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| Ripple Lane - Up Goods Line 14/06/2015 at 10:50 #73321 | |
Andrew G
552 posts |
Is there any logic/rationale as to why the route from 806 to 804 on the Up Goods is Subsidiary Only - rather than a Main aspect when clear and Subsidiary for Permissive working?
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| Ripple Lane - Up Goods Line 15/06/2015 at 05:17 #73385 | |
ozrail
197 posts |
While on the subject of Ripple Lane Up Goods at signal 808 there is a reference #2 Ripple lane east sorting sidings, but no tracks are show. Is it only one line or it not shown at all? Or am I looking in the wrong place?
Last edited: 15/06/2015 at 05:20 by ozrail Reason: grammer Log in to reply |
| Ripple Lane - Up Goods Line 19/06/2015 at 17:02 #73524 | |
GeoffM
6376 posts |
I don't know why UR806 only has a red and a sub aspect. It's equivalent to UR807/809 going the other way, and I've checked it against various sources (including SSI data) and they all confirm the same. Ripple Lane East Sorting Sidings is just the one line, and not a siding either! It probably persists from before the resignalling. SimSig Boss Log in to reply The following users said thank you: Gwasanaethau, ozrail, flabberdacks |
| Ripple Lane - Up Goods Line 20/06/2015 at 13:41 #73550 | |
moonraker
370 posts |
In the OPC Rail Atlas I have for 1986 Ripple Lane Yard is only the West Sorting Sidings. On the Dagenham Dock side was only the FLT, the old Diesel Depot and a C & W repair facility.
Last edited: 20/06/2015 at 13:41 by moonraker Log in to reply |
| Ripple Lane - Up Goods Line 21/06/2015 at 13:10 #73571 | |
kbarber
1742 posts |
I think Ripple Lane had been heavily rationalised by '86.
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| Ripple Lane - Up Goods Line 21/06/2015 at 13:11 #73572 | |
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Andrew G
552 posts |
" said:I don't know why UR806 only has a red and a sub aspect. It's equivalent to UR807/809 going the other way, and I've checked it against various sources (including SSI data) and they all confirm the same.Thanks for looking into this. While it seems a bit strange it is one of those examples as to why Signalling is so interesting. Log in to reply |
| Ripple Lane - Up Goods Line 21/06/2015 at 16:48 #73580 | |
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moonraker
370 posts |
Ripple Lane is pretty much the same as it was in the 80's Although the diesel depot has long since closed. But as for trains in the area is probably seeing a bit more use of late even with the decline of the Ford factory nearby.
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| Ripple Lane - Up Goods Line 21/06/2015 at 18:25 #73585 | |
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Danny252
1461 posts |
It is acceptable to have a Main aspect reading onto a signal with no Main aspect? E.g. would it be valid to have 808 show yellow into a shunt-signal-only 806? I suspect not, hence why 806 requires at least red main aspect - however, why it lacks the other aspects is beyond me!
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| Ripple Lane - Up Goods Line 21/06/2015 at 18:29 #73586 | |
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JamesN
1607 posts |
Main Aspect needs to read onto another Main Aspect (Buffer Stops and Stop Boards usually count as a fixed red light do these purposes) Yellow - Shunt is not permitted. From what I understand UR806 has R and S, so 802-806 main aspect is permitted. Log in to reply |
| Ripple Lane - Up Goods Line 22/06/2015 at 07:47 #73598 | |
flabberdacks
636 posts |
" said:It is acceptable to have a Main aspect reading onto a signal with no Main aspect? E.g. would it be valid to have 808 show yellow into a shunt-signal-only 806? I suspect not, hence why 806 requires at least red main aspect - however, why it lacks the other aspects is beyond me!Not sure exactly what the UK rule says, but where I am, a main aspect is a proceed authority to move through an unoccupied block all the way to the next main signal. Any shunt signals in that block should be cleared in such a way to allow the train to go from one main signal to the next. You'd note in SimSig that if you have a shunt signal that forms part of a main route, cancelling the shunt should return the main in rear to danger for this reason. Drivers seeing a caution would be expecting to have to stop at the next main signal, braking appropriately. So the driver would then come up towards the next main signal (showing danger), notes the shunt indication displayed below the red, and know they can proceed past that signal as well but only to the next shunt signal (or as far as required), AND the block may be occupied. Log in to reply |
| Ripple Lane - Up Goods Line 30/07/2015 at 18:36 #74608 | |
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GB
64 posts |
I suspect it has a fixed red for the same reason a fixed red was added to the London end of Reception 2 at Ipswich...so that freight coming off the GE or East Suffolk has a faster and clearer approach onto that line...thus clearing the mainline and junctions quicker. Why a fixed red and nothing else I presume is because it would have required the signalling to be altered which obviously requires time and money. Last edited: 30/07/2015 at 18:38 by GB Log in to reply |