[Talk-us] Proposed cleanup: NHD "rivers"

Paul Norman penorman at mac.com
Mon Mar 21 01:52:19 GMT 2011

This is the view I subscribe to too. An example of two ways I would want to
join would be http://www.openstreetmap.org/browse/way/68711710 and
These differ only in nhd:com_id and they're both really short ways.

In any case, I'd like to make it clear that there are two separate parts.
The retagging of the ways, and the joining of them. The first one is a
serious issue, visible out to z8 in the rendering and hopefully
uncontroversial to change. The second one is a less important issue that it
seems more debate is required on.

For the retagging, I've done up a table at
http://wiki.openstreetmap.org/wiki/User:Pnorman/NHDCleanup which explains
the changes I'm proposing. I should of thought of a table earlier

Also, I need to empathize that any data edited by users since the imports
won't be touched without manual review.

> -----Original Message-----
> From: Richard Welty [mailto:rwelty at averillpark.net]
> Sent: Sunday, March 20, 2011 5:38 PM
> To: talk-us at openstreetmap.org
> Subject: Re: [Talk-us] Proposed cleanup: NHD "rivers"
> On 3/20/11 8:16 PM, Nathan Edgars II wrote:
> > On 3/20/2011 8:13 PM, Richard Welty wrote:
> >> d suggest using relations to group ways that are parts of named
> >> rivers rather than trying to combine the ways.
> >
> > If the only difference between the ways is that NHD assigns a
> > different ID number to them, not combining them seems silly.
> if the ids are consistent from one release to the next and there is any
> notion of doing an update later, then combining them destroys useful
> information.
> richard
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