SimSig :: Topic: How does the Neck Siding work? (5/5)

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TOPIC: How does the Neck Siding work?

Re: How does the Neck Siding work? 23 Feb 2012 23:12 #41

Steamer OFFLINE Local Operations Manager Posts: 545 Thank you received: 155	maxand wrote: So another way of putting it is that when they open inward, the wheel flanges of an approaching train soon find themselves on the outside of the w-t-g points and ride up? I think I've got this right: The red rails are the switch rails (i.e. the rails that move). Forgive the crudity of the model, there wasn't time to paint it or build it to scale etc.
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Re: How does the Neck Siding work? 23 Feb 2012 23:22 #42

BarryM OFFLINE Local Operations Manager Posts: 779 Thank you received: 58	Here is a Photo.
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Re: How does the Neck Siding work? 25 Feb 2012 01:53 #43

40044
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I worked at Lime St for a year or so from 1989, although not in the 'box. I was told that the purpose of these points was to derail anything running away out of the neck but (hopefully!) without any vehicle so derailed ending up leaning to one side - for obvious reasons. I was also told that should the track circuit that covers the points occupy without a route being called, all the surrounding track circuits would 'flood' and therefore return signals to danger.

HTH

Last Edit: 25 Feb 2012 01:53 by 40044.

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Re: How does the Neck Siding work? 25 Feb 2012 13:27 #44

mfcooper OFFLINE Moderator Signaller, Victoria Central Posts: 437 Thank you received: 74	40044 wrote: I was also told that should the track circuit that covers the points occupy without a route being called, all the surrounding track circuits would 'flood' and therefore return signals to danger. Interesting. Something for the next release, methinks...
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Re: How does the Neck Siding work? 25 Feb 2012 19:10 #45

jc92 OFFLINE Local Operations Manager signalman, peak rail Posts: 1469 Thank you received: 228	mfcooper wrote: 40044 wrote: I was also told that should the track circuit that covers the points occupy without a route being called, all the surrounding track circuits would 'flood' and therefore return signals to danger. Interesting. Something for the next release, methinks... that just sounds like the trap swas fitted with interrupters
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Re: How does the Neck Siding work? 26 Feb 2012 15:20 #46

kbarber
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mfcooper wrote:

40044 wrote:

I was also told that should the track circuit that covers the points occupy without a route being called, all the surrounding track circuits would 'flood' and therefore return signals to danger.

Interesting. Something for the next release, methinks...

I'd have thought that was pretty normal... I've an idea somewhere in the back of my mind it's called Flank Protection and, when you think about it, it's a pretty logical bit of protection to have.

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How does the Neck Siding work?

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