Re: RIP ASW?

[mauried@commslab.gov.au (Maurie Daly)]

>I have said before that the former AN train order system operated between across
>the Nullabor is a cheap but successful system and with the additions of loop
>enhancements ought to be sufficient for our needs in Aust. When the train
>density
>builds to something impressive, then do something about it further. CTC will not
>stop the odd incident where a train heads into the section without authority so
>it
>is not the be all and end all system.

>BTW I have heard that a CTC project that was being developed some years ago for
>this very section of line across the Pleurisy Plains has been taken out of
>storage
>and is being dusted off as we speak. No doubt its cost will have increased but
>it
>looks like getting a top green now.

>David Langley.


The one thing that CTC has got going for it over TO is that even though it 
wont prevent a driver disobeying a red and heading into a single line section 
with the obvious potential risk , it does allow the Train Controller to know 
whats happening, ie he can see the impending disaster on his diagram and 
possibly but not always warn other trains .
CTC with radio comms to the trains is almost but not quite as good as ATP.
If we go further down the road of DOO (uggh) and try to at a later date 
implement some sort of ATP, you cant do this in a TO environment.
If we do implement CTC then hopefully also we will learn from Hines Hill and
outlaw running crosses.

MD