[Tagging] Planning route in the shade during hikes either in urban areas or forests

[Warin]

This tag has very little use! I don't think it has any discussion here.
Not something I would map as 'shade' varies for most things with the 
position of the sun (as you point out), and the position of the sun 
varies with the season. And then there is shading from the moon!

Suggest you contact the creator of that page and ask them. Hopefully 
this tag will disappear through little to no use and the conundrum of 
making sense of it.


On 4/7/21 4:00 pm, bkil wrote:
> How would you specify the kind of shade, like whether it comes from a
> man_made feature or foliage (tree or hedge)? Should it be combined
> with seasonal=* for deciduous plants?
>
> What is the criterion with regard to time of day, like if due to the
> angle of the sun, it only provides shade between 11:00-13:00 (the most
> important time), before noon or in the afternoon? It can also come
> handy to know whether the pavement will still be burning to your dog
> if shade only reaches the highway during the afternoon.
>
> https://wiki.openstreetmap.org/wiki/Talk:Key:shade#type_of_shade
> https://wiki.openstreetmap.org/wiki/Proposed_features/Shade
>
> As an alternative, it would be possible to map each and every tree and
> hedge, along with its taxon, height and crown_diameter, each fence
> with fence_type and each building and other structure in 3D, each
> sidewalk with exact material and geometry and compute shading based on
> that, but this sounds like much more work and it is implausible in
> most parts of the world in the foreseeable future (and not required
> for solving the problem at hand to a given approximation anyway).
>
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