jesper
> what came first the boundary or the railway?
it looks like the railways must have come first in every case
& it seems the soviets must have pinned the boundaries to the
railways in places just for administrative convenience
but if the railroads were the property of the federal state anyway
rather than of the individual republics
as also seems most likely
tho i admit i dont know this for a fact
then there may never have been any allocation to the individual
republics of responsibility for or ownership of the tracks or beds
or equipment etc
nor any interrepublic collaborations nor condominiums etc
based on sharing them
rather
soviet railway management & ownership seems much more
likely to have been federal than interstate
again just guessing
but if that is true
then such railway based borders function more like allocational
lines or metaboundaries than real boundaries
or even like federal buffer strips between republics
in any case it now looks as tho the postsoviet republics are
finding it necessary to back away from such arrangements
for their own newly defined administrative convenience
which of course is now a function of their disunion rather than
union