[Tagging] power=tower enhancement

[Guillaume Allegre]

Hello, 

I would like to propose a new tag on a power=tower (or power=pole) node.
riser=yes
to explain that the power line comes up from underground at this tower/pole.

This would be an equivalent to noexit=yes for the roads, and would allow to
quality analysis tools to better handle this situation, where a power line
apparently stops.

By the way, I'm not a native english speaker. I found this term "riser" on
this technical documentation here : 
http://psc.wi.gov/thelibrary/publications/electric/electric11.pdf
but maybe there exists a better term for this.


-- 
 ° /\    Guillaume Allègre            OpenStreetMap France
  /~~\/\   Allegre.Guillaume at free.fr  Cartographie libre et collaborative
 /   /~~\    tél. 04.76.63.26.99      http://www.openstreetmap.fr