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Re: How should a two-digit airport runway number berepresented

• From: Debbie Lapeyre <dalapeyre@mulberrytech.com>
• To: Thomas Passin <list1@tompassin.net>
• Date: Mon, 24 Jun 2024 14:14:20 -0400

Nothing like reality to add spice to a good theory.

--Debbie

> On Jun 24, 2024, at 1:13 PM, Thomas Passin <list1@tompassin.net> wrote:
> 
> On 6/24/2024 11:36 AM, Norm Tovey-Walsh wrote:
>>> "Runways, all runways, have a 2-digit number that represents the magnetic heading of the runway to the nearest 10 degrees. If the runway's heading is 265 — 274 degrees, then the runway number is 27 — always drop the last “0.” The opposite end of the runway is 180 degrees apart, so Runway 09 (90 degrees)."
>>> 
>>> How to represent a runway number in XML?
>> As ever, “it depends”. Without knowing more about the context, I can only appeal to my aesthetic sense and intuition.
>>> What do you think? Which form is better?
>> Given that the computer doesn’t care if it’s 9 or 09, I’d probably store the value as 09. That will be familiar and natural to a human pilot familiar with reading runway signs. Or an experienced technical writer used to documenting airport designs.
>> Don’t confuse the human is always a good design choice.
> 
> To make things a bit more interesting, pilots don't speak it as "Oh-nine".  They say "nine".  When I learned to fly at Honolulu International, there were two parallel runways 04.  We would call them "four-left" and "four-right".  The tower controller would say things like "Piper zero-six-zero cleared for intersection takeoff runway four left".
> 
> 
>>                                         Be seeing you,
>>                                           norm
>> --
>> Norm Tovey-Walsh <ndw@nwalsh.com>
>> https://norm.tovey-walsh.com/
>>> The test of courage comes when we are in the minority. The test of
>>> tolerance comes when we are in the majority.--Ralph W. Sockman
> 
> 
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================================================================
Deborah A Lapeyre              mailto:dalapeyre@mulberrytech.com
Mulberry Technologies, Inc.    http://www.mulberrytech.com
Rockville, MD 20851            Phone: 301-315-9631 (USA)
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Mulberry Technologies: Consultancy for XML, XSLT, and Schematron
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• References:
  • How should a two-digit airport runway number be represented in XML?
    • From: Roger L Costello <costello@mitre.org>
  • Re: How should a two-digit airport runway number berepresented in XML?
    • From: Norm Tovey-Walsh <ndw@nwalsh.com>
  • Re: How should a two-digit airport runway number berepresented in XML?
    • From: Thomas Passin <list1@tompassin.net>