[Tagging] Tram tracks running in a road
Luca Sigfrido Percich
luca.percich at gmail.com
Fri Feb 6 18:44:30 UTC 2015
Many thanks Jo!
Volker also suggests that I should see how things are mapped in other major
cities, and so I'll do.
So you confirm that there isn't an established way of expressing the
The use of the street relation has been suggested by a fellow member of the
italian discussion group. It's not clear from the wiki, however, if this
relation can be used for associating railways to highways for a single road
segment (from crossroads to crossroads) or is meant for associating
everything which belongs to a single street (so all the railways and
highways which belong to the same street).
I'll investigate further.
2015-02-06 19:26 GMT+01:00 Jo <winfixit at gmail.com>:
> Ciao Luca,
> For an example of a road with many variations in how the tram tracks are
> embedded, you can have a look at this stretch I mapped a few months ago:
> To indicate how they belong together, maybe a street or associatedStreet
> relation makes sense?
> 2015-02-06 17:29 GMT+01:00 Luca Sigfrido Percich <luca.percich at gmail.com>:
>> Hi all,
>> first time I write to the list (after lurking for a while), so I
>> introduce myself. I am from Milano - Italy, I work for the municipality's
>> agency for environment and mobility, and we'we been working for the last
>> months to integrate our road graph with OSM.
>> Currently in Milano all tram tracks are mapped separately, so they are
>> all oneway and no way has both highway=* and railway=tram tags (apart from
>> some cases we're correcting).
>> Now, we would like to store the information wether a certain railway
>> track runs in a road sharing the same space with motor vehicles.
>> I am referring to situations similar to this one:
>> Which is here on the map:
>> I searched the wiki for a tagging or relation scheme, but found none.
>> I was thinking about a simple tagging scheme: tram=yes|forward|backward
>> for the highway, and road=yes for the railway.
>> From the previous example (the picture points at the opposite direction
>> of the highway on which it was taken:
>> For the center way (road):
>> tram=yes (it's on both directions)
>> and on the two railways:
>> road=yes (the track lies on a road used by motor vehicles)
>> We could also user a lanes modifier:
>> The tram tag should not be used for tracks which run separated from the
>> road (they are tagged with railway=tram).
>> The tram tag should go along with access tags, as we have lanes reserved
>> for trams and buses/taxis:
>> So the center way (carriageway reserved to psv with two tram tracks in
>> shared space) would get tagged as:
>> We could also think about a relation, type=tram_on_road, it could be
>> useful for sorting things out in complex multi-carriageway situations like
>> this one:
>> but would also be more difficult for users to mantain and for clients to
>> Any suggestions / impressions?
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