> On Sep 25, 2016, at 3:30 AM, Warin <[email protected]> wrote: > > Hi, > > There is a draft to tag floodplains using the key natural. > > > http://wiki.openstreetmap.org/wiki/Proposed_features/floodplain > > > My thinking is that this would lead to conflicts with other 'natural' tags .. > like natural=scrub than may be applied to the same area. > > > So .. what would be the best key to use for this feature/value? > > I am thinking that as it is associated with a waterway (it must start to > flood from somewhere and that is usually a waterway) that the key waterway > should be used. It would have rendering similar to a lake - but > 'intermittent' so dashed lines rather than a solid colour. > > > Thoughts? > > > {There is presently flooding in some areas of Australia, why my thoughts have > turned to this. All too soon it will turn to bushfires} >
Concur that natural=floodplain will be in conflict with other tags likely to be used on the same area. natural=sand, natural=scrub, natural=grassland all come to mind for areas I am familiar with which are in flood plains. On that page there is a link to flood_prone=yes which seems to be a usable tag to me, so I don’t see the reason for a new tag. Though “prone” has a connotation of fairly frequent occurrences while in the desert areas I am familiar with, you can go decades between events that will have enough water to cover a flood plain.
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