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Post by jamesb on Dec 24, 2011 8:41:40 GMT
ho ho ho and Merry Christmas...
I was wondering if anyone can tell me how the new signalling system on the victoria line works, or how it differs to the old one?
Is it now up and running?
I saw that the new emergency stop plunger has been commissioned at some stations..
There is one driver who sounded exasperated on Thursday night, repeatedly asking everyone to 'keep absolutely nothing it the doors, no shopping, no bags, nothing' and would occasionally say 'thanks you obstructing the doors you s..' and then the intercom would cut out. But to be fair to the driver, it worked.. we never actually had any door problem. However one male passenger punched the speaker in frustration!
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Post by chrisvandenkieboom on Dec 24, 2011 10:36:07 GMT
Keep nothing in the doors has something to do with the sensitive edge ( link) |
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Post by jardine01 on Dec 24, 2011 13:13:07 GMT
I belive the new signaling is up and running between Walthamstow Central and Finsbury Park.
However correct my if I am wrong. I think the rest will be turned on in 2012. I feel sorry for the drivers having to say this it must be a nightmare for the driver when he cannot depart.
The central line suffers from the same problem. There should be a fine for people who delibratly try and obstruct the doors!
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Post by eurostarengineer on Dec 24, 2011 13:21:19 GMT
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Post by londonstuff on Dec 24, 2011 14:35:35 GMT
Not sure if I've asked this before but will there be conventional red and green aspects with the new system when the new system is switched on completely? I only ask because there are some extremely new and bright looking signals at, e.g. Warren Street southbound. That said, I haven't been to the northern extremities since the signalling was switched on there.
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Deleted
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Post by Deleted on Dec 24, 2011 15:19:40 GMT
At the "northern extremities", new bright LED-type signals [still red and green] have been in use since they switched over to the new system. These are now located much lower, sort of nearer the platform level, just before the start of the tunnel. Presumably these will also be used across the line once the upgrade is complete?
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Post by Deleted on Dec 24, 2011 16:06:20 GMT
These are also on the right hand side of the line - matching the position of the driver, so not unexpected. What did surprise me yesterday morning was that at Walthamstow Central the signal went blue rather than green! What's the meaning of that aspect?
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Post by chrisvandenkieboom on Dec 24, 2011 16:12:19 GMT
I think blue is the same as green.
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Post by Deleted on Dec 24, 2011 17:09:04 GMT
I think blue is the same as green. Blue is the new White ie must not proceed in Protected Manual |
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Post by superteacher on Dec 24, 2011 18:38:13 GMT
These are also on the right hand side of the line - matching the position of the driver, so not unexpected. What did surprise me yesterday morning was that at Walthamstow Central the signal went blue rather than green! What's the meaning of that aspect? At some stations they are on the left and right! |
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Post by jardine01 on Dec 24, 2011 22:29:12 GMT
Will trains be allowed to Drive in Protected Manual on the victoria line when the new system is fully up and running?
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Post by superteacher on Dec 24, 2011 22:33:00 GMT
Will trains be allowed to Drive in Protected Manual on the victoria line when the new system is fully up and running? Apparently yes. |
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Post by chrisvandenkieboom on Dec 24, 2011 22:38:58 GMT
Will likely be standard practice on Sundays, because T/Ops would still need to be able to drive it in case of an ATO failure...
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Post by superteacher on Dec 24, 2011 22:46:17 GMT
Will likely be standard practice on Sundays, because T/Ops would still need to be able to drive it in case of an ATO failure... Maybe like the Central line, although that only happens on the mainly above ground sections. I'm not sure if such an arrangement exists on the Jubilee. |
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Post by tecchy on Dec 24, 2011 23:58:56 GMT
The Vic has enough 'manual driving' because of the Seven Sisters -> Northumberland Park Depot staff trains which are driven in protected manual. This means the manual driving can be done on most duties.
Some signals are co-acting so will be on both sides. As sometimes the cab end panels do block signals at certain locations.
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Post by jardine01 on Dec 25, 2011 12:13:53 GMT
Merry Christmas everyone!
I think the Jubilee line just drives in PM in sidings and depots and out of service.
However I think some Manual driving exists between Wembly Park and Stanmore sometimes as the train was very lesiurly stopping at the station and seemed to coast its way in to the platform.
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Post by jamesb on Dec 25, 2011 18:36:21 GMT
how does the new signalling work? is it more similar to the central line or the jubilee?
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Post by jardine01 on Dec 25, 2011 18:51:30 GMT
I would say it is more central line style the Jubilee line is moving block i think DTG is fixed block
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Post by trc666 on Dec 26, 2011 18:02:23 GMT
Some signals are co-acting so will be on both sides. As sometimes the cab end panels do block signals at certain locations. Kings Cross St. Pancras southbound is a perfect example of this. Two 3-aspect signals either side of the track, the one on the left is a co-acting signal. The original headwall signal has been blanked off. |
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Post by Deleted on Dec 27, 2011 10:04:45 GMT
I had thought the new signalling has been turned on and old removed from Walthamstow to Highbury and Islington. There are a few more closures planned before the Olympics... Anyone know how much is of the signalling upgrade is planned to be completed before the opening ceremony?
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Rich32
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Post by Rich32 on Dec 28, 2011 8:15:44 GMT
I had thought the new signalling has been turned on and old removed from Walthamstow to Highbury and Islington. There are a few more closures planned before the Olympics... Anyone know how much is of the signalling upgrade is planned to be completed before the opening ceremony? No, it's Walthamstow - King's Cross. The last closure covered Finsbury Park to King's Cross. AFAIK the 4 3 closures planned in the new year will complete the project, with a possible 1 or 2 closures in the autumn for any snagging/adaptations that are required. |
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Post by Deleted on Dec 28, 2011 18:41:22 GMT
Thanks Rich32
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Post by Deleted on Feb 8, 2012 11:47:25 GMT
New signalling was commissioned down to Oxford Circus at the weekend.
As stated by Rich, there are 2 more closures to complete the mainline and 1 to do bi-di on the depot roads, all programmed to be prior to the Olympics.
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Post by Deleted on Feb 8, 2012 19:14:30 GMT
Traffic Cuircuklar No.6 (2012) states this renewal limit is Green Park.
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Post by Deleted on Feb 9, 2012 10:36:12 GMT
Traffic Cuircuklar No.6 (2012) states this renewal limit is Green Park. Green Park is controlled from the Oxford Circus equipment room, so they are both right in a way!  The limits of the replaced areas are now: FX406 Green Park Starter is the first signal that has not yet been replaced on southbound A1524 Green Park Starter is the first replaced signal on the northbound. |
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Post by londonstuff on Feb 19, 2012 23:21:05 GMT
How is the signalling upgrade going?
I only ask because I've used the Vic line quite a lot recently and although the speed of trains seems quick I've not yet seen any stations with the blue aspect showing and the red aspect seems to show for much longer after a train has departed than I'd expect - in fact they seem to stay red until well after the next train has entered the platform. I know this is a generalisation but seems to happen much more often than with the old signalling system.
When will the new timetable be introduced?
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Post by Deleted on Feb 20, 2012 9:27:33 GMT
How is the signalling upgrade going? I only ask because I've used the Vic line quite a lot recently and although the speed of trains seems quick I've not yet seen any stations with the blue aspect showing and the red aspect seems to show for much longer after a train has departed than I'd expect - in fact they seem to stay red until well after the next train has entered the platform. I know this is a generalisation but seems to happen much more often than with the old signalling system. When will the new timetable be introduced? The reason signals are always red until the next train has entered the platform is that the station starter signals are approach controlled. This means that when the train enters the berth track circuit, a timer starts. When the timer expires (think these are in the order of 10-20s, depending on track circuit length), the starter signal may clear, providing the track ahead is also in a state to allow it to do so. This is in order that a train entering a platform will always see a red aspect, and ATP indications to the operator will indicate the station is to be stopped at. The ATP also gives protection against station overruns in this configuration. Believe the new timetable will be introduced in May. |
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Ben
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Post by Ben on Feb 20, 2012 11:17:32 GMT
Thats interesting. It seems slightly counter-intuitive to have approach controlled signal aspects on a moving block railway, but using it as a way to force a stopping pattern makes sense. Can the speed control be switch out if, say, the platform/station is closed/non stopped? How comes the stopping pattern of the train is combined with track occupancy? Would have thought the main benefit of a moving block system is that they can be safely segregated. Forgive me if this is an silly question!  |
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Post by Deleted on Feb 20, 2012 14:08:50 GMT
Thats interesting. It seems slightly counter-intuitive to have approach controlled signal aspects on a moving block railway, but using it as a way to force a stopping pattern makes sense. Can the speed control be switch out if, say, the platform/station is closed/non stopped? How comes the stopping pattern of the train is combined with track occupancy? Would have thought the main benefit of a moving block system is that they can be safely segregated. Forgive me if this is an silly question! Firstly, the DTG-R system is not moving block, it is fixed block. Within the interlocking, the approach control will switch off if the platform is set to non-stop. |
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Post by Dstock7080 on Feb 20, 2012 17:00:02 GMT
WTT34 supposed to be introduced Sun 22 April.
"The off-peak central area service frequency has been increased to 24 trains per hour.
Mondays to Fridays:
The peak central area service frequency has been increased to 30 trains per hour.
Saturdays and Sundays:
The Northumberland Park Depot reversing train has been removed from the weekend off-peak service pattern."
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