Re: Train Order working in NSW

["Notagunzel" <notagunzel@bigfoot.com>]

Dave Proctor <thadocta@spambait.dingoblue.net.au> wrote in message
8781t2$m86$1@news1.mpx.com.au">news:8781t2$m86$1@news1.mpx.com.au...
> John MacCallum wrote in message <38961563.5D0E8301@lisp.com.au>...

> I may be totally off the mark here, but here goes.....

> >Eddie covered the main points of the use of Point Indicators and
> >and Main Line Indicators quite well.

> >The main thing is that with Point Indicators once the FPL is unlocked
> >with an Operators Key when it is reversed it causes the Point Indicator
> >to move to the Horizontal. (Think of a Semaphore signal at stop)

> So, when the points are then set for the loop and the FPL is then returned
> to the "Locked" position, the arm returns to the diagonal? If not, then it
> is actually an indicator of which way the points lie, isn't it? If it does
> return to the diagonal, see my next point.

Are these points locked bothways, or only normal?  If they are only locked
normal, (as I suspect they are), then the Indicator indicating the FPL is
perfectly adequate, as it proves the points normal & locked.

> >If the Point Indicator is showing anything other than a diagonal
> >indication it is the responsibility of the driver to ensure that the
> >points are set for the Intended route. Therefore a driver when
> >approaching a Train Order location must have the train under control
> >and be able to stop before the Point Indicator if it is not set for
> >the Intended route.

> But if it is an indicator of the setting of the FPL, which should be
locked
> at all times regardless of the lie of the points, then the driver should
be
> in a position to stop the train at all times, regardless of the indication
> of the indicator.

> If the indicator was diagonal, but the points set for the loop, then
> travelling at full speed could be catastrophic.

See my above point.

--
Mr Notagunzel.
Rail Transportation Connoisseur
notagunzel@bigfoot.com
(Regrets to announce there will be no further moves at
http://www.geocities.com/nota_gunzel
until further notice is issued from this office)