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Post by Deleted on Jan 21, 2007 20:02:33 GMT
I took the Vic today and when my train was pulling up, I was pleasantly surprised to see the t/op mucking around with the levers!
Is this the norm on Sundays to keep the t/ops up to scratch?
I noticed some unusual braking inside the tunnels but other than that, the t/op did a good job doing last-moment hard braking to bring the train to a perfect stop. (If only we had the same on the SSLs! ;D)
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Post by Deleted on Jan 21, 2007 20:59:26 GMT
The train would have been in ATO - the manual operation of the 1967 stock is restricted to a very slow speed. The driver can use the CTBC to alter the effect of the ATO, if need be. The hard braking is normal with the Vic ATO, normally helped by an emergency brake application by the Train Op. This is because the monitors were moved at one point, and the train would tend to pass them ever so slightly.
The Central uses manual driving on a Sunday, but only on open sections. Beneath ground is ATO all the time.
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prjb
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Post by prjb on Jan 26, 2007 23:51:21 GMT
Just as an aside, there are no plans to implement manual driving (for maintaining skills) when the new stock arrive too.
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Post by Tubeboy on Jan 26, 2007 23:56:51 GMT
Must be awful being a T/op on the Vic, no open sections, plus ATO. Makes the ticket barriers exciting. And to think at one time, they got an enhanced rate of pay, well deserved as well! ;D
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Post by Deleted on Jan 27, 2007 0:51:35 GMT
Thanks for the replies! Haha Tubeboy!
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Post by Deleted on Jan 27, 2007 6:45:37 GMT
Just as an aside, there are no plans to implement manual driving (for maintaining skills) when the new stock arrive too. I think that is a good decision. Many metro crashes in the last few years have been caused by drivers unfamiliar with manual driving on what are usually ATO driven lines. Thus it is best to either limit manual driving to very slow speeds on these systems (e.g Victoria Line), or to allow drivers sufficient familiarity with manual driving (e.g at all off-peak times in Paris).
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Post by tubeprune on Jan 27, 2007 11:43:46 GMT
Just as an aside, there are no plans to implement manual driving (for maintaining skills) when the new stock arrive too. I can see why it isn't allowed on the 67TS - because the ATO system isn't designed for it. However, it is available in the new DTG-R system and I think it should be used to allow crews to maintain skills and interest at suitable times of day. It would also, perhaps, prevent the buffer stop collisions which they had in NPD due to drivers forgetting to stop in SM.
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Post by Deleted on Jan 27, 2007 16:45:34 GMT
Yes, the inability to drive a 1967 on the Vic manually at anything other than very slow speed has caused numerous lengthy delays, especially when passing through a failure section. It would also have relieved the occasional tedium !
Still not being able to do it on the 2009's sounds like an opportunity lost !
The Vic is very tight times wise though, any manual driving would need to have been able to keep up with the t/table.
My friend on the Central can drive manually throughout and improve upon ATO's maintenance of the t/table ;D ;D
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Post by Deleted on Jan 27, 2007 20:02:30 GMT
Just as an aside, there are no plans to implement manual driving (for maintaining skills) when the new stock arrive too. Echoing the others, I think this is a Bad Idea. I'm sure that there will be times when the ATO function is not available but the ATP function is fully operational, allowing CM driving. Deliberately choosing not to train drivers to use the system sounds like an opportunity lost. If the problem is finding a time of day to do it, why not simply allow it until 0600 and after 2100 on weekdays and before 0800 and after 2000 on weekends. This allows the ATO to do its job during the day and allows the T/Ops to learn a skill that may save the line's bacon.
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Post by Deleted on Apr 8, 2007 22:13:12 GMT
What some ops do is to move the TBC, pretending to drive... it looks odd to the trained eye, but to the unknown, is quite normal.
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Post by Deleted on Apr 9, 2007 13:25:49 GMT
To the best of my recollection, the interlocking of the CTBC will not allow a motoring position to be selected, whilst the selector reverser key is in Auto. The driver can however override the ATO motoring and braking by selecting any EP brake poition or emergency brake.
(remember the CTBC handle moves the opposite way to any other stock - it still moves clockwise, but you push the handle away from you to motor and towards you to brake ... I think that right ... all that D stock has made me forget exactly how other stocks work ..but i remember a 67 was different to the rest !)
Whilst it is generally the case that many 67's will slightly overshoot requiring an emergency application, an astute driver will know very early during the approach that the train is approaching too fast and will use more gentle ep brake applications to bring the train to a halt at the correct position.
It is ocassionally the case that a particular train consistently stops short of the monitors. officially the train will stop, the driver will select coded manual with the reverser selector key and notch up to the monitors. However with a little experience, the driver can move the CTBC and selector reverser keys at lightening speed, provided the train is at less than 22mph and take over all the motoring and braking functions, again to bring the train to a halt at the correct location.
Since most of these "handle movements" take place in the platform area, it may give the illusion the driver has been driving manually throughout.
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prjb
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Post by prjb on Apr 9, 2007 22:47:41 GMT
Just as an aside, there are no plans to implement manual driving (for maintaining skills) when the new stock arrive too. Echoing the others, I think this is a Bad Idea. I'm sure that there will be times when the ATO function is not available but the ATP function is fully operational, allowing CM driving. Deliberately choosing not to train drivers to use the system sounds like an opportunity lost. If the problem is finding a time of day to do it, why not simply allow it until 0600 and after 2100 on weekdays and before 0800 and after 2000 on weekends. This allows the ATO to do its job during the day and allows the T/Ops to learn a skill that may save the line's bacon. Just to be clear - I said there are no plans to alow manual driving for maintaining driving skills. Full Protected Manual and Restricted Manual modes will be available at all times, it's just the drivers (under current plans) will not have driving days the like of which we see on the Central.
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Post by Chris M on Apr 9, 2007 23:56:18 GMT
Will the 2009 stock allow "driving days" à la the Central should the plans change, or a future management team see a benefit in introducing it?
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Post by prjb on Apr 10, 2007 18:30:54 GMT
Will the 2009 stock allow "driving days" à la the Central should the plans change, or a future management team see a benefit in introducing it? Yes, very much so. Which is why I worded my post that way. It is ultimately a line decision rather than an upgrade one, so we supply the facility and they do with it what they will.
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Post by Deleted on Apr 10, 2007 21:11:28 GMT
Just to be clear - I said there are no plans to allow manual driving for maintaining driving skills. Full Protected Manual and Restricted Manual modes will be available at all times, it's just the drivers (under current plans) will not have driving days the like of which we see on the Central. Good. But I still think that LU ought to make use of the facility as provided.
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Post by prjb on Apr 12, 2007 20:14:53 GMT
It is purely a line decision, they will have the option. It would be difficult to maintain timetabled running in PM unless your drivers are very, very good at following the profile.
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Post by Deleted on Apr 12, 2007 20:20:55 GMT
If the Central Line drivers could do it back when WTT64 crashed the control system, I don't see why the Victoria Line drivers can't do it. I do agree though that it is up to the line management, who might be persuaded into understanding that the poor T/Op at the front of the train needs to have something to occupy his time - ATO has posted in the past about how he occasionally goes into a fail-safe trance while on the handle (and yes, I mean fail-safe - no risk to anyone at any time).
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Post by prjb on Apr 12, 2007 20:47:23 GMT
IMHO I do not think that the majority of drivers could maintain a Vic line level of service in PM. Lets face it, if they could then we wouldn't be bothering to implement an ATO system at great expense in the first place. You also have to remember that the Vic line drivers are not migrating from a manually driven railway as their Central line colleagues were. We are fully aware of the risk of 'underload' on the drivers and have considered this in the overrall design. Most drivers will tell you that there is an element of auto-pilot involved even in manual driving, you can experience this yourself when on a long motorway journey. It's not that you are oblivious to external stimuli, more that you 'tune out' from peripheral information.
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Post by Deleted on Apr 12, 2007 20:57:05 GMT
IMHO I do not think that the majority of drivers could maintain a Vic line level of service in PM. Lets face it, if they could then we wouldn't be bothering to implement an ATO system at great expense in the first place. I'm not suggesting that they should be expected to do so all the time, nor that such an ability would preclude ATO. All I'm suggesting is that deliberately choosing not to allow them to exercise their skills for exceptional circumstances is a bad idea. You also have to remember that the Vic line drivers are not migrating from a manually driven railway as their Central line colleagues were. Even more reason to ensure that they are fully trained to operate a service (not necessarily the regular service the Vic Line needs, but any service is better than none). I just think it ought to be done on the line instead of in a simulator. We are fully aware of the risk of 'underload' on the drivers and have considered this in the overall design. Most drivers will tell you that there is an element of auto-pilot involved even in manual driving, you can experience this yourself when on a long motorway journey. It's not that you are oblivious to external stimuli, more that you 'tune out' from peripheral information. Of course. But, IMHO the special circumstances of the Vic (i.e. hypercrowded platforms) means that the T/Ops need to be as alert as possible. Having them sit in the driver's seat with the handle stowed simply increases the minor possibility of 'underload', as you call it.
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Post by Oracle on Apr 12, 2007 21:03:57 GMT
From my limited experience at flying with an auto pilot, it does seem that you can indeed 'tune out'. My late father-in-law was an ex-RAF pilot who flew flying boats from 1944 I think to 1951 on and off, and that required constant operation of heavy controls plus navigating by the stars using a sextant! There was an auto pilot system of sorts but the crew preferred manual flying because they had to coe with overwater flights over featureless ocean and it had been known for pilots to literally fly into the sea when they became fazed by the lack of stimulation. I have also done numerous cross-channel flights and when a light plane is trimmed perfectly it will literally fly straight and level with no steering input, just rudder control and over water it is indeed possible to lose your brain as it were staring at the waves from 4000'! I would have thought, most respectfully, that manual driving might prove beneficial in numerous ways for the poor t/ops, but auto mode will always be quicker in normal service as the 'thinking' processes are more efficient.
Reminds me of when the NASA scientists told the first tranche of US spacemen that the Mercury capsule would be completely automatic or controlled from the ground and that all they needed to do was sit and be blasted into space and back again. These top pilots rebelled. They argued, correctly, that they were Astronauts, and the public expected them to fly the spacecraft and get it back down again. Also what if anything went wrong? The 'man' was in charge of the technology, not the other way round.
Finalyl, I asked a DLR 'assistant' or whatever they are now, formerly 'train captain' why she drove manually into Stratford rather than leave it in auto as per the rest of the journey. She replied that there was a need for a very tight turnaround and she wanted to keep her hand in! To me seeing a person at the helm for once was inspiring. Man i/c of machine!
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Post by prjb on Apr 12, 2007 21:17:29 GMT
I'm not suggesting that they should be expected to do so all the time, nor that such an ability would preclude ATO. All I'm suggesting is that deliberately choosing not to allow them to exercise their skills for exceptional circumstances is a bad idea. Whilst not wishing to overly de-skill our workforce, I would hope that the signalling front end (Primary Display Panel or PDP) will make safe operation of these trains in PM, or RM for that matter, relatively easy. Even more reason to ensure that they are fully trained to operate a service (not necessarily the regular service the Vic Line needs, but any service is better than none). I just think it ought to be done on the line instead of in a simulator. Again, the PDP should allow the drivers to do just that - operate a service. I doubt very much that there will be many times when a service disruption would allow for PM driving anyway. If ATO became unavailable for any reason it is highly likely that PM would also become unavailable too. Of course. But, IMHO the special circumstances of the Vic (i.e. hypercrowded platforms) means that the T/Ops need to be as alert as possible. Having them sit in the driver's seat with the handle stowed simply increases the minor possibility of 'underload', as you call it. I see this as a positive advantage. the relatively regular station stops combined with the higher than average customer levels at platforms dictates that drivers attention levels would be higher than say their mainline DOO (Driver Only Operation) counterparts who endure longer runs and less passenger levels. Ultimately though, the line is ATO and even if it was decided to run in PM every Sunday this is not going to help 'underload' experienced by a driver at 18:00 on a Wednesday.
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Post by lightblueleader on Nov 16, 2007 3:31:42 GMT
Lost time running is a major issue for all the lines and for the drivers that can drive and want to finish on time but get stuck behind the deliberately slow b_______! I reckon the ELBLine will be auto all the time, but I hear rumours that running to/from depot will be in auto with the new signalling and not coded manual as at present. (and to/from sdgs?) No regular driving from the driver is not good, just at a time when he is wound up and panicing with a defect and then has to drive manually without safeguards and without being used to it is dodgy. We musn't lose the fundamental skills of the driver cos there will always come a time when the railway needs them.
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Post by Deleted on Nov 16, 2007 22:45:25 GMT
There have been quite a few accidents on metros around the world where trains usually run in ATO, but crashes have then occurred by inexperienced drivers driving manually. There are two ways of getting around this problem:- 1) Allow drivers to manually drive at off-peak times so that they are sufficiently experienced at manual driving. 2) Run ATO all of the time, with manual driving (at times of signalling failure) being restricted to very slow speeds.
Given that the Victoria Line will be running off-peak frequencies of around 20-24tph, and peak frequencies of up to 33tph there is little allowance for a train running late before trains ahead or behind can also become delayed. Given the more variable and longer journey times caused by manual driving, I would go for 2) as being the driving policy of choice for the Victoria Line.
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