[OSM-dev] Ways containing same nodes

[Anton Popov]

Thanks for you reply.

I've asked about the creation possibility, because there were 2 ways and
after some changeset has been commited, one way become overlapped by other.

Ok, I will merge these ways using JOSM.

On Wed, Jan 20, 2010 at 9:07 PM, Matthias Julius <lists at julius-net.net>wrote:

> Anton Popov <apopov at cloudmade.com> writes:
>
> > Hello everybody,
> >
> > I've found two ways in Germany, that has same nodes:
> > http://www.openstreetmap.org/browse/way/23735657
> > http://www.openstreetmap.org/browse/way/23735661
> >
> > I've examined the history & it seems that following changeset caused a
> > problem:
> > http://www.openstreetmap.org/browse/changeset/259367
> >
> > The main questions are How this could happen? and How to correct these
> ways?
>
> There are many possibilities: A bug in the uploading software, the
> user somehow duplicating the way, the user not saving his data after
> uploading, or - most likely - an aborted HTTP connection after the
> server received the data (either by the user hitting cancel or by a
> broken network connection).  The latter prevents the client from
> learning the IDs the server has assigned to new objects and on next
> upload it will re-upload the same objects again as new.
>
> >
> > As far as I can see correct way is 23735661 - the only missing tag is
> > "maxspeed" - am I right?
>
> If the ways really have the same nodes one can do Combine Ways (C) in
> JOSM and JOSM will merge all tags onto one way.  If they don't exactly
> overlap one can in JOSM select them both and all tags of both ways
> will be listed in the properties list with the tags that have
> different values displaying <different>.  Then one can edit those tags
> and the values that are actually used by one of the selected ways are
> shown in bold in the value drop-down.  Once all tag values are merged
> one can delete one way.
>
> Matthias
>
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>



-- 
Best regards,
Popov Anton.
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