On 08/09/2015 09:07, Martin Koppenhoefer wrote:
I believe you are oversimplifying things by just looking at the tracks and if
they are there it is some kind of railway and in absence of tracks it has
nothing more to do with railway.
First of all, we don't currently know a tag for a viaduct entity in OSM, we
only have a viaduct property for railway and highway entities (bridge=viaduct)
to denote that they are on a viaduct.
man_made=bridge
bridge=*
The above is meant to be the way to describe bridges with no current
use. The latest version of Mapnik should render it but there appears to
be something wrong atm.
Even if we "had" an established way to tag viaducts independently from ways
running over them, we would still likely want to tag whether the viaduct was built for
roads or for railway.
Something like an historical sub tag for the above example
man_made=bridge
bridge=*
historical=railway
IMHO railway=abandoned fits into this idea, and solves these issues.
Not really. There is no railway.
Before continuing this discussion we should define the possible states we want
to map/recognize, i.e. disused, abandoned, (dismantled, razed) and agree on
their meaning.
People continue to write about railway=abandoned as if it described former
railways with no traces whatsoever left, while to others it means traces are
left.
I think it been clearly stated many times
Cheers
Dave F.
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