On Wed, 8 Apr 2015, fly wrote:
> Am 06.04.2015 um 23:45 schrieb Ilpo Järvinen:
> > On Mon, 6 Apr 2015, fly wrote:
> >
> >> Even entrance=staircase seems to be problematic as it overlaps with
> >> entrance=main and entrance=service.
> >
> > No it doesn't. The entrance is either entrance=staircase or
> > entrance=service so I see entrance=staircase as a sort of subclass
> > of entrance=main. And BTW, the main condition "backdoor" that is used in
> > the comment of entrance=service pretty ambiguous to begin with. This is
> > especially true in many case with building=apartments doors leading to
> > staircases from both sides (this comes with an experience of pretty many
> > entrance=staircase nodes mapped) but this might of course somewhat depend
> > on country/area/suburb.
>
> I was thinking about a building=apartments with one main entrance and a
> backdoor both leading to the indoor staircase.
Sure, I understood what you meant...
> The backdoor might be open for everyone, leading to a private parking
> with restricted access or even only leading into a private garden of one
> single household.
...My point was that it's too often hard to determine which one would
be which or if both should be =main based on survey alone or simply too
subjective. Based on your condition it could even be that both
would be leading to garden/parking and should be marked as =service?!?
I don't think we should make mapping them harder than it needs to be
(e.g. such a complicated decision between main and service). But like
I said earlier, it might be easier in some other country so I cannot claim
that it would be universally hard to determine (perhaps yours belongs to
that category?).
> Now when to use main, service, staircase or service.
No! If it leads to the staircase it's entrance=staircase regardless of
such subjective main/service distinction which is mostly bogus anyway as
functionally it's an entrance to an staircase. I know that in many cases
one could clearly get that main/service right but there are way too many
cases where it's not clear. I'd want use entrance=service if and only if
the entry goes e.g. through a bicycle storage room or it's extremely clear
that it's restricted backdoor (usually here this latter case won't even
have marking for addr:unit so one might not even know by survey alone that
it'd lead to any staircase directly).
> If I go one step further and create a separate building:part=staircase
> within the building=apartment the only true value for the front door
> which fits for both is main and staircase is redudant.
Sure, we can also map roads as areas and lots of problems would go away
but that's not happening in large scale. Even less likely to happen with
staircases that are spaces that members of public might not have right to
enter without good reason (e.g., to survey. I suspect it wouldn't count as
"good reason" :-)). No offence, but I think building:part=staircase on
large scale is just wishful thinking ;-).
--
i.
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