[Talk-GB] Parish Councils needs

[Edward Bainton]

(copying the list in again)

Thank you. My understanding is that this parish council has had *all*
street assets devolved to it: see here
<https://cms.wiltshire.gov.uk/documents/s135418/Service%20Devolution%20and%20Asset%20Transfer%20Cabinet%20Report.pdf>
.

The answer to *length* is yes, Overpass can do that
<https://wiki.openstreetmap.org/wiki/Overpass_API/Overpass_QL#Geometry_Related_Operators>
- so roads are sorted.

*area* may be too complex though?
There is an "operator"  geom()  which might do it? (These words are all new
to me... the wiki doesn't say what it does.)

If Overpass can't do area of grass directly, could an approximation be made
using the lengths of the ways bounding grassed areas, whatever their 2D
extent, by assuming some kind of bell-curve of maximal/minimal
area-for-length ratio?

This may be getting OT for this list: my reason for bringing it to GB is
that this query is from someone working closely with parish councils, who's
trying to get them to use OSM as their GSI - so hoping others have good
ideas about how to invest them.

On Fri, 25 Oct 2019 at 12:34, Philip Barnes <phil at trigpoint.me.uk> wrote:

>
> On Friday, 25 October 2019, Edward Bainton wrote:
> > A follow-up to my earlier, narrower query (subject line now changed)
> >
> > Can Overpass measure the length of roads?
> >
> > Eg, if a parish council wants to know how many miles of roads it has to
> > sweep. (Assume filtering by road type is possible to exclude driveways,
> > etc; assume all roads their responsibility.)
> >
> > What about area of grass to cut? (add together all parks, football
> pitches,
> > etc - assume tagged *operator=Footon Parish Council*).
> >
> I think the key you would need is certainly the opator tag although I am
> no expert at this level of complexity.
>
> One area of operator responsibility that does interest me is the operator
> of street lighting.
>
> Some streets in my town are lit by the county council, others are lit by
> the town council. Whilst I have seen the data, it is not in a usable source.
>
> I could guess based on where the lights go out at midnight, but there are
> areas such as the town centre where they remain on for safety reasons
>
> Phil (trigpoint)
> --
> Sent from my Sailfish device
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