Two years and a couple of months back I started running daily street name completeness checks for Switzerland. See my original article for more information, information on the changes for 2014 (this article points out some of the quality issues with the GWR) and http://qa.poole.ch/ch-roads/ for the daily updates.
On the 12th of March we passed the 100’000 street name mark implying that in 27 months we have added nearly 40’000 names that were previously missing or unverified, leaving roughly 20’000 to go.
| GWR 2014-12-01* | OSM 2012-11-01 | OSM 2013-12-27 | OSM 2015-03-12 | % | |
|---|---|---|---|---|---|
| Roads | 121’041 | 62’258 | 87’759 | 100’012 | 83% |
| Other | 63’673 | 14’101 | 8’598 | 12’465 | 20% |
* the GWR values are corrected for the issues discussed in the December 2013 blog post and are not the raw numbers. This is the reason for the decrease in numbers of non-road objects.
Naturally I do not expect to reach the 100% mark any time soon. There is quite a high number of municipalities that do not sign post their roads, making independent verification very difficult to impossible (this is not the same as not having street names in the first place which is not a problem) and naturally these places don’t tend to be where hot spots of OSM contributors are. On the other hand there is still a lot of very low hanging fruit which simply needs verification. Low hanging in this case means that the roads in question can already be found in OSM, but there are simply spelling differences that we need to investigate (see the original article on how to handle differences between the GWR and reality).
Please don’t forget the 2015 SOSM Donation Drive to enable us to continue to operate this and other services.
March 2015
December 2013
January 2013
