[OSM-talk] My data got deleted

[D Tucny]

2008/11/30 Tanveer Singh <tanveer1979 at gmail.com>

> On Sun, Nov 30, 2008 at 1:21 PM, Tanveer Singh <tanveer1979 at gmail.com>
> wrote:
> > On Sun, Nov 30, 2008 at 10:46 AM, ビカス ヤダワ (vikas yadav)
> > <mevikas at gmail.com> wrote:
> >> Hi,
> >>
> >> I checked one of the sections that I had surveyed, mapped and uploaded
> two
> >> months back.
> >> Suddenly when I went through that street yesterday, I could not see my
> edits
> >> anymore.
> >> It was a plain single street without a one way property while I had
> neatly
> >> placed both one way streets paralell and also given the right points of
> U
> >> turns and traffic signals.
> >> I wish to know who delete this data from the server or why is it gone.
> >> Please suggest.
>  You mean to say that you take a double road, and mark it as 2 parallel
>  one way roads??
>  This is weird. Why don't you create a single 2 way road with the
>  appropriate tag for it?
>

I'd guess because a single 2 way road doesn't show you that there is an
obstruction between the carriageways in each direction. Whether this is a
physical obstruction such as a barrier or island or a legal obstruction such
as solid lines doesn't matter. From the point of view of using the data,
especially for routing with it, being able to know that you can't cross the
opposite carriageway or make u-turns at any point you choose or in fact,
where u-turns in addition to left and right turns can be made could be
pretty useful... The data isn't just to make a pretty map, there are lots of
other uses for it that having accurate topology information could be very
useful for... Too much information captured for a particular use and it can
probably be filtered down to only the relevant information, but, if too
little information is captured, it may not be possible to fill in all the
gaps without capturing more information... I support the as much information
as possible technique :)

d
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