[OSM-talk] Nature Trails (was: No_comments=yes)

[Andy Robinson]

Frederik Ramm wrote:
>Sent: 07 February 2007 11:40 AM
>To: talk at openstreetmap.org
>Subject: Re: [OSM-talk] Nature Trails (was: No_comments=yes)
>
>Ben,
>
>> I have one additional question, but I'll skim over it casue I
>> dought there
>> will be a responce.  Trails.  In a wood or where ever there is nature
>> trails.*  Has anyone done these?  I considered (route_ref=xyz,
>> colour=red)
>> for example.  There is rendering problems with this though, but I
>> won't
>> bother listing them.  If no responce then I shall custom tag, but
>> this will
>> be a problem at some future point.
>>
>> *nature trails not being just footpaths.  But usually suggested
>> circular
>> walks.
>
>I think that' s a general problem we have, and I don't have a
>solution for it.
>
>A nature trail will usually be a combination of ways. It may,
>sometimes, even contain a little bit of secondary road. So it is not
>a "way" in our sense, and it does not manifest itself on the ground -
>you cannot look at a way and say "oh yes, this must be a nature
>trail". It's more of a logical concept that uses existing ways.
>
>It's as if you were to map the Jubilee Walk in London, or the "London
>to Edinburgh Rail Service". It's all valuable information, but it is
>not something that can reasonably be expressed in an attribute to a
>way. I cannot go and tag every street in London forming part of the
>Jubilee Walk with "jubilee_walk=yes" (to reference your other
>ailment...).
>
>In the long run, we will probably need something like a "superway"
>that can combine multiple ways to form something like a nature trail.
>
>For the time being, I'd recommend using the "annotation" tag with the
>value "Blah Blah Nature Trail".
>

These should all come under "route" in Map Features, that was what "route"
was in there for in the first place. To apply it you would add the route key
and any necessary value to the relevant ways. Where only part of a way is in
use for the route then there are two choices. Either split the original way
and add the route tag to the relevant section or create a new way (just with
the route tag) from the relevant segments.

I've used this approach for National Cycle Network tagging and the like.

These trails are similar to bus routes. They are a designated route from
point to point but do not normally relate in any way to the physical or
administrative designations of the highways involved.

Cheers

Andy


Andy Robinson
Andy_J_Robinson at blueyonder.co.uk

>Bye
>Frederik
>
>--
>Frederik Ramm  ##  eMail frederik at remote.org  ##  N49°00.09' E008°23.33'
>
>
>
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