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Possible Bug

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Possible Bug 13/08/2011 at 18:17 #19395
Stephen Fulcher
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2084 posts
During the current multiplayer game, we have a reported Track Circuit Failure at Hallen Marsh Junction, shown up in the F7 log, but not visible anywhere on the panel.

I have a saved game if you require it.

Last edited: 13/08/2011 at 18:18 by Stephen Fulcher
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Re: Possible Bug 15/08/2011 at 14:09 #19429
UKTrainMan
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1803 posts
At a guess, if it isn't visible on the simulation then it may have occurred in one of the areas just off sim, such as Hallen Marsh (Merebank Sdgs) Sdg 1 / Sdg2 or Chittening Estate Sdgs.

Note that some failures may be reported as having occurred in one place when it is actually somewhere else close-by, such as once on KingsX during a multi when I was on Palace and had some kind of failure reported as being in the New Barnet area when it was actually at Oakleigh Park.

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.
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Re: Possible Bug 15/08/2011 at 16:00 #19436
Lardybiker
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771 posts
TC failures shouldn't happen if the TC is not visible or off sim. If that's the case it a bug.

UKTrainMan is correct that sometimes the location is that specific when a TC failure occurs so you sometimes need to look around for it. However, if you get a failure reported for one spot and it should be somewhere else, that too should be reported as a bug as well.

To report it, you'll need the TC number and its reported location and what should be its real location.

Last edited: 15/08/2011 at 16:00 by Lardybiker
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Re: Possible Bug 15/08/2011 at 18:08 #19449
GeoffM
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6376 posts
" said:
Note that some failures may be reported as having occurred in one place when it is actually somewhere else close-by, such as once on KingsX during a multi when I was on Palace and had some kind of failure reported as being in the New Barnet area when it was actually at Oakleigh Park.
In real life, at least initially the signaller may only be aware of a failure in broad interlocking terms ("(non)critical fault in interlocking XYZ"). Since we don't always know interlocking boundaries in SimSig, the locations are grouped to a nearby key place, so New Barnet reported as Oakleigh Park may not be wrong - just "somewhere near New Barnet is a failure".

SimSig Boss
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Re: Possible Bug 15/08/2011 at 21:21 #19460
Stephen Fulcher
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2084 posts
Unfortunately, I cannot tell you the track circuit number, because I do not know which one has allegedly failed because there is no track circuit showing occupied anywhere near there.

If anyone needs the Savegame then I can provide it.

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Re: Possible Bug 16/08/2011 at 04:29 #19464
lawndart
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24 posts
I have also experienced signal lamp failure warnings where no obvious failure manifests itself.
I have all the display options checked except Panel signals.
Possibly the failure is in a section of track or signal which does not exist in the era being used?

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Re: Possible Bug 16/08/2011 at 05:12 #19465
BarryM
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2158 posts
" said:
I have also experienced signal lamp failure warnings where no obvious failure manifests itself.
I have all the display options checked except Panel signals.
Possibly the failure is in a section of track or signal which does not exist in the era being used?

I have also experienced this type of failure and found that the yellow lamp has failed. Consequently, you may not see the failed signal until a driver reports standing at the signal.
Barry

Barry, Sydney, New South Wales, Australia
Last edited: 16/08/2011 at 05:13 by BarryM
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Re: Possible Bug 16/08/2011 at 08:32 #19466
Stephen Fulcher
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2084 posts
Lamp failures will only be noticeable on the panel when the lamp which is blown is the same as the aspect which should be displayed by any given signal.

For example if a signal has a blown red lamp and is showing yellow at the time you will not see the fault on the panel - it will only be obvious to the signalman when that aspect should be lit in the signal, at which point you will get a lamp out indication.

Track circuits however are all indicated on the panel at all times - the only way you could get a track failure with them all clear in real life was if there was an intermittent fault, but this is not replicated in SimSig as of yet. As an S&T Team Leader, I hate them because they are the hardest to find and sods law says they always clear when I arrive.

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Re: Possible Bug 16/08/2011 at 09:44 #19469
broodje
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184 posts
Stephen, you say that the signaller gets a blown lamp indicator on the panel, but isn't that only true for controlled signals, or do automatic signals also have the same indicator installed? And how is that then displayed on panels? Most times automatics are not displayed (only by symbol) on panels.
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Re: Possible Bug 16/08/2011 at 18:03 #19480
jc92
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3690 posts
" said:
I have also experienced signal lamp failure warnings where no obvious failure manifests itself.
I have all the display options checked except Panel signals.
Possibly the failure is in a section of track or signal which does not exist in the era being used?
also applicable to position lights, which aren't normally fitted with lamp proving circuits.

full on lamp failures are rare in real life due the the reserve lamp kicking in

"We don't stop camborne wednesdays"
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Re: Possible Bug 16/08/2011 at 21:47 #19491
Stephen Fulcher
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2084 posts
Broodje, in SimSig if you do not have the "panel signals" selected then lamp failures will be show in the manner in which I have described.

Also of note, in many modern installations, certainly those with SSI and WestCad, such as at Leamington Spa whose interlockings I am intimately familiar with, the exact aspect is displayed to the Signaller on the workstation at all times, and with the exception of the top yellow lamp, are all proved and the SSI knows that if the "EC" bit has not come back from the trackside, then the lamp which has been called on the output bits is the one which is defective and flags up a fault on the Technicians Terminal accordingly - for instance "Fault on LSPA01 - CRITICAL, Signal 44 Green Lamp". The three interlockings at Leamington have now been replaced with WestLock, which works in much the same way as far as the Signallers are concerned, but which is even more functional as far as the Technicians Terminal is concerned.

Banbury South, another area I know intimately, has an NX panel at one end of the box to control the Aynho Junction area with a single SSI. The automatic signals on the DCL at Heyford and Somerton do not show on the panel which aspect they are indicating at any given time, but there is still an indication for the Signaller to see whether or not the signal is lit, and if a signal is not lit then the fault on the SSI Technicians Terminal for that signal will still be specific to the actual aspect that is blown presented as above.

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Re: Possible Bug 16/08/2011 at 21:59 #19493
mfcooper
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707 posts
None of Victoria Central's auto signals show any aspect, and we would have no indication if one had failed in any way. They are all drawn on the panel with no lamp proving in them. The only ones that show an aspect are those with an emergency replacement facility, which *should* show the red aspect on the panel when the replacement switch is used. (However, these cannot be relied upon). They do not show the red aspect under normal working.
Last edited: 16/08/2011 at 22:00 by mfcooper
Reason: missed a bit

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Re: Possible Bug 17/08/2011 at 06:35 #19500
broodje
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184 posts
Actually the panel signals are not working correctly in SimSig in that case. Although they do not show any aspects, they do show failed. Or at least that is the way it works on Cambridge. I guess you shouldn't get any indication if an auto signal fails until a driver passes the signal and sees the faulty aspect (if red is failed, but the driver passes the signal at green or yellow you should not get a call).
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Re: Possible Bug 17/08/2011 at 08:24 #19506
GeoffM
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6376 posts
Actually I think it depends on the age and design of the interlocking. In a few places there are indications for groups of auto signals so if a filament fails on one then the signaller knows that at least one in that group has failed. Similarly, I can see interlockings where the lamp proving has been provided for specific auto signals - not necessarily all, but perhaps they are key in some way. In situations where the lamp proving is known for specific signals then they can be shown on IECC.

Shunt signals often have lamp proving if they form a preset shunt ("running dummy"or limit of shunt.

SimSig Boss
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