On Nov 17, 2011, at 11:21 AM, Poul-Henning Kamp wrote:
> No, that means that all trains built in the last approx 10 years, are
> built without handling for leap seconds.
Train systems are bigger than this one standard. Other aspects of their
logistics will exhibit different timekeeping behavior. Assuming that
redefining UTC is a panacea (a Procrustean justification if ever there was one)
is not a coherent engineering plan.
> For further reading, I can recommend the ERTMS(2) family of standards,
And is that where they say that it will cost more than this:
http://www.eso.org/public/teles-instr/e-elt.html
to perform a recertification that nobody has demonstrated is necessary? And do
they provide a risk assessment that redefining UTC to no longer provide
Universal Time can and will have no effects whatsoever, even regarding
interoperability with such things as container ships and airlines?
If you don't want a sermon, don't make blanket claims with no supporting
engineering. BTW, are your slides from the USNO presentation online?
Rob
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