[OSM-talk] [Talk-us] Finding untagged dead-ends

John Sturdy jcg.sturdy at gmail.com
Wed Feb 15 17:39:52 GMT 2012


On Wed, Feb 15, 2012 at 5:27 PM, Martijn van Exel <m at rtijn.org> wrote:

> I don't really see the value of a generic noexit=yes tag - it can and
> should be inferred from the network. But finding dead ends can be
> valuable for tagging the countless turning circles / cul-de-sacs that
> exist in post-war subdivisions in the US - like John mentioned.

After a bit more thought, I'm not even sure of the definition of a
dead end --- is a road that leads into a closed tree (or other graph)
of roads and dead end?  It does lead to other roads, but you can't get
out onto the wider road network without coming back along the same one
again.  For example, is
http://www.openstreetmap.org/browse/way/4678941 a dead end?

__John



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