> > this implies road markers must be present, right? Isn’t this mainly about the > distance from some zero point, even in the absence of road distance markers? > > No, many times there are no marks, for me it does not have to be implicit
I would not invent myself these numbers, I would copy them from > the gate where they have been put by the owner or municipality (regardless > of actual distances or even if they are in slight contradiction with nearby > road markers, as I have seen occur). If nothing is signposted, I would > rather map the road markers nearby (if any). > > agree, many times these addresses are calculated by the same owner Somebody remarked earlier in the thread that there are places in the US > where the distances are > used as house numbers. I think the duck test applies. It doesn't matter > if a house number is > assigned sequentially, or is based upon distance from some specified point, > or is based upon > some mad king throwing darts at a map: if it looks like a house number, is > treated like a house > number, and appears on the house/gate/whatever as a house number, then it's > a house number. > House numbers don't have to be sequential or monotonic, I can think of a > couple of roads in my > town where the house numbers are counter-intuitive. So it doesn't matter > if those house numbers > were assigned based on a distance along a road, and that subsequent road > remodelling has > resulted in them all being inaccurate without a milepost equation: if it > quacks like a house > number then it's a house number. > > If they're not house numbers marked somewhere on the property, and if there > are sometimes > (as the OP has stated) missing markers, and if road remodelling has > rendered the distances > incorrect, then what good is addr:road_marker in those particular > circumstances? > > It appears addr:road_marker is only really applicable where all of the > following apply: > > 1: The number is not marked on the property (otherwise it's a house number, > however > derived). > > 2) Road remodelling has not significantly changed the distances between the > property > and the two nearest road markers (so you know it's somewhere between marker > X and > marker Y). > > 3) Road markers have not been recalibrated following extensive road > remodelling. > > -- > Paul > > In Argentina it is common to have addresses with house number, street name, and also address per km., For example Avenida San Martín 5440, Ruta 9 km 60.5 It is often used on routes that cross small towns and suburban areas. I also saw the same thing in Uruguay, where I got to see addresses with street name, lot number, km number of the route without house number (the number of km belongs to the route and not the street numbering ) Agustin
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