GWR 158
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« Reply #120 on: August 17, 2024, 15:49:52 » |
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Hi all,
How far down on the CML does the St.Erth signal box cover?
Thanks all in advance GWR▸ 158
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REVUpminster
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« Reply #121 on: August 17, 2024, 20:48:43 » |
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Hi all,
How far down on the CML does the St.Erth signal box cover?
Thanks all in advance GWR 158
It looks like 7 miles. Up to a mile west of St Earth 6 miles towards Cambourne taking in Hayle.
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eightonedee
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« Reply #122 on: August 17, 2024, 20:55:37 » |
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Camborne I hope (although the new town in Cambridgeshire is in the same general direction....)
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Witham Bobby
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« Reply #123 on: August 19, 2024, 09:06:14 » |
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I'm not sure of the actual location of the fringe, but from St Erth 'box towards Plymouth, it's Track Circuit Block (using axle counters) controlled by Roskear. Towards Penzance, it's Absolute Block to Ponsandane and from there, where the line becomes single, it's TCB▸ to the terminus. I think I remember correctly (from more than 50 years ago) that the Down Main line to Ponsandane is track circuited, so that the Penzance signaller can give "train out of section" to St Erth as soon as a down train clears onto the single iine towards Penzance, without having to wait to see the tail lamp as the train passes the actual signal box at Penzance
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Zoe
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« Reply #124 on: August 19, 2024, 17:35:09 » |
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I'm not sure of the actual location of the fringe, but from St Erth 'box towards Plymouth, it's Track Circuit Block (using axle counters) controlled by Roskear. Towards Penzance, it's Absolute Block to Ponsandane and from there, where the line becomes single, it's TCB▸ to the terminus. I think I remember correctly (from more than 50 years ago) that the Down Main line to Ponsandane is track circuited, so that the Penzance signaller can give "train out of section" to St Erth as soon as a down train clears onto the single iine towards Penzance, without having to wait to see the tail lamp as the train passes the actual signal box at Penzance
AFAIK▸ it's still AB from St Erth to the first stop signal controlled by Roskear Junction with a tail lamp camera provided to allow Train out of section to be sent once the train has cleared the section. Unfortunately the Down Main from St Erth to Marazion did not become fully track circuited in the 1974 scheme, the 1974 Sectional Appendix says that for any train heading for Long Rock depot or No 1 siding, the guard must inform the Penzance signalman whether or not the train is complete with tail lamp. I'm not sure why a tail lamp camera was never provided here since when St Erth was switched out late at night it could be quite a restrictive arrangement.
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« Last Edit: August 19, 2024, 21:05:13 by Zoe »
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RailCornwall
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« Reply #126 on: October 29, 2024, 18:57:28 » |
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Mark A
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« Reply #127 on: October 30, 2024, 07:47:34 » |
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Given that Cornwall is the county that in some ways gave the world hard rock engineering & mining, it's surprising that an underpass wasn't a contender for that one. Heights there are somewhat in favour and its something that would have offered a straightforward high throughput walking route between the new down side car park and the bay platform.
Mark
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RichardB
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« Reply #128 on: October 30, 2024, 21:24:08 » |
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Given that Cornwall is the county that in some ways gave the world hard rock engineering & mining, it's surprising that an underpass wasn't a contender for that one. Heights there are somewhat in favour and its something that would have offered a straightforward high throughput walking route between the new down side car park and the bay platform.
Mark
I can tell you that an underpass was seriously considered but ruled out quite a long time ago now.
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Mark A
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« Reply #129 on: October 31, 2024, 16:04:50 » |
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Haha! The first self-funding underpass.
Mark
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Chris from Nailsea
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« Reply #130 on: October 31, 2024, 18:26:07 » |
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I can tell you that an underpass was seriously considered but ruled out quite a long time ago now.
Thank you, as ever, RichardB.
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William Huskisson MP▸ was the first person to be killed by a train while crossing the tracks, in 1830. Many more have died in the same way since then. Don't take a chance: stop, look, listen.
"Level crossings are safe, unless they are used in an unsafe manner." Discuss.
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RailCornwall
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« Reply #131 on: November 04, 2024, 21:13:10 » |
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One of the problems with a subway at St Erth is the watertable. There are an awful lot of water sources in the area which would need 'dealing with' in addition to the perceived 'simple' tunneling under the track. People familiar will remember the extremely large water holding vessel buried as part of the P&R▸ construction, that's now under the feeder road on the northern side of the station buildings.
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Oxonhutch
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« Reply #132 on: November 04, 2024, 21:43:38 » |
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Seems like what I was reacting to has disappeared!
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« Last Edit: November 04, 2024, 21:49:25 by Oxonhutch »
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TonyK
Global Moderator
Hero Member
Posts: 6586
The artist formerly known as Four Track, Now!
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« Reply #133 on: November 14, 2024, 17:02:21 » |
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Seems like what I was reacting to has disappeared!
Disappeared down a hole...
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Now, please!
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