[HOT] Waterway Tags

AYTOUN RALPH ralph.aytoun at ntlworld.com
Wed Jan 21 23:04:54 UTC 2015

I would like to raise the issue of tags for *waterway=river*,
*waterway=stream* and* waterway=wadi.*
The problem that exists with the existing tags is that there is no visual
difference on the map for a stream (perennial) and a stream (intermittent)
and the only other option is wadi which gives a blue pecked line.
Accepted mapping standards for this would be to show:-
 all perennial rivers and streams as a continuous solid blue line
(indicating that there is flowing water all year round)
 all non-perennial rivers and streams as a continuous blue pecked line
(indicating that there is flowing water during the wet season but not the
whole year).
A wadi would be depicted with a continuous pecked brown line (indicating
that it is dry watercourse and could be dry for years at a time...only
flowing if there is a flash flood or unusually heavy rain).
This would then convey the correct meanings with symbols on the map and
make reading the map a lot easier. The categories would still be searchable
and distinguish between the three categories of water flow.
The proposed tags would then be
*waterway=river* ...... *waterway= stream* ...... continuous solid blue line
*waterway=river_intermittent ...... waterway=stream_intermittent .....
pecked blue line
*waterway=wadi* ..... continuous pecked brown line (a wadi can be so wide
that another tag would be needed similar to the tag for river banks)
*waterway=wadi_bank* which would still be a brown pecked line.
This would then ease the path for introducing the tags for perennial lakes
with a solid blue outline and lighter blue fill, intermittent lakes with a
blue pecked outline and a light blue fill and dry pans with a brown pecked
outline with a brown stipple fill.
I can figure out a single tag proposal on wiki but do not know how to do
this more complex proposal as it entails changing all the tags at the same
time along with their map symbols.
If it is deemed appropriate is there someone who could do this?
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