On 2/6/20 11:52 am, Phake Nick wrote:
在 2020年6月2日週二 09:26，Warin <[email protected]
<mailto:[email protected]>> 寫道：
On 30/5/20 12:48 am, Volker Schmidt wrote:
> My main point is that out there are things that consist of visible
> objects plus objects which have left visible traces, and also some
> pieces that have been completely erased, but of which we have
> documented knowledge of where they once were. The entire thing
makes
> sense only with all its parts. These things be of interest for some
> end users of OSM data, and hence, if someone has gone to the
length of
> mapping them, should find space in OSM.
> In my view a general rule that any mapper can erase any object from
> the map, when he does not see any trace of it, is certainly not
> correct , he may be removing parts of the thing thsat only with all
> its partsmakes sense.
Where an old railway line has been built over by houses, factories,
shops and roads I see no reason to retain the (historical)
information
in OSM.
The old railway station that still exists at one end - yes, but where
there is nothing, not even a hint, left then no.
Except, it is relatively common for traces of old railway remain
visible even after new development (e.g. house, factory, shop, road)
have been made on top of their original site.
In the case I am thinking of it is not one house, one factory, one shop,
one road ... there are many. There is no sign left in this area. Gone.
Totally vanished.
So that cabnot be used as a criteria to determine whether that should
be removed or not although the exact situation varies a lot in each
individual cases.
> Anyway i am against removing apparently useless data without
> consultation with the author, with the exception of clear errors.
Disagree.
Once the data is in OSM it is no longer the 'property' of the
author or
following editors.
If I am not certain of something I'll ask the author/flowing
editors but
where I know something is wrong I'll change it without consultation.
If you are not sure of the use or validity of something then it would
also be a good idea to ask those who might know about it.
How much time do you think I should spend searching for these people who
might know of it? And then once found how much time should I spend
trying to contact them?
Think about what you are asking an unpaid mapper to do?
I would think contacting the author and/or past editors of the item in
OSM is enough.
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