[OSM-newbies] Karlsrue schema exception
John F. Eldredge
john at jfeldredge.com
Mon Jun 7 04:04:49 BST 2010
On 06/05/2010 01:42 PM, David ``Smith'' wrote:
> 2010/6/5 Dirk-Lüder Kreie <osm-list at deelkar.net>:
>
>> Am 02.06.2010 22:07, schrieb Xan:
>>
>>> I have an exception of the Karlsrue schemma:
>>> http://www.openstreetmap.org/?lat=39.58109&lon=2.628682&zoom=18&layers=B000FTF
>>>
>>> How can I do for xybot respect (if it's not the case) this exception?
>>>
>> This ist not an exception to the Karlsruhe Schema, but an exception to
>> the "normal" even numbering scheme, so if any bot "corrects" that, the
>> bug is with the bot.
>> Next time please state what the exception is in the mail please (32
>> following 16 in this case).
>>
> In the US that's not an exception at all. Here it's typical for
> houses on adjacent small lots to have a difference of 6 or 8 in their
> housenumbers. Even row houses, literally adjacent to each other,
> could potentially have a difference of 4 or more.
>
> Even setting that aside, I don't see how a bot or remote mapper could
> make an informed decision that such a thing is "wrong" and needs to be
> "fixed". Unless you're observing the situation on the ground, there's
> no way to know that there's not an unmapped series of addresses in
> between.
>
>
>From my personal experience in the USA, skipped house numbers are most
likely to occur on the inside of a curve in a road. Since there is less
space available on the inside of the curve, and since road-planners
generally want to have the house numbers on both sides of straight
stretches be in sync, they will skip some numbers on the inside of the
curve. A street with a tight (small-radius) curve will have more
skipped numbers than a street with a very gentle, large-radius curve.
If the Karlsrue schema doesn't do this, how does it handle curves? Are
the lots on the outside of curves always significantly larger than those
on the inside of the curves?
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