[talk-au] Highway=path

[waldo000000 at gmail.com]

Sounds good to me David.


On Tue, Jun 3, 2014 at 9:42 AM, David Clark <dbclark at fastmail.com.au> wrote:

>   I probably should clarify, I'm really talking about paths that have
> been tagged highway=path without including any other tags. I'm sure with a
> bit of direction and encouragement people would include the surface="what
> ever it is" tag.
>
> If the mapper doesn't know the surface, then fair enough, leave it out.
> But I think more often than not the mapper probably would know at least
> enough to tag it "paved" or "dirt". It's a case of mapping what is
> physically there, a rocky, rooty bushwalking trail for example should be
> tagged differently to a concrete path that parents push a kiddies pram
> along.
>
> All the best,
> David
>
> ----- Original message -----
> From: David Clark <dbclark at fastmail.com.au>
> To: talk-au at openstreetmap.org
> Subject: [talk-au] Highway=path
> Date: Mon, 02 Jun 2014 09:45:55 +0930
>
>  I've been mapping stuff on OSM for a while but I've recently started
> doing my own rendering for gps. From this I've gained a new insight into
> the highway=path tag so am posting here.
>
> Firstly my focus is on tracks and trails so that is where I'm coming from.
>
> The basics of what I have noticed is that a lot ways are tagged
> highway=path with no other information. I have found this to be a difficult
> problem when it comes to rendering. The highway=path tag is a little
> different to the other highway tags. Firstly it covers quite a broad range
> of features for walking, cycling, horse riding. Secondly it has no default
> surface type. For example roads default is paved unless otherwise
> specified, highway=track defaults to unpaved. Highway=path doesn't have a
> default.
>
> Before messing around with rendering I would tag as highway=path and not
> bother too much with the other assortment of tags. Partly this is because
> there are heaps of tags that can be used and there was no particular
> direction on their priority or importance of use.
>
> For rendering I really need a surface tag included to separate the paths
> into practical catagories. Having no surface tag results in such a large
> mix of data that it becomes impractial to define any further. However if
> the surface=paved,dirt.. whatever is used the usefulness of the data is
> massively increased. For rendering I (and other examples of rendering I
> have seen) use the highway=path, surface=paved,dirt..etc tag to split the
> data into paths that are paved and paths that are not paved. This results
> in a practical ability to split surfaced paths (butumen, cement, pavers
> etc) and trails (gravel, dirt etc).
>
> I'd like to see the difference between:
>
> walking trails, dirt trails, single track etc.
> and
> paved paths, bitumen paths, concrete paths etc.
>
> And I'm sure I'm not alone in this.
>
> So in summary:
> highway=path is a unique tag because it covers a broader range of features
> than most tags.
> highway=path has no surface default like most other way tags do.
> adding the surface=paved,dirt,..,.. etc adds a much need qualifier for
> pratical rendering.
>
> My request:
>
> Firstly that people tagging paths consider adding the surface tag as well.
> You probably already know the surface (as I always did even though I didn't
> realise the significance of adding the tag) and if you're interested in
> paths your likely one of those most interested in having it rendered in a
> practical way.
>
> Secondly I think this is worth adding to the Australian Tagging Guidelines
> wiki in some form. ie "Please add the surface=paved,dirt,..,.. etc when
> tagging paths. Preferred minimum being paved or dirt."
>
> What do you think?
>
> All the best,
> David
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