[Tagging] waterway=penstock to complete pipeline tagging
Christoph Hormann
chris_hormann at gmx.de
Tue Oct 6 08:42:02 UTC 2015
On Monday 05 October 2015, Martin Koppenhoefer wrote:
> >
> > probably not very practical to
> > differentiate between 'pipelines with a pipe' and pipelines without
> > a pipe' underground.
>
> can you give an example for a pipeline without a pipe?
Apart from the pressure tubes of hydropower plants the most common case
is probably sewer pipes. For general transport pipelines cutting them
into rock is rare due to the high costs. Hydropower penstocks are an
exception mostly due to the high volume high pressure combination and
sewage due to the space constraints in urban environments.
--
Christoph Hormann
http://www.imagico.de/
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