[Tagging] Relations in Transport for London: network and operator

Martin Koppenhoefer dieterdreist at gmail.com
Thu Jul 14 12:06:40 UTC 2016

2016-07-14 12:53 GMT+02:00 Kieron Thwaites <kieron.thwaites at gmail.com>:

> Yes, it's two different tagging schemes.  "station=subway" belongs to
> the legacy station mapping scheme, while "subway=yes" belongs to the
> more detailed (and more complex) public transport schema, and is (or
> should be!) found together with a public_transport=stop_position tag.
> Note that both tagging schemes can coexist, so having both tagged is
> acceptable.  I recommend though that, for consistency reasons, you
> pick one (the newer public transport schema is, in my opinion, the
> better option) and stick with it.

Actually the station=subway tag is to distinguish the whole station from
other railbased stations (i.e. there's no relation to
public_transport=stop_position), in legacy tagging you add it to
railway=station. In the newer scheme I think you'd map it as
public_transport=station and subway=yes.
On a side note, the newer scheme can currently not be evaluated by the
carto-osm rendering stack (main map, missing keys in rendering db).

station=subway has clear semantics (it is denoting a subway station), while
subway=yes can be combined with different objects, e.g. platforms, stop
positions, stations etc.

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