[OSM-talk] Canals, drains etc

[James Stewart]

We seem to have some gaps, and variety of practice in mapping Canals,  
irrigation canals, drains etc. Maybe this is a good topic for  
Amsterdam with some on the ground observation. The small water  
channels in the Netherlands are mapped as drains, which seems OK.  
Canals however are mapped as lakes!
http://www.openstreetmap.org/?lat=52.18404lon=4.70359zoom=16layers=B000FTF
Long irrigation canals (that are sometimes called the X Canal, but in  
the UK examples on wiki are called Drains ) are rendered too wide, but  
somehow drain does not seem right. Should we make a distinction   
between transport canal and irrigation canal?  In mapping the Fergana  
valley I have used 'canal' for the thousands of irrigation canals.

What do other people use?

James


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The University of Edinburgh is a charitable body, registered in
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Re: [OSM-talk] Canals, drains etc

[Someoneelse]

James Stewart wrote:
 What do other people use?

...if possible, whatever is used on the ground.  Otherwise (where new 
waterways have been called e.g. New River or New XXX River), 
whatever seems most appropriate (c/f if it quacks like a duck, it's a 
duck).

In some cases it gets tricky - think of a Venn diagram with river, 
drain and canal all overlapping and some examples in each overlap 
(and in the middle).  In the UK I can think of at least one place 
(Northern Lincolnshire) where this happens quite a lot.

Cheers,
Andy

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