As a related question to Does the name tag make sense for a tram track?:

Is it a good idea at all to use name=* and especially ref=* on tram tracks?

Usually (at least in Germany where I live) tram tracks themselves do not have names or numbers -- only the tram lines which run over them do. People don't say "that is the tram track 632", they say "tram 632 runs there".

At present the wiki for railway=tram recommends to use name=/ref= for the line name/reference.

It seems to me that name (if applicable) and number of a tram line are better mapped using the relation "route" (see Relation:route).

  • It is the established mechanism for mapping public transport lines (I believe)
  • It makes it easier to find the complete extent of a line - if you use name=* on the track, software must piece together all tracks with the same name to find the line (and what about misspelled names?)
  • There may be two different lines with the same name (e.g. in neighbouring cities); these can only be kept distinct using relations
  • Commonly more than one line runs on a single track - there's no way to tag this using name=*/ref=*.

So wouldn't it be better to change the wiki so it discourages use of name=*/ref=* for tram tracks, and recommends relations instead?

Of course, if a certain track itself is known by a name, that would be ok to tag as such.

Proposed wording:

To tag which tram lines run over the tag, use a Relation:route.

name=* and ref=* should only be used if the track itself has a name or a designation, independent of the tram lines running over it (which is relatively uncommon, at least in most parts of Europe).

This question is marked "community wiki".

asked 29 Jan '11, 16:16

sleske's gravatar image

sleske
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accept rate: 25%

edited 29 Jan '11, 16:19

Don't forget to accept an answer (the round checkmark button).

(10 Mar '11, 16:58) Paul Johnson

I would use the ref= tag to indicate which track in a multi-track set if the track number is known, not for the route that travels on that track. If the properties apply to the physical way, it belongs on the way. If it's a route, it belongs in a relation. The only widely accepted exception to this is ref= tags on highways to indicate route numbers, largely due to early limitations.

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answered 25 Feb '11, 20:13

Paul%20Johnson's gravatar image

Paul Johnson
2.9k143056
accept rate: 10%

Why some people argue so vehemently against fixing the highway ref= problem is beyond my comprehension...

(25 Feb '11, 20:13) Paul Johnson
-2

This help board is meant for "how do I ..." style questions not for discussions on policy. Please use the mailing lists for that and document the arguments on the corresponding wiki talk page.

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answered 29 Jan '11, 16:28

petschge's gravatar image

petschge
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accept rate: 21%

This rather surprises me. The FAQ just says "questions should be relevant to this community. So they should be about OpenStreetMap and using OpenStreetMap data." - no mention about "how to" versus "policy". At any rate, I didn't want to start a discussion, I'm just asking whether there is a consensus.

(29 Jan '11, 16:54) sleske
1

If you feel questions about policy are inappropriate here, maybe you could update the FAQ? Otherwise people will be frustrated because they put effort into asking questions here, only to have them shot down.

(29 Jan '11, 16:55) sleske

Questions about existing policies are fine. Discussions about new policies or changes to exisiting ones are the problem. They don't have a short and clear answer and will lead to longwinded thread that this help board is not suited for.

(25 Feb '11, 10:52) petschge
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question asked: 29 Jan '11, 16:16

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last updated: 10 Mar '11, 16:58

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