[OSM-talk] stop deleting abandoned railroads

Phil! Gold phil_g at pobox.com
Fri Aug 28 15:53:27 UTC 2015

* Martin Koppenhoefer <dieterdreist at gmail.com> [2015-08-21 09:22 +0200]:
> railway=dismantled means there is no railway currently but there are clear traces / remains of a railway (because if there weren't we would not put it in Osm).

Just for clarity:

railway=abandoned (per the wiki and my understanding of things) is for
when there remain traces of a railway whose rails are no longer present.
railway=dismantled (and its synonym, railway=razed) was introduced to
cover the case where people wanted to tag the path of a former railway
where no traces of the railway remain (e.g. because the area was
completely leveled to may way for a subdivision or mall).  (Reasons for
using railway=dismantled usually amount to, "The railway=abandoned traces
on either side of the leveled area make the former presence of a railway a
ground truth (because you wouldn't just have a gap in a railway) so the
railway=dismantled way bridges that gap in the OSM database.")

...computer contrarian of the first order... / http://aperiodic.net/phil/
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