[Tagging] Waterway equivalent of noexit=yes?

Tod Fitch tod at fitchfamily.org
Wed Aug 12 17:33:55 UTC 2020

Not yet mapped, but my prototype case can be seen in the Bing Imagery with an area that collect water around 33.99268,-116.22239 and flows generally to the east and north only to dissipate around 33.06076,-116.06077. The collection area is no problem nor is the ephemeral waterway until about 33.03910,-116.099138 where it start bifurcating into smaller and smaller channels which eventually disappear.


> On Aug 12, 2020, at 10:03 AM, Joseph Eisenberg <joseph.eisenberg at gmail.com> wrote:
> Would waterway=spreads only be used for intermittent streams/rivers where the waterway spreads out and evaporates on the surface?
> If the water appears to sink into sand, gravel or fractured karst rock, would we want a different tag instead, e.g. waterway=sink?
> I understand that natural=cave_entrance can also be used when a waterway drops into a sinkhole or other open cave entrance, often found in limestone (karst) geology areas.
> -- Joseph Eisenberg
> On Wed, Aug 12, 2020 at 9:52 AM Paul Allen <pla16021 at gmail.com <mailto:pla16021 at gmail.com>> wrote:
> On Wed, 12 Aug 2020 at 17:07, Tod Fitch <tod at fitchfamily.org <mailto:tod at fitchfamily.org>> wrote:
> To clarify it for me, the a “waterway=spread” tag would be used on a node (rendered possibly as an asterisk) or on a way? Or either depending the situation?
> I'd say "spreads" rather than "spread" because that's the term OS uses.  I've only
> ever seen OS use it on the terminal node of a waterway.  More of a crow's-foot
> symbol than an asterisk, usually, but an asterisk works.  I have no idea how
> you'd render it sensibly on a way.  I assume you're thinking of something like a
> very sandy river bed where the water sometimes gets further than other times,
> depending on conditions.  I'd be happy enough with a single node, because
> that's better than we have now.  If you can justify applying it to a way and
> think there's a need then do so, but if you're just trying to keep QA tools
> happy...
> --
> Paul
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