On Sat, 31 Aug 2019 at 20:51, Paul Allen <pla16...@gmail.com> wrote: > Verifiability is a problem. >
Near here, there's one office building built lake-side, that has a car park as the ground level of the building. The car park has a line painted round it, about half way up the wall (1.2 - 1.5 m's) labelled as the 1-100 year flood level. Another river side shopping centre has signs down the river end of the car park, warning that that part of the park floods during heavy rain. The first one is only a potential, so you wouldn't map that as flood prone, but you would the second, but how? You could add flood_prone=yes to the car park tag but that will show the whole car park as affected, whereas it's only the bit down this end that has a problem. Would drawing a separate area & marking that as flood_prone=yes work? Thanks Graeme
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