On 2/26/14 3:30 AM, Georg Feddern wrote: > Am 25.02.2014 17:08, schrieb Richard Welty: >> i'm wondering if anyone can speak to where the tagging >> for fire_hydrant:type came from? > > AFAIK the Germans are guilty again - and I plea myself for not-guilty. > ;-) > (see http://wiki.openstreetmap.org/wiki/Proposed_features/Fire_Hydrant > and their history) > > And yes - pond does not really match a hydrant 'type' - the hydrant > type there may be still a 'pillar' or an 'underground', less a 'wall'. > > Is it possible, that in UK/US the 'pillar' type is the norm and the > 'underground' type is not wide spreaded? my understanding that the classic plug (pillar in our tagging) is used little if at all in the UK, but it is the norm for pressurized water system deployments in the US. underground is the norm in the UK.
> At least the http://en.wikipedia.org/wiki/Fire_hydrant uses the term > 'post- or pillar-type fire hydrant' > - but I do not know who wrote that. i'm currently tinkering with what will be come a proposal to modify current hydrant tagging. my thinking is to add fire_hydrant:water_source={main,pond,stream,standpipe} and deprecate fire_hydrant:type=pond then the issue is whether we want to modify fire_hydrant:type or replace it with a different tag altogether, say fire_hydrant:delivery if we keep type, should we replace pillar with plug or fire_plug or just let that go. i had a while back discussed updating tags for hydrants. i now have a simple set that i'm using that seems to cover the cases i'm encountering. here are colour: tags colour already exists and in this context describes the main color of the hydrant (call it the barrel color) colour:cap describes the color(s) of the caps on the hydrant if they differ from the body color colour:bonnet describes the color of the top section if it differs from the body color (i had been using colour:top but it turns out that firefighters in the US call it the bonnet; since the hydrant type is rare or nonexistent in the UK i'd suggest going with US usage) colour:reflective indicates the color of any reflective material applied to the hydrant others of value (all prefixed with fire_hydrant:) : capacity= <flow capacity in local units> class={AA,A,B,C} - American Water Works Association classification scheme, derived from capacity and may be easier to obtain in_service={yes,no} - this turns out to be a very real issue the existing diameter tag remains as is, the diameter of the main the hydrant is attached to. this measurement is commonly used in both the US and UK. things i haven't got tagging worked out for yet: outlet diameters outlet threads number of outlets wrench types orientation (is the steamer connection perpendicular to the curb, which is common, or rotated 45 degrees, which affects the hookup procedure). richard -- [email protected] Averill Park Networking - GIS & IT Consulting OpenStreetMap - PostgreSQL - Linux Java - Web Applications - Search
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