[OSM-talk] Yet another street number scheme

Karl Newman siliconfiend at gmail.com
Tue Oct 14 16:58:52 BST 2008


On Mon, Oct 13, 2008 at 5:41 PM, Frederik Ramm <frederik at remote.org> wrote:

> <snip>

As for the efficiency in storage, I suggest you take the long-term view:
> I am 100% sure that at some point in the future, OSM will have at least
> one node for every house, more likely a building outline for every
> house. Look at this if you don't believe me:
>
>
> http://informationfreeway.org/?lat=51.03267406093207&lon=13.718639663339111&zoom=15&layers=B0000F000F
>
> At this point it will be trivial (easy to edit, easy to handle, and
> requiring little extra storage) to simply add a house number tag to
> every one of these buildings. Any sort of complex relations for roads
> with interpolation rules for house numbers will then simply be
> unnecessary.


That's not really true, because there are devices (such as Garmin GPS
receivers) on which we would like to use OSM data, which need address
numbers in a compact format with interpolation rules. Trying to
reverse-engineer the scheme (odd, even, both, etc.) from single nodes that
aren't even part of the way is nigh-impossible, or at the least, wastefully
compute-intesive and error-prone.

Karl
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