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

Bjoern Hassler bjohas+mw at gmail.com
Thu Jul 14 12:40:13 UTC 2016

Hi all,

thanks for comments. Makes me think about validation. Is there a validator
that can be used to compare the accepted schemes to what the actual tagging
is? For example, is it possible to validate against manually constructed
schemes in JOSM? Is it possible to view osmose errors on certain objects


On 14 July 2016 at 13:06, Martin Koppenhoefer <dieterdreist at gmail.com>

> 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.
> Cheers,
> Martin
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