DrJimi
Virtual District Line construction engineer and arborist
Posts: 365
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Post by DrJimi on Dec 23, 2006 14:27:02 GMT
I think this has been discussed, but I can not find it. Apologies if so. I'm designing a dastardly activity for the virtual DL...
Hypothetical: Assume you come to a red signal (happens to have an 'arbor light too, not at all dissimilar to WM20/21 ;D ) The red light goes out, but no green shows (dead bulbs?), and possibly no arbor lights either. The lack of red (it was lit) suggests it's clear, but it might be stone dead. State of trainstop undetermined. What's the procedure? Do you need to contact the Line Controller? Do you call signaler to get authorization to 'pass under rule', treating it as a failed signal? In such a case, what do you tell/ask the signaler? What does he tell you? Example phone or radio dialog would be most instructive.
Thanks in advance, Jimi
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Post by agoodcuppa on Dec 23, 2006 15:16:50 GMT
A signal with all lamps out (i.e. black) is treated as being at "Danger". Proceed in accordance with instructions for the type of signal concerned and any local instructions.
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Deleted
Deleted Member
Posts: 0
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Post by Deleted on Dec 23, 2006 16:23:20 GMT
A LU signal with harbor lights would be a semi-automatic, so on all lines except the Central would require the attendance of a Station Supervisor or similar.
The SS would tell the TOp not to move their train and the SS would then contact the signal operator to arrange how the train will be authorised past the defective signal. i.e. Route secure available, secure the points.
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Deleted
Deleted Member
Posts: 0
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Post by Deleted on Dec 23, 2006 17:33:27 GMT
no green or red must be treated as a signal at danger but if the driver SPAD'ed the signal it would go down as a technical SPAD i.e not the drivers thought if the signal has the junction indicator lit but either no aspect or just a red then it still needs to be treated as a signal at danger by the fact the indicators have lit up it means the selection side of the circuit is fine but it has not detected the correct amount of current being drawn by the lamps minimum is 3 filaments
junction indicators have 3 lamps double filament in each so 3x2 = 6 filaments
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DrJimi
Virtual District Line construction engineer and arborist
Posts: 365
|
Post by DrJimi on Dec 23, 2006 17:57:37 GMT
Understood gentlemen, and thanks! I'll have to simplify that a touch for the sim, but will note the correct detailed process in the related readme file.
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