Re: Signalling queries

["Tony Gatt" <baulko@optushome.com.au>]

"Bradley Torr" <truenorth@one.net.au.SPAMTRAP> wrote in message
01c0f26c$29211e80$5c5e65cb@default">news:01c0f26c$29211e80$5c5e65cb@default...
>
> OK, under staff-and-ticket working, what is to stop a driver using a ticket
> instead of the staff when entering a particular section, when the next
> train scheduled to enter the section is coming from the opposite direction?
> In this scenario, if the driver of the first train uses a ticket instead of
> a staff, when the second train arrives at the other end of the section,
> there will be no staff there for the second train to pick up!

The tickets are kept in a locked box at each end of the section. The key to the
box is the staff. When the box is open, the staff is locked in the mechanism,
the only way to give the staff to the driver when the ticketbox is open is to
give him the box as well (this may make him suspicious however)

The signaller issuing the staff will be aware of the traffic requirements,
however, mistakes are made and on shorter sections of track, staffs have been
known to be transferred by road when they are "at the wrong end"

> > Between Sutherland and Waterfall; Campbelltown; between Penrith and Emu
> > Plains; Berowra. However there are a few double light areas on the south
> > outside the suburban area, mainly in areas where upper quadrant signals
> > still exist in substantial numbers.
>
> So that sign I saw near Picton signified the end of one of those isolated
> double-light sections on the Main South?
>
> Regards
> BT
>