I’m from Germany and was just working a bit on the WikiProject Emergency Cleanup when I stumbled over this tag emergency=slipway. They all seem to be located in Poland.
Could you maybe explain what this exactly stands for? Are there boats installed at those locations?
https://en.wikipedia.org/wiki/Slipway#Lifeboat_slipways (emergency=lifeboat_slipway might have been a bit better)
I think slipway tagging in general isn’t that great, because leisure=slipway make no sense, but until someone comes up with something better i would be great if you could maybe document it: http://wiki.openstreetmap.org/wiki/Tag:emergency%3Dslipway