[Tagging] Tram tracks running in a road
winfixit at gmail.com
Mon Feb 9 18:10:49 UTC 2015
As I said before, it's simply a model. We have always drawn 1 way for each
stretch of asphalt. We also draw 1 way per track. They sometimes overlap,
but it turns out that this doesn't happen all that often.
Maybe this is the reason why they decided to draw rails instead of tracks
in the UrbIS dataset. But that's a different model. Probably makes more
sense in a GIS system.
2015-02-09 18:56 GMT+01:00 Markus Lindholm <markus.lindholm at gmail.com>:
> On 9 February 2015 at 12:58, Martin Koppenhoefer <dieterdreist at gmail.com>
> > 2015-02-09 8:29 GMT+01:00 Markus Lindholm <markus.lindholm at gmail.com>:
> >> The road isn't between the tracks.
> > you could understand this by looking at the width of the road.
> Doesn't seem to be an ideal solution to draw the objects in a way that
> differs from ground truth and trying to use tags to convey that they
> actually on top of each other.
> > Having highway and railway tags on the same object might also
> > lead to other problems: you won't always know which tag / attribute
> > to which entity, or in other words it will only work if all properties of
> > the railway and the highway are the same, e.g. oneway, width, surface.
> Not really a problem as you could always qualify the tag if there's a
> risk of ambiguity.
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