metman
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Post by metman on Jul 27, 2019 9:04:08 GMT
I love the 1972 stock and long may it continue! Apart from some rough curves it has a reasonably easy life compared with other lines. The trains have just undergone chassis and body works to ensure it is fit for service and it will soon undergo modification as discussed. It is also the last stock in London (probably the mainland) with a Westinghouse brake.
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Post by gals on Nov 25, 2019 1:31:01 GMT
Looking through my notes from various TfL papers, i have noted down the following for the RVAR compliance:
- First wheelchair bay May 2019, last Nov 2020. - First PIS Jan 2020, Last May 2021.
Has anyone seen these wheelchair bays on new trains, are they indeed being introduced slowly?
Also, also news on the PIS...we should see the first in 6-8 weeks now I guess, but I'm wondering if these will be old-style scrolling displays like the Jubilee line or more modern displays like the Class 345s/Overground with the ability to show disruption. Any info? I'm hoping for the latter nowadays.
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Post by goldenarrow on Nov 26, 2019 16:42:13 GMT
gals , I'm not holding out very high expectations for the spec of Passenger Info Systems given that they like the multi use headboards (fitted in the trailer of the single ended unit) are a legislative requirement and will likely be your standard scrolling text ones. After doing a bit of digging, in October this year the DfT granted another exemption up to Dec 2021. A month previously, Mike Brown wrote to Paul Maynard MP: To date there have been no RVAR compliant trains in passenger service to my knowledge, this further exemption notice to me suggests project timeline slippage.
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Post by MoreToJack on Nov 26, 2019 17:18:28 GMT
Correct, no Bakerloo line sets are RVAR compliant are the moment, in service or otherwise. Work continues, but this far it has just been life extension works.
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Post by tjw on Nov 26, 2019 17:38:52 GMT
Correct, no Bakerloo line sets are RVAR compliant are the moment, in service or otherwise. Work continues, but this far it has just been life extension works. How many stations on the Bakerloo are fully accessible? I thought it was a no go zone for wheelchair users.
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Chris M
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Post by Chris M on Nov 26, 2019 17:43:29 GMT
There are no stations on the line that are fully accessible to those in a wheelchair, but there are several that are partially step-free (e.g. same-direction interchange is available at Oxford Circus, Baker Street and from Queens Park northwards). RVAR is about much more than just people in wheelchairs though.
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Post by A60stock on Feb 5, 2020 16:54:44 GMT
What is the expected date for the first modified train to enter service? (i.e. DDA compliant).
Are the 72ts going to be refurbished again?
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Post by jimbo on Feb 5, 2020 19:02:26 GMT
What is the expected date for the first modified train to enter service? (i.e. DDA compliant). Are the 72ts going to be refurbished again? Papers for the 2020/25 TfL Business Plan show that the Bakerloo line expects Siemens trains between 2027 and 2030, subject to funding, but the 72TS will require life extension works 2024-27 in any case.
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Post by A60stock on Feb 7, 2020 16:45:04 GMT
I mean the addition of in car DMIs, which i was under the impression, would be done before 2024
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Post by ruislip on Feb 21, 2020 22:08:36 GMT
Even though I finally got to travel on the B'loo this past week, I feel that they are the dungiest trains on the network.
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Post by spsmiler on Feb 25, 2020 22:53:53 GMT
This tweet may be of interest
As an aside, I had a fluorescent tube (in a room at home) fail a few days ago - I replaced it with a LED tube in mere seconds. I had to replace the starter too, but that came with the tube.
I was very surprised by the difference in the light - it was a far greater improvement than I had ever imagined possible.
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Post by jimbo on Feb 25, 2020 23:39:34 GMT
The efficient LED lighting releases energy for the passenger info systems to be fitted, etc. Presume LED lights also have longer life to cut maintenance costs.
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Post by crusty54 on Feb 26, 2020 5:09:55 GMT
Putting LED lighting into a train that is almost 50 years old is not a simple plug and play exercise.
The power supply is not stable and some of the cabling must be worn out.
This work was tendered several years ago.
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Post by dm1 on Feb 26, 2020 8:10:34 GMT
This tweet may be of interest As an aside, I had a fluorescent tube (in a room at home) fail a few days ago - I replaced it with a LED tube in mere seconds. I had to replace the starter too, but that came with the tube. I was very surprised by the difference in the light - it was a far greater improvement than I had ever imagined possible. Presumably having done one, the rest will be a lot cheaper and faster since they know more or less how to do it now (excluding variation between trains)
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Tom
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Post by Tom on Feb 26, 2020 9:22:40 GMT
The efficient LED lighting releases energy for the passenger info systems to be fitted, etc. Presume LED lights also have longer life to cut maintenance costs. LED lights are definitely needed - almost every Bakerloo train I get on has at least one (usully several) tubes out. It's clear that the scoring model based on ambience in the days of Metronet has been long forgotten.
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Deleted
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Post by Deleted on Feb 26, 2020 19:43:10 GMT
Would this be the unit that has been out of service for some time, ex-collision repair - 3238-4238-4338-3338 ?
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Post by philthetube on Feb 27, 2020 8:49:41 GMT
I wonder if something is being done to prevent the loss of lighting over rail gaps, that would make it a bigger job.
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Post by underover on Feb 27, 2020 17:30:21 GMT
Would this be the unit that has been out of service for some time, ex-collision repair - 3238-4238-4338-3338 ? It is indeed. Repaired at acton, then had the life extension work done, then LED mod I believe.
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Post by grumpycat on May 6, 2020 19:01:50 GMT
It does interest me when will the 72 stock be replaced since im prerty sure if it goes on any longer that they will be in pretty bad condition as if so apparently they would be gone by 2030s time which will make them 60 or more
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metman
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Post by metman on May 8, 2020 6:37:51 GMT
The stock has a relatively easy life by underground standards and has just had a load of work done to improve it. Further modifications are planned. Don’t be fooled by their age, they are good solid trains, they don’t make them this this anymore.....
It won’t surprise me if they reach 60 years old!
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class411
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Post by class411 on May 8, 2020 8:21:46 GMT
Putting LED lighting into a train that is almost 50 years old is not a simple plug and play exercise. The power supply is not stable and some of the cabling must be worn out. This work was tendered several years ago. I wonder if something is being done to prevent the loss of lighting over rail gaps, that would make it a bigger job. Unstable power supplies, including drop-outs caused by rail gaps should not be a problem for LED lighting. Modern power supplies can work seamlessly over a wide range of voltages, and judicious use of capacitors can keep the lighting going for many seconds with little cost in money or space. Of course, this assumes that the tubes are actually low voltage. If they were daft enough to use (or could only source) 'direct' replacement tubes - i.e. ones that operate it the same voltage as those they are designed to replace, they could have problems.
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North End
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Post by North End on May 8, 2020 9:19:46 GMT
The stock has a relatively easy life by underground standards and has just had a load of work done to improve it. Further modifications are planned. Don’t be fooled by their age, they are good solid trains, they don’t make them this this anymore..... It won’t surprise me if they reach 60 years old! Plus they’ve had the benefit of ample spares availability, first in the form of the 72Mk1 stock off the Northern, then from the 67 stock of the Vic. I’d say given current events it’s now highly likely the 72 stock will reach 60. It does make me smile hearing everyone speak of how good the 72 stock is. On the Northern those staff who remember them will roll their eyes when the “72s” are mentioned, with everyone without exception having their horror stories to tell, particularly in respect of brakes where everyone had the experience of a train being okay for nine stops and then going haywire on the tenth and nearly causing an overshoot. By comparison you’ll never hear anyone complaining about 59 stock. How much of the Northern’s issues were down to maintenance is a matter for conjecture, and no doubt some of these issues have been cured over time. However I agree with the general sentiment - just to have lasted to the age they already are means there must be something good about them!
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Post by PiccNT on May 8, 2020 10:30:16 GMT
I remember waiting patiently at Mill Hill East on the first day of the 72's (not sure if that's a possessive or plural). An extremely exciting day. I also seem to remember that on the Mk1, initially you could drop the handle in Rheo 1 and hold at any speed without it exhausting the train line air. They modified this a short time after. Or is my memory deceiving me!
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Post by Dstock7080 on May 8, 2020 10:50:54 GMT
I also seem to remember that on the Mk1, initially you could drop the handle in Rheo 1 and hold at any speed without it exhausting the train line air. They modified this a short time after. Or is my memory deceiving me! C Stock were the same, until modified with the ‘deadman cut-out switch’, although called something rather irreverent by crews!
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Tom
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Post by Tom on May 8, 2020 12:16:11 GMT
Ah yes, the 'other' FIS!
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Post by jimbo on May 9, 2020 1:12:47 GMT
The 2016/17 base business case for a new fleet for four lines was compared against a "Do Minimum" case of a deferred and de-scoped "Austerity" upgrade package in the late 2030s and early 2040s providing only a one-for-one replacement of the current fleet, or a 15 years delay, which would require a short to medium term programme of expenditure to maintain the existing fleets' safe and reliable service until replacement. However, the 2018/19 Business Case was updated to now compare with a "Do Nothing" case which no longer assumed that investment funding becomes available. Expenditure to maintain the existing fleet's safe and reliable service could therefore continue into the long-term. With no service increase to meet growing demand, and therefore growing congestion, this option would result in negative passenger benefits, revenue loss, and increased operating expenses. In the event the Piccadilly line train order was placed, but the "Do Nothing" case may now apply to the Bakerloo, resulting in an ageing train fleet which could rival achievements on the Isle of Wight with its current operation of 1938 tube stock.
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Post by countryman on May 9, 2020 7:44:28 GMT
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Post by Dstock7080 on May 9, 2020 8:09:16 GMT
Tom is referring to a FIS Fault Islolating Switch, on pre- ‘72 and C Stock found in the middle of trains at the coupling point to divide a train electrically. On ‘72 and C Stock this was conveniently relocated into the leading cab. The ‘other’ FIS was named the ‘F*** It Switch!
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Post by t697 on May 9, 2020 10:38:22 GMT
Tom is referring to a FIS Fault Islolating Switch, on pre- ‘72 and C Stock found in the middle of trains at the coupling point to divide a train electrically. On ‘72 and C Stock this was conveniently relocated into the leading cab. The ‘other’ FIS was named the ‘F*** It Switch! I seem to recall that the FIS was configured specifically so you didn't need to go to the middle cab. You worked it at the active cab to isolate the front unit or the rear unit alternately until the mcb or fuse stopped tripping and the train would now operate, typically with half traction.
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Post by Dstock7080 on May 9, 2020 12:28:28 GMT
I seem to recall that the FIS was configured specifically so you didn't need to go to the middle cab. You worked it at the active cab to isolate the front unit or the rear unit alternately until the mcb or fuse stopped tripping and the train would now operate, typically with half traction. As I tried to indicate 1972 and C Stock did have the FIS in the cab and didn’t require going to the middle to operate. On pre-‘72/C Stock the FIS were not provided in every cab and required the driver to locate it away from the leading cab. On CO/CP Stock the notes say: “FIS ‘A’ cabs only, when open interrupts the control train wires (including the overload relay and MG set and overload relay trip wires) and the compressor synchronising wires immediately behind the auto-coupler on the car concerned”. On R Stock the notes say: “FIS is located at the ‘D’ end of the 23xxx non-driving motor car and is situated under the longitudinal seats adjacent to G door No.2 side. FIS on cant-rail and red star on roof.”
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