[Tagging] Feature Proposal - RFC - temperature

[John Willis]

If we're going to have a temperature key - there should be some qualitative values in human understandable ranges. Yes, they are subjective. 

Cool/ cold / frozen / danger-cold
Warm / hot / boiling / danger-hot

Mild (human range comfortable, both hot and cold) 

This allows tagging for objects / pipes / buildings with unexpected temperatures.  there are refrigerators (cold) sub-zero freezers (danger-cold) and exposed steam pipes (Danger-hot) which have very different temperatures from their ambient environment - and knowing the exact temp of the freezer, or the range it operates in is not so useful, but knowing that it is someplace where if you stayed there, it could kill you is very useful. 

There could also be a sublet value to define class of method, if the object itself isn't the source of the temperature (aka a steam pipe is inherently hot, but a room is made hot by a device or method)

temperature=mild
temperature:hvac=controlled (heated&cooled) 

temperature=warm
temperature:hvac=heated

temperature=warm
temperature:fire=heated

temperature=danger-cold
temperature:hvac=cooled

temperature=-20 (c)
temperature:hvac=cooled

(freezer warehouse where the value is constant and known)

Filing all the different man made heating options (radiator, electric heater, oil boiler) it all gets filed under HVAC (heating ventilation air conditioning), as method might be very hard to determine how something is kept warm, but it could be filed in the hvac subkey. 

Temperature:hvac=kerosene_heater

Temperature:fire=wood_fireplace

Just my ideas, not sure how well they fit - but having some kinds of qualitative values is important, as the range is more useful than the exact number most of the time. 

Javbw


> On Feb 6, 2015, at 9:22 AM, Bryce Nesbitt <bryce2 at obviously.com> wrote:
> 
> There are cases where an approximate temperature is more useful than a single scalar number.
> For example a drinking fountain may be "chilled", but not operating at a single fixed temperature.
> Similarly there's a big difference in a tropical climate between a building with A/C and one without.
> And a mountain hut with a fireplace, compared to one without.  Neither can be expressed well as a temperature=.
> 
> In many cases what matters is the ability to warm or cool from ambient.  A/C give you the ability to
> make a room cooler than ambient, but not hotter.  A fireplace the opposite.  Thus perhaps instead:
> 
> heated=yes
> cooled=no
> 
> Could apply to pools, spas, hotel rooms, water taps.
> _______________________________________________
> Tagging mailing list
> Tagging at openstreetmap.org
> https://lists.openstreetmap.org/listinfo/tagging