I can respond to tell you what seems most familiar to me, a native American English speaker: flow_rate in gallons/sec or per minute. Now, that being said, I am all in favor of avoiding the archaic system we still use in the U.S. and using a default flow_rate in cubic meters/second (or per minute) or alternatively cubic centimeters/sec (cc/sec).
Cheers, Dave On Sun, Aug 27, 2017 at 3:18 PM, Viking <vikin...@tin.it> wrote: > Hi, I've been away for a week. I'll try to read all your comments. > First of all: Dry riser is a device. Suction point another one. Hydrant > another one. Three different things, three different tags. Ok? > Then I agree to remove the use of : where possible. > The word "capacity" is in most cases synonymous of "volume", not > "volume/time". It is suitable for a park, for a tank, for a pond. Instead > the term "Flow capacity" is sometimes used for streams or pipelines, but I > think that the best words are "flow rate": is there a native Englishman > that can confirm this? In any case, I would use the word "flow", because > it's more intuitive for non British users. > For hydrants or suction point we need to have l/min or gpm: it is > necessary for quick calculations when we refill the water tank. So if we > use the universal tag flow_capacity=* (or flow_rate=*) the international > standard unit will be m3/s, that is suitable for river, streams, etc., but > we'll need to specify each time l/min or gpm for hydrants and suction > points. > Do you think that it is better to use a universal tag (flow_capacity=* or > flow_rate=*) and specify each time the unit of measure rather than have a > hydrant specific tag (fire_hydrant:flow_capacity=* or > fire_hydrant:flow_rate=*) with its own default unit (l/min)? > > > Currently a contributor can create a emergency=fire_hydrant. > > It's right, it is usable if you don't care about pressure (for example > if you have anyway a pump with you). > > Another day, another contributor will add additional information. > And if we divide emergency=fire_hydrant from emergency=suction_point what > changes? Nothing. > If a contributor (in some cases and in some countries) can't distinguish > an hydrant from a suction point he will randomly use one tag or the other > (more probably emergency=fire_hydrant). > BUT, if you have anyway a pump with you, even if the tag is incorrect, you > can take water from that point. > And eventually another day, another contributor will fix the tag. > The problem is not which way we choose to tag these objects, but the > problem is in the real world where different object are not visually > distinguishable by an inexperienced mapper. > > I will read other comments in the next days. > Best regards, > Alberto > > > > --- > Questa e-mail è stata controllata per individuare virus con Avast > antivirus. > https://www.avast.com/antivirus > > > _______________________________________________ > Tagging mailing list > Tagging@openstreetmap.org > https://lists.openstreetmap.org/listinfo/tagging > -- Dave Swarthout Homer, Alaska Chiang Mai, Thailand Travel Blog at http://dswarthout.blogspot.com
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