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| a few questions the manual doesnt fully answer 31/10/2011 at 01:58 #22304 | |
jc92
3685 posts |
this is partially covered in the manual but ive got a few queries when the "user" calls up asking for permission to cross, do u actually have to operate the ground frame before they will cross, or is it just for show. obviously in real life the crossing keeper has to pull all the levers out the frame to replace the protecting signals to danger before he can get the gate release. secondly- what sort of freqency is it set at? in all the many hours ive played on worksop ive only ever had 1 phonecall from this crossing but 4 or 5 a day would be more reasonable a number perhaps? another one- when operating the block release, does it have a preset fixed time or does it vary? if its simming a rotary manual time release about a minute and a half would make sense? cheers in advance, im more than happy to add this to the manual in the wiki when i know the answers "We don't stop camborne wednesdays" Log in to reply |
| Re: a few questions the manual doesnt fully answer 31/10/2011 at 02:29 #22305 | |
UKTrainMan
1803 posts |
" said:secondly- what sort of freqency is it set at? in all the many hours ive played on worksop ive only ever had 1 phonecall from this crossing but 4 or 5 a day would be more reasonable a number perhaps?At a guess, if the amount of calls you receive is as low as that then this could be what research came up with. Perhaps the developer spoke to someone at the box and they said something like 'oh, you only get one or two calls a day at most' and so this was coded into the simulation as appropriate. Any views and / or opinions expressed by myself are from me personally and do not represent those of any company I either work for or am a consultant for. Log in to reply |
| Re: a few questions the manual doesnt fully answer 02/11/2011 at 13:03 #22403 | |
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quickthorn
23 posts |
Which crossing are you talking about?
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| Re: a few questions the manual doesnt fully answer 02/11/2011 at 13:15 #22404 | |
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jc92
3685 posts |
wow- not sure how i missed that out tbh- norwood (the only one with a ground frame)
"We don't stop camborne wednesdays" Last edited: 02/11/2011 at 13:15 by jc92 Log in to reply |
| Re: a few questions the manual doesnt fully answer 02/11/2011 at 18:28 #22414 | |
Meld
1111 posts |
" said:" said:UK well one or two a day counts for me a few years back (I was more like 3/4 timessecondly- what sort of freqency is it set at? in all the many hours ive played on worksop ive only ever had 1 phonecall from this crossing but 4 or 5 a day would be more reasonable a number perhaps?At a guess, if the amount of calls you receive is as low as that then this could be what research came up with. Perhaps the developer spoke to someone at the box and they said something like 'oh, you only get one or two calls a day at most' and so this was coded into the simulation as appropriate.  ) - would think that there would be quite a few calls to Creswell box for release as the crossing as there was nearly always at least one other car waiting to cross when i was there
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| Re: a few questions the manual doesnt fully answer 02/11/2011 at 19:35 #22417 | |
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jc92
3685 posts |
the frequency and nature of the traffic specifies the need for a crossing keeper
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| Re: a few questions the manual doesnt fully answer 03/11/2011 at 11:59 #22432 | |
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Late Turn
699 posts |
In reality, I don't think the crossing frame is released by either Elmton & Creswell or Shirebrook - after all, he has his own protecting signals! Certainly the box diagrams at each don't show any reference to a release - Shirebrook's diagram just shows Norwood's protecting signals (normally 'off' and the position of the ground frame.JC - the need for a crossing keeper (as opposed to a user-worked crossing) would be determined by the status of the road (i.e. public highway or not) if I'm not mistaken rather than anything to do with traffic levels, possibly with one or two exceptions on busy private roads that justify a crossing keeper. Log in to reply |
| Re: a few questions the manual doesnt fully answer 03/11/2011 at 17:38 #22442 | |
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jc92
3685 posts |
norwood crossing IS released by E and C in reality (shirebrook in practice nowawdays as elmton is normally switched out. and the frame sits with all signals cleared when the frame is all normal (as indicated on NRs signalling diagram)
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| Re: a few questions the manual doesnt fully answer 03/11/2011 at 19:41 #22446 | |
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Late Turn
699 posts |
If that's the case (which it could well be), it'd be interesting to learn how Shirebrook gives the release to Norwood (there's nothing obvious that I can see), and how the ability for one of two boxes to give the release works (as you imply).
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| Re: a few questions the manual doesnt fully answer 03/11/2011 at 20:01 #22447 | |
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jc92
3685 posts |
edit to the original post so to speak- exact words ive extracted from the diagrams are in bold: norwood crossing: SUPERVISED by cresswell when box open, supervised by shirebrook jcn when cresswell closed ie: i was correct about supervision, but theres no physical release. crossing keeper operated gates- the classification of crossing norwood crossing GF- levers pull to replace signals additionally the diagram displays NX2 as a semaphore stop signal, normally clear and NX3 as a two aspect colour light normally in the off position my assessment of this is that most likely norwood doesnt require a release nor a phone call, but probably has block repeaters and instructions to keep the gates closed to road traffic while a line clear has been given or a train is in section as is typical of manned crossings. lateturn: apologies- i must at some point have confused release with supervision at some point "We don't stop camborne wednesdays" Log in to reply |
| Re: a few questions the manual doesnt fully answer 03/11/2011 at 20:22 #22448 | |
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Late Turn
699 posts |
" said:lateturn: apologies- i must at some point have confused release with supervision at some point No worries, if we can get to the bottom of it then we've both achieved something! Presumably you're referring to a signalling diagram of the route rather than box diagrams? There's no reference to any form of supervision on either signal box diagram, and Norwood doesn't seem to have a diagram at all! The photos that I'm using as a helpful reference (here) don't show any sort of block repeaters at Norwood either, just a single lamp above the signal repeaters. Hopefully there's some means of indicating the presence of an approaching train (by telephone, or does that lamp have some significance?) to help him avoid putting back in front of one! Log in to reply |
| Re: a few questions the manual doesnt fully answer 03/11/2011 at 20:23 #22449 | |
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jc92
3685 posts |
ill email the area manager and find out
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| Re: a few questions the manual doesnt fully answer 03/11/2011 at 20:37 #22450 | |
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Late Turn
699 posts |
Thanks, hopefully that'll clear it up!
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| Re: a few questions the manual doesnt fully answer 04/11/2011 at 16:23 #22473 | |
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jc92
3685 posts |
confirmed Via an email and SBSIs - gates are normally closed for traffic and the keeper has to ring for permission to open up. there is no block repeater. interestingly whitwell quarry also ring up for permission to block the line for blasting .possibly the only time obstruction danger is used daily under "normal" circumstances. but thats another story....
"We don't stop camborne wednesdays" Last edited: 04/11/2011 at 16:24 by jc92 Log in to reply |
| Re: a few questions the manual doesnt fully answer 04/11/2011 at 17:26 #22478 | |
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Late Turn
699 posts |
Thanks again, that makes a lot of sense. Interesting that the "planned" obstruction of the line by the quarry is dealt with by six bells (I wonder what sort of response the six bells would get in a real emergency!), but as you say that's another story...
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