[Talk-GB] Southwark update

[Tom Chance]

On 3 March 2011 16:34, Jerry Clough : SK53 on OSM <SK53_osm at yahoo.co.uk>wrote:

> I find this an exciting development: a place where I can point to and put
> pressure on other councils to make their tree databases available. My
> particular interests lie with good specimen trees and relatively unusual
> ones which are hosts to particular insects (e.g., Gleditsia, Holm Oak).
>

I'm glad others find it useful! If someone could attend to the Mapnik bug (
http://trac.openstreetmap.org/ticket/3511) I'd happily import the remaining
data so people can fix errors and play with it.



> 1) Overlaying individual trees on an existing closed way showing woodland
> (see Peckham Rye Park).
>

This is really me naughtily tagging for the renderer. Zoom out and the
natural=tree disappear, but the natural=wood doesn't. Many stylesheets omit
trees. I've used the natural=wood area to cover the largeish area that is
covered by fairly dense trees rather than odd isolated ones or spaced out
rows.


>
> 2) Tagging the botanical name. There is little point in pushing individual
> trees into OSM without this. There are three (perhaps more) schemes :
> name:botanical=*, species=* and taxon=*, each with various merits and
> demerits.
>

Interesting, I just went with the schema on the wiki:
http://wiki.openstreetmap.org/wiki/Tag:natural%3Dtree

On getting other councils to release data, you may find a report due to be
published soon by the London Assembly Environment Committee interesting.
Darren Johnson, a Green member, chairs the committee that has tried to
update a previous report on the state of London's trees. We've had all sorts
of fun and games getting data on totals out of borough tree officers. Some
of the key recommendations address releasing open data on trees and getting
better at maintaining it.

Tom

-- 
http://tom.acrewoods.net   http://twitter.com/tom_chance
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