[Tagging] noexit=yes wiki page update

[André Pirard]

High,

During the discussion of this tag, it was said that a sure culprit for
incorrect noexit=yes tags, is a misleading phrasing
> Use the noexit=yes tag at the end of a highway
> <http://wiki.openstreetmap.org/wiki/Key:highway>=* to indicate that
> there is no possibility to travel further by any transport mode along
> a formal path or route.
and that, this sentence being the first one, they read just that and
ignore the warnings and tag noexit=yes on any dead end as said.

Hence, it was decided to put the warnings first and to rewrite that
phrase in a more precise way:
> Use the *noexit*=yes tag on the node Node
> <http://wiki.openstreetmap.org/wiki/Elements#Node> at the end of a
> highway <http://wiki.openstreetmap.org/wiki/Key:highway>=* to indicate
> when doubtful that the impossibility to travel further by any
> transport mode is perfectly normal, due to otherwise existing road
> layout. 

Without any warning, Floscher
<http://wiki.openstreetmap.org/wiki/User:Floscher>  put the misleading
sentence back to the beginning, duplicating the correct version below.
So, I removed that phrase to conform to the decision to explain that tag
correctly instead of misleadingly.

He restored the icons that I had restored myself to "node only" but that
Pieren had set to "node+way".

He also removed my sort of "acknowledgement" that noexit=yes is
effectively being tagged on ways and which was the right place to say
that it must *not* be done. I don't mind that removal at all, but you
should bulk erase the noexit=yes tags on ways and explicitly say that
they must not come back.
When I see that first phrase, that the "When *not* to use" § does not
mention "on ways" but on waterways and railways and that "Rendering"
says "When tagged on a node..." I wonder if all those gotchas are not
made on purpose.

Well, I finally put this at the beginning:
> Read important warnings first, then read tag syntax in paragraph *Usage*.
>
> Do not use this tag on ways (only on nodes).
>
There's little excuses any more.

Last thing: many people believe that road signs (and other funny things)
are used by router software (and this is not encouraging at all to
believe in OSM GPSes). They want to, and do, tag the dead-end road sign
whose icon German dead-end sign
<http://wiki.openstreetmap.org/wiki/File:Zeichen_357.svg> is used by
this page to render the other road end. Expect that icon to pop up at
both ends of the ways for added fun one of these days ;-)

See you at the next noexit=yes on ways discussion.

André.












 
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