[OSM-newbies] desert "streams"
rwtnospam-osm at yahoo.com
Thu Oct 15 21:47:44 BST 2009
Charlotte Wolter wrote:
> Here in the western US (and in many desert areas) we have a
> phenomenon known as an intermittent stream. Sometimes a major
> waterway, such as the LA river, will be bone dry most of the year,
> but turn into a torrent when it rains. The same is true for most
> smaller waterways. In addition, in urban areas these same
> "streams" often are encased in concrete walls to control them during
> those rare occasions when they are full. However, calling them
> "drains" isn't really what they are, so I've still used "stream."
> The USGS (US Geological Service) has a dotted and dashed line for
> intermittent streams. Do you think that's appropriate for OSM and
> should I propose it? I think it is applicable to many desert areas.
> Charlotte Wolter
> Charlotte Wolter
> 927 18th Street Apt. A
> Santa Monica, California
> techlady at techlady.com
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Check the proposed features wiki. (Click on User Defined in the last
waterway entry of Map Features.) A feature "intermittent=yes" was
proposed on 9/30 for waterways.
Situations similar to your descriptions appear here in Texas, and, in
fact, right behind my house is a "drain" that was originally a creek,
before the area was developed. In fact, two streams merged about 100ft
from my property, and there was a fresh water mussel bed there (now
long gone). I've coded it as a drain, because it is no longer natural
per the stream definition. In a way, you can think of a stream as being
a natural "drain", so I've decided I can live with "drain" now that
it's all concrete. But, I don't see why we have to be consistent on
that use, as long as it isn't navagable.
Reading the main talk (as opposed to Newbie), it seems that the process
is moving away from the "formal" Draft/RFC/Vote process, so I'd say go
ahead and start using "waterway=river/stream/drain, intermittent=yes",
since it has already been put out there.
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