Alan Millar wrote: >> Can/should this be done with relations instead of separate paths? The >> idea is to have it stick to the road. With this it creates a lot more >> nodes, and there is no easy way to manually get the spacing right >> between the road and the addresses if something is moved. Also the >> spacing needed is render dependent. > > Can it be done with relations instead of [or in addition to] separate > paths? Yes. Should it be done instead? No. > > Sure, the majority of addresses are for houses that are easily, > unambiguously identified with the street that their address belongs to. > But reality I've seen is that there are great numbers of exceptions, and > so the Karlsruhe schema is necessary to indicate where an addressed > building actually is. > > Take a look at the Clackamas Corner library: > > http://www.openstreetmap.org/browse/node/365787985 > > Now find its street, SE 82nd Ave. It is more than half a mile away. And > the library is in a strip of stores, so an addressing way would/could > apply here.
Good catch on the Clackamas Town Center situation; I'm surprised I didn't come up with it first, as I used to drive deliveries around that area as a private courier and would often lose valuable time and fuel trying to find addresses along the Cascades Highway (of which 82nd Avenue is a member) only to find my destination is five or six blocks off the highway in a maze of unnamed ways that don't appear on TeleAtlas or Navteq. This situation is by no means unique, I can think of many locations throughout eastern Multnomah County where this would apply, such as all addresses on NE Frontage Road in Troutdale, which is split over either side of a freeway, with a few addresses behind other addresses for good measure: I imagine you'd need to either terrace it out (easy in that area because of the large, easily identified lots; give each lot an outline, and tag the outline with Karlsruhe and landuse= tags) or have two interpolation ways (one each tier of lots). Out of the two, I think terracing works out better and wouldn't be a bad idea in the long term, since this would give a general idea where plot outlines are. I see interpolation as more useful as an interim measure prior to terracing, and handy for locations where terracing just won't work (such as suite numbers, "subhouse" numbers, etc) in trailer parks, and sprawling apartment blocks and business parks.
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