Re: Flinders St CBI

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

Eddie Oliver <eoliver@efs.mq.edu.au> wrote in message
37B7DEAB.7636BAB7@efs.mq.edu.au">news:37B7DEAB.7636BAB7@efs.mq.edu.au...

> If the flagpersons are doing their job properly, they would typically be
> much slower than signals. Presumably a theory might be that they could
> visually determine that the preceding train had passed the signal
> immediately in advance (without any overlap past that signal) and
> therefore allow the next train to follow quicker than waiting for the
> overlap to clear (as required to release the signal). However that would
> simply be a recipe for disaster when the train ahead just APPEARED to
> have passed the signal in advance but was still foul, and it would also
> cancel the very safety advantages that overlaps provide. If the
> flagperson has to wait for the flagperson at the next signal to advise
> orally that the train in advance has cleared, and if proper radio
> protocols are followed, then the signal would typically be ready to
> clear anyway.

Over that weekend 28&29/08, the existing relay interlocking over the
Jolimont Lines/PU lead/Platform 14 area will be replaced with the CBI/SSI.
Most trains will work in/out via the loop, but for the football extra's on
Saturday arvo, the spcl's will be worked direct to Flinders St thru the
resignalling.  Because the signals wont be working, the intermediate autos
will be bagged and trainstops tied down, (this is a NSW idea apparently),
and the passage of trains regulated by flagmen.  Will be fun to watch :o)

> All in all, the idea seems downright bizarre, and contrary to the most
> basic safeworking principles.

Is it safe?  'spose it depends on who you use as flagmen?

> Is the idea just a bit of fanciful gossip, or is someone in Hillside
> Trains (or some other authority) trying to reinvent the world?

Hillside's trains, JRP's a Bayside project, 412 contractors & consultants,
what better way to press your credentials than reinvent the wheel?

--
Mr Notagunzel.
Rail Transportation Connoisseur.
notagunzel@bigfoot.com
(Waiting for the next move at http://www.bigfoot.com/~notagunzel)