[Tagging] New tag proposal: 'add=milestone'

[Martin Koppenhoefer]

Am Mi., 9. Okt. 2019 um 15:11 Uhr schrieb Paul Allen <pla16021 at gmail.com>:

> ...some mad king throwing darts at a map: if it looks like a house number,
> is treated like a house
> number, and appears on the house/gate/whatever as a house number, then
> it's a house number.
> House numbers don't have to be sequential or monotonic, I can think of a
> couple of roads in my
> town where the house numbers are counter-intuitive.  So it doesn't matter
> if those house numbers
> were assigned based on a distance along a road, and that subsequent road
> remodelling has
> resulted in them all being inaccurate without a milepost equation: if it
> quacks like a house
> number then it's a house number.
>


there is some sense in understanding the system (if there is), e.g. if not
all numbers are recorded it allows you to estimate where the one you are
looking for might be, how far it possibly is etc.. This is a typical use
case: you have an address and are looking for it on the ground.



> If they're not house numbers marked somewhere on the property, and if
> there are sometimes
> (as the OP has stated) missing markers, and if road remodelling has
> rendered the distances
> incorrect, then what good is addr:road_marker in those particular
> circumstances?
>
> It appears addr:road_marker is only really applicable where all of the
> following apply:
>
> 1: The number is not marked on the property (otherwise it's a house
> number, however
> derived).
>


there could be 2 numbers, a distance based on and a recently assigned,
actual housenumber.
You could also be interested in comparing an official register to the OSM
data, e.g. to find missing spots, check for completeness etc.



>
>
> 3) Road markers have not been recalibrated following extensive road
> remodelling.
>
>

good luck with this. In regions with lacking housenumbers I wouldn't put
too much confidence in the road markers...

Cheers
Martin
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.openstreetmap.org/pipermail/tagging/attachments/20191009/c8fbdb0a/attachment.html>