[Talk-us] mapping job - unconnected _link roads

Martijn van Exel m at rtijn.org
Wed May 30 04:24:54 BST 2012


Hi,

I've been looking at unconnected _link roads (see here [1] for a
typical example) for the US, and found 1200 likely candidates. A
shapefile as well as an .osm file you can load in JOSM can be
downloaded here: http://lima.schaaltreinen.nl/osm/
The script I ran (on osmosis snapshot + linestring schema) is here:
https://github.com/mvexel/osm-gradesep/blob/unconnectedlinknodes/sql/09-missinglinknodes.sql
There are some false positives in there, but it looks like more than
90% of these nodes warrant inspection.
I ran this analysis on the last planet from before 1/4, so some of
this may already have been fixed.

[1] https://www.dropbox.com/s/85dqb7fm7whevxw/unconnectedlink.png
-- 
martijn van exel
http://oegeo.wordpress.com



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