It might be worth to read (01)
http://en.wikipedia.org/wiki/Track_gauge (02)
and for those who can read in Russian about Russian gauge (03)
http://ru.wikipedia.org/wiki/Ширина_колеи; (04)
In nutshell, that story about diversity of Russian gauge is not 100% true (in
the part of present diversity of gauges). As far as I understand, starting from
the middle of the 19th century all Russian (including Finland and Baltic
countries) railroad gauge was 1524mm. All German modifications during the WWII
were replaced back during the war (1944, 1945) or immediately after it. During
1970 - 1990 the gauge for the whole USSR territory was changed to 1520mm. There
are only few exceptions for railroads near western borders of the former USSR
(eg. near towns Kaliningrad, Chop, etc.) - some roads have both gauges, some
Russian and Ukraine roads have European gauge, and some roads in Slovakia and
Poland have Russian gauge. At this moment about 17% of all world railroads have
1520mm track gauge. (05)
Alex (06)
On 19 Feb 2013, at 04:29, "Barkmeyer, Edward J" <edward.barkmeyer@xxxxxxxx>
wrote: (07)
> While we are on the subject of horse's asses and rail gauges, there is
>another tale. The Russian railroads, at least those built between 1880 and
>1940, including the TransSiberian railway, used a wider gauge than the Western
>European (Roman) standard. During the German invasion 1941-1945, the German
>army had to move supplies deep into Russia, and they originally had to use
>captured Russian rolling stock and transfer all goods from German cars to
>Russian cars at the border stations. German army engineers decided it would
>be more efficient to move the Russian track to accommodate the narrower
>European gauge engines and carriages. Then a second problem arose -- the
>Russian coal tenders, being wider and higher, carried about 40% more coal than
>a German tender, and the locomotives had bigger steam tanks. The Russian
>coaling and water stations were therefore about 40% further apart than the
>German ones, and the German engines could not go far into Russia even after
>re-gauging the track. So the German engineers built new coaling and water
>stations between the Russian ones. Largely as a consequence, the operating
>railways in the Ukraine and Belarus are now standard gauge, but Mother Russia
>still has a mix.
>
> -Ed
>
> --
> Edward J. Barkmeyer Email: edbark@xxxxxxxx
> National Institute of Standards & Technology
> Engineering Laboratory -- Systems Integration Division
> 100 Bureau Drive, Stop 8263 Office: +1 301-975-3528
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> ________________________________________
> From: ontolog-forum-bounces@xxxxxxxxxxxxxxxx
>[ontolog-forum-bounces@xxxxxxxxxxxxxxxx] On Behalf Of Pat Hayes
>[phayes@xxxxxxx]
> Sent: Monday, February 18, 2013 3:28 AM
> To: deddy; [ontolog-forum]
> Subject: Re: [ontolog-forum] Architectural considerations in Ontology
>Development
>
> On Feb 16, 2013, at 3:06 PM, deddy wrote:
>
>> Aït-Kaci -
>>
>>>
>>> only reason the width of a Roman horse's ass over 2000 years ago!
>>>
>>
>> Likely largely true.
>>
>> But... this being America (which I assume is likely the same sort of chaos
>elsewhere)...
>
> In the UK there was a war between the current standard gauge used by
>Stevenson and the wider 7 foot gauge preferred by Brunel. Some lines had three
>rails to allow both to be used.
>
> Pat
>
>
>>
>> Around the Civil War there were approximately 21 rail gauges east of the
>Mississippi.
>>
>> Clearly the issue of there being a plethora of "standards" is not a new
>challenge.
>>
>>
>> The corporate game of intentional lack of interoperability is not new.
>>
>> ______________________
>> David Eddy
>> Babson Park, MA
>>
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