monaten ist der Routing View im OpenStreetMap Inspector online. Dabei zeigt der View Probleme in den OSM Daten, die für Routing und Navigation relevant sind. In den beiden letzten Monaten hatte ich bereits Statistiken über die Deutsche OSM Maillingliste gesendet. Die Mail von März findet ihr hier und die Mail mit den Statistiken im April findet ihr hier. Die nun folgenden Statistiken beziehen sich auf den Zeitraum vom 05.04.2010 bis 10.05.2010. Die Abdeckung des Views ist Deutschland, gemäß des Extrakts der Geofabrik. Der OSM Inspector mit den Routing View kann über folgenden Link aufgerufen werden.

Zu erst ein paar allgemeine Zahlen zum OSMI Routing View (Stand 10.05.2010)
– Gesamtanzahl der OSM Way-Segmente in DE: 7.499.150
– Gesamtanzahl der Problem im OSMI-Routing-View: 36.126
– Anzahl der Probleme im unconnected-Layer: 17.558
– Anzahl der Probleme im duplicate-Layer: 18.538

Statistiken für die Änderungen im Routing View
– Gesamtzuwachs an Way-Segmenten für Routing: +292.969
(Durchschnittlich pro Tag: +8.371 ; Min: +4.888 ; Max: +13.485)
– Differenz in der Gesamtanzahl der Probleme: -2.514
(Durchschnittlich pro Tag: -73 ; Min: +1.066 ; Max: -942)
– Differenz in der Anzahl der Probleme (unconnected): -1.722
(Durchschnittlich pro Tag: -53 ; Min: +160 ; Max: -232)
– Differenz in der Anzahl der Probleme (duplicate): -822
(Durchschnittlich pro Tag: -23 ; Min: +902 ; Max: -626)

Ein ‘+’ bedeutet es wurden an einem Tag kein Problem beseitigt, sondern es kamen nur Neue dazu! Im folgenden Diagramm sind die Anzahl der Fehler für “nicht verbundene Straße 1m” für jedes Bundesland zu sehen. In Nordrhein-Westfalen oder RLP haben sich die Anzahl der Fehler anscheinend nicht verändert oder sind im Gegenteil sogar noch größere geworden 🙁

Dass es auch anders geht zeigen die Mapper aus Thüringen und Baden-Württemberg. In Thüringen wurden 226 Fehler behoben und somit verbleiben dort nur noch 5 Fehler in der “1m”-Kategorie, TOP! Auch die Mapper aus Baden-Württemberg waren aktiv und konnten die Anzahl von 688 auf 196 verringen (-492), ebenfalls gut :o) Wie letzten Monat würde es mal Zeit werden, dass jemand aus den anderen “großen” Bundesländern aktiv werden würde, oder? ;o)