[Tagging] waterway=lock_gate - is it only for nodes?

Malcolm Herring malcolm.herring at btinternet.com
Thu Mar 19 19:27:06 UTC 2015

On 19/03/2015 17:41, Richard Z. wrote:
> do you have any background info regarding the many
> "obstacle" nodes which are present in German waterways?

I don't. I found a key:obstacle page in the Wiki that associates it 
OpenSeaMap - I don't know why the authors thought that. Those authors 
are unknown to me. Looking at the actual nodes, I see that they are 
mostly also tagged with the WSV import data.

As many of the obstacle=bridge tagged nodes date back to 2007/8, my 
guess is this is a case of tag 'infection'. The recent mappers would 
have found many bridges on German waterway had obstacle=bridge tags & 
assumed that this was the way to tag them, then included those tags in 
the import.

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