Re: AW: [Geopriv] Quickrandomcommentsondraft-ietf-geopriv-pdif-l o -profile-00

I don't know how to estimate this percentage, but I have a local 
example: Columbia University occupies part of a building called the 
Interchurch Building on 125th Street in Manhattan (called that since it 
is also occupied by the HQ offices of a number of Christian 
denominations). In that particular case, they are actually spread across 
non-adjacent floors and maybe even partial floors.

We discussed other examples, such as high-security or clandestine 
installations in large office buildings. (The "classical" example were 
the offices of the ATF and CIA in the WTC.)

I agree that this is not likely to be common, but not terribly difficult 
to support, either, should the need arise in the future. Given that 
z-level information is carried in both civic and geo-derived formats, I 
don't see much of an issue should somebody decide to factor that into 
making routing decisions.

Henning

James M. Polk wrote:
> At 12:42 PM 7/15/2005 -0400, Brian Rosen wrote:
> 
>> Henning has given examples where routing is dependent on z.  One is 
>> where you have an enterprise, which could be a university, which has 
>> its own response capability.  The enterprise could occupy a portion of 
>> a high rise.
> 
> 
> ok... so what is the percentage of these cases really?
> 
> How often will z be a factor in the routing decision?
> 
> A tenth of a percent of all 911 calls made?
> A hundreth of a percent?
> a ten-thousanth of a percent?
> even less of a percent?
> 
> We're engineers who want to build an architecture as good as we can, but 
> we can't take the case of the above percentages of a chance to steer our 
> efforts. That's attempting to achieve too much without the imperical 
> evidence of experience to make those decisions.
> 
> I'm a statistician by nature, and I deal in Standard Deviations, and 2 
> is a good number to work towards, 3 is excellent, and 5 is unrealistic. 
> The percentages above are getting past 4 SDs and up towards (and past) 6 
> SDs.
> 
>> Brian
> 
> 
> 
> cheers,
> James
> 
>                                 *******************
>                 Truth is not to be argued... it is to be presented.

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