> Brendan Jones wrote in message <6fv3sm$p9k$1@sunb.ocs.mq.edu.au>...
> >Some things that I've puzzled about recently:
> >
> >1. What's with the red cables being installed throughout the underground
> > stations and tunnels (on wall mounted racks)? New signalling?
> > Associated with this cabling seems to be amber lights in the tunnels
> > and extremities of platforms that go out when a train is approaching.
> > What function do these serve? And what do the funny looking boxes
> > on the track beds with arms that drop down and go "clunk" do? And will
> > all the old cables lying completely disorganised on the track beds
> > at the underground stations be removed?
> >
> >2. At the northern end of platform 5, Wynyard, there appears to be a room
> > opposite the platform. There are about three horizontally slatted
> > grills and a pair of doors that open above the track bed to indicate
> > its presence. Air ducts seem to enter the room, as do signalling cables
> > What is this room?
> >
> >3. At the northern end of Redfern Station, on the western side, a tunnel
> > heads south and dives underneath the road bridge, disappearing under
> > platform 1. Where on earth does this tunnel go? I've never seen trains
> > enter or leave it. It's not marked on the maps and yet it is
> electrified.
>
> This is the engine dive which was for locos to go from Eveleigh to the
> country platforms at Central and vice versa. It crosses under all the tracks
> at Redfern and comes out on the eastern side.
This tunnel only seves up trains, down trains go thru the ilawarra dive at the
down end of redfern.
>
>
> >
> >4. On every staunchion in the Cityrail network is a yellow marker with a
> > code on it like "SW2+253". The 2+253 I've worked out is the distance
> > (2.253 km) from the NSW rail network zero point - the northern end of
> > the country platforms at Central. But what do the letters mean? Every
> > track seems to have different letters (e.g. CE, CI, CO, ES, SW, NS...).
> > Is there a list of all these?
> >
> >Anyone know the answers?
> >
> >PS. The closest-to-zero marker I've seen is on the Central Electric lines,
> >SW0+004. What's the furthest-from-zero??
> >
> >Cheers,
> >
> >Brendan.
> --
> Chris Stratton
> Wollongong, NSW, Australia
> stratton.chris.cp@bhp.com.au
-- Bye for now, Eben.