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Junction box
Chief Train Controller
Joined: Nov 18, 2005
Last Visited: Nov 29, 2008
Location: newy
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Posted: Sat Jul 07, 2007 8:51 pm
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Just wondering does anybody have any old or current pictures of Chullora box,junction or branch please.
Of all the boxes I have worked this old girl was the best and its a shame it was let go,the 48 lever 30 rotary switch frame was a pearler and the place was gunzel city with everything hitting the one place reguarly.
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EMD-SD45X
Train Controller
Joined: Oct 30, 2006
Last Visited: Dec 1, 2008
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Posted: Sat Jul 07, 2007 9:21 pm
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Sorry to tell you but Chullora Box is gone, not a trace left either.
The North Fork (single line) is now concrete + 60HH rail (as of Easter this year) and not a semaphore in sight.
When was the last time you viewed the Chullora Branch as it has gone through a few changes.
RIP Chullora as we knew it (here I go ranting again) 
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BDA
Chief Commissioner
Joined: Oct 17, 2003
Last Visited: Dec 3, 2008
Location: Sydney
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Posted: Sat Jul 07, 2007 11:23 pm
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Virtually all traffic gets round malfunction junction much faster now .
Vail Spewie and his obstructionist tendencies ...
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Junction box
Chief Train Controller
Joined: Nov 18, 2005
Last Visited: Nov 29, 2008
Location: newy
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awsgc24
Minister for Railways
Joined: Feb 18, 2003
Last Visited: Dec 3, 2008
Location: Sydney, NSW
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Posted: Mon Jul 09, 2007 11:01 am
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| Junction box wrote: |
I think the removal of the up north fork was a cost cutting measure but it also reduced the options for the signaller, espeacially to clear the up main.
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The old double junction had two diamonds which perway do not like. The new leaner junction eliminates these diamonds.
Should there be any justification for putting the double track around north fork, this would no doubt be done without any diamonds, leading to an improvement of the layout compared to what was there before.
The desirable elimination of the diamonds was paid for by the elimination of the double track around north fork.
If you hang on to facilities containing undesirable components just because that is what has always been there, then improvements will never be made.
As another example, the elimination of a diamond at Moss Vale by two ladder crossover makes it possible after resignalling to terminate down trains directly in the Up Platform number 1, which is good for flexibility.
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TE2815
Minister for Railways
Joined: Mar 19, 2004
Last Visited: Dec 2, 2008
Location: Under the newsdesk !
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Posted: Mon Jul 09, 2007 4:02 pm
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| awsgc24 wrote: | | As another example, the elimination of a diamond at Moss Vale by two ladder crossover makes it possible after resignalling to terminate down trains directly in the Up Platform number 1, which is good for flexibility. |
No it won't  That arrangement of crossovers is there no and it is an unsignalled move to do it now. Trust me it is not planned in the new working either  .
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EMD-SD45X
Train Controller
Joined: Oct 30, 2006
Last Visited: Dec 1, 2008
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Posted: Mon Jul 09, 2007 5:51 pm
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It only "eliminated" 1 of the 2 diamonds at Chullora Jtn West as 1 is still there.
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awsgc24
Minister for Railways
Joined: Feb 18, 2003
Last Visited: Dec 3, 2008
Location: Sydney, NSW
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Posted: Mon Jul 09, 2007 9:07 pm
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| EMD-SD45X wrote: | | It only "eliminated" 1 of the 2 diamonds at Chullora Jtn West as 1 is still there. |
The original designer of West Jtn left no straight track that would have allowed a crossover to replace the second diamond.
Also eliminated 1 diamond at North Jtn.
At nearby Sefton Park Junctions there are 4 diamonds. The one going from Birrong to Regents Park has such poor geometry (the track itself is in good condition) that there is a 10km/h speed limit, even though the sharp 200m curves themselves are capable of 40km/h. Not enough care was taken in designing these junctions in the first place.
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