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Post by londonstuff on Apr 16, 2011 21:39:29 GMT
There was a sign just inside the tunnel at the southbound headwall at Warren Street with
End of route proving for signal VG12 written on it.
Is this related to the new signalling?
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Tom
Administrator
Signalfel?
Posts: 4,100 
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Post by Tom on Apr 16, 2011 22:00:47 GMT
No, it's a procedure that's been in for about seven years or so now. It allows you to pass a signal failing to clear without securing points.
The positioning of that sign was one of, if not the first job I did in the Design Office!
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Post by londonstuff on Apr 16, 2011 22:06:16 GMT
No, it's a procedure that's been in for about seven years or so now. It allows you to pass a signal failing to clear without securing points. The positioning of that sign was one of, if not the first job I did in the Design Office! I couldn't have placed it better myself  |
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Post by 21146 on Apr 17, 2011 14:51:11 GMT
Isn't it true that the ability to route-prove is lost under TBTC (on the Jubilee Line) and points have, once more, to be secured manually during failures?
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Deleted
Deleted Member
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Post by Deleted on Apr 17, 2011 20:37:14 GMT
If it is true, its a bit of a step backwards. Maybe it isn't so modern after all.
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North End
Beneath Newington Causeway
Posts: 1,769
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Post by North End on Apr 17, 2011 22:28:10 GMT
Isn't it true that the ability to route-prove is lost under TBTC (on the Jubilee Line) and points have, once more, to be secured manually during failures? Quite possibly, but there are other options available for securing, e.g. remote secure, which is a superior method anyway. |
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Tom
Administrator
Signalfel?
Posts: 4,100
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Post by Tom on Apr 18, 2011 8:24:25 GMT
Isn't it true that the ability to route-prove is lost under TBTC (on the Jubilee Line) and points have, once more, to be secured manually during failures? Quite possibly, but there are other options available for securing, e.g. remote secure, which is a superior method anyway. Quite; in fact the southern (i.e. the tube) bits of the Jubilee should have had Remote Securing anyway; it was an original RI requirement for deep-level OPO. Route Proving was never really intended for use other than on trailing crossovers on the Victoria Line; it's use elsewhere was an ops decision made against the advice of others. It is, in it's simplest form, Remote Secure on the cheap. |
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