[Tagging] Waterway direction

[Anthony]

On Wed, Sep 1, 2010 at 3:14 PM, M∡rtin Koppenhoefer
<dieterdreist at gmail.com> wrote:
> 2010/9/1 Anthony <osm at inbox.org>:
>> On Wed, Sep 1, 2010 at 3:03 PM, M∡rtin Koppenhoefer
>> <dieterdreist at gmail.com> wrote:
>
>>>> Ah, I see.  But that wouldn't be tagged as a waterway, would it?
>>>
>>> Why shouldn't it?
>>
>> Because it's not navigable, therefore it's not a waterway.  And
>> because the wiki says to use tunnel=culvert, not waterway=culvert.
>
>
> neither is a ditch, a drain, a weir, ...
>
> http://wiki.openstreetmap.org/wiki/Waterway

I guess not.  And that should possibly be fixed.  But if you're going
to go with that wiki page rather than the common definition, culverts
still aren't waterways.  They're "waterway-related features".  All the
examples of waterways on that wiki page are open.  A culvert is more
like man_made=pipeline, type=drain.

In any case, as I said, there's no reason the default has to be the
same for *all* waterways.