[Tagging] noexit=yes on ways ? (a typical OSM story)

Pieren pieren3 at gmail.com
Fri Apr 11 09:50:47 UTC 2014


On Thu, Apr 10, 2014 at 6:08 PM, André Pirard <A.Pirard.Papou at gmail.com>wrote:


> What, in tagging a way, indicates on which end of it is the dead end?  (I
> asked that already).
>

omg, all "ends" (last node) not connected to another highway are surely
dead ends when the tag is present :-))
(and the tag is confirming that we are not a "mapping to be continued"
case)


> What does happen when the way is split or unsplit?
>

Well, if the tag is present when both ends are connected (e.g. after a
split), then it's a bit strange but it's not harmful. Routers ignore this
tag anyway. And QA tools are only checking the case where the last node is
not connected (and nearby another highway).


> Will a normal contributor understand what he's dealing with if he sees
> noexit on what he splits?
>

I think most of the contributors should not care about this tag. Only
people using QA tools supporting the tag for false positive would really
use it (like OSMI, routing view). But if the average contributor use it in
their cul-de-sac, why not. He's just informing next contributors that "it's
not an incompleted highway but really a cul-de-sac".


> In fact, is it "the way" or is it "the highway"? Just a segment or more
> and up to where?
>

It's all about highway ways. (If it's connected to a building way, you
could add a "building=entrance" on the connection node I guess)

Pieren
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