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Post by plasmid on May 24, 2011 23:14:23 GMT
Quoted from the TFL Website...
"We've already carried out a lot of work on the line, and we know this has been disruptive. However, recent closures have allowed us to get a great deal of work done. We're aiming to complete work in June 2011, allowing us to increase the frequency of trains from July 2011. Next year, we'll add even more trains."
Okay, questions, adding more trains in 2012. Is this just specifically for the Olympics or a complete new WTT which will become permanent?
If it is a permanent feature then why not in July 2011 when the upgrade will take effect? I'm confident enough they've had enough years working out a WTT that would provide maximum TPH.
How long did it take to plan the restructure of the Circle Line to Hammersmith...exactly.
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Post by br7mt on May 25, 2011 18:13:18 GMT
Complete new WTT. At the moment 51 trains plus 2 spares are required out of a fleet of 63. When the full upgrade is achieved this rises to 57 trains plus 2 spares. At the moment fleet maintenance is being taken in house and an effort made to get the long term stoppers fixed, in addition the Heavy Overhaul is due to start later in the year.
All in all a bit of a challenge, so best to take the time to get it right.
Regards,
Dan
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Post by plasmid on May 25, 2011 18:30:04 GMT
Okay sounds good, but what do you mean by a "Heavy Overhaul"? Surely they haven't reached mid-life crisis already?
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Post by br7mt on May 25, 2011 20:29:09 GMT
Most fleets receive a Heavy Overhaul every 9 years, normally involves stripping down traction motors, bogies etc and giving them a thorough clean, inspection and carry out rectification works where required so that they will last another 9 years. In the case of 96TS the fleet has been running with the 'wick turned down' since they entered service, mainly due to the historical issues surrounding the signalling used when the JLE was opened. This also means they have run a lot less miles in the period since they entered service.
Basically this means it has been possible to run further without compromising reliability, although a few items such as dampers have been changed as they were showing signs of wear.
Regards,
Dan
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Post by jardine01 on May 26, 2011 15:24:48 GMT
Dan- You say the motors have been turned down since the line opened now its TBTC am sure they are on full power now unless its just them using max throttle out of the station which makes them look like they are faster. I know when they first start off i would say power is the same but at higher speeds there seems to be more oomph.
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Post by plasmid on May 26, 2011 18:08:59 GMT
Dan- You say the motors have been turned down since the line opened now its TBTC am sure they are on full power now unless its just them using max throttle out of the station which makes them look like they are faster. I know when they first start off i would say power is the same but at higher speeds there seems to be more oomph. I'm sure you've been told before...the power isn't limited any more under TBTC, however the 96ts will only run full wick if it is late or there are delays. With the new WTT due out in July the trains will be required to reach the destination in a shorter amount of time and the onboard computers will determine what speed is necessary to reach the target on time. You already have a Thread on performance.  |
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Post by br7mt on May 27, 2011 22:42:04 GMT
Right, I'll try and remember what I was told about 96TS traction!
When in TBTC mode the traction equipment gets a higher acceleration rate (full performance). Once the line is completely in TBTC mode there is another traction performance upgrade (enhanced performance) that basically means you can accelerate at this higher rate for longer. This mode will also introduce regenerative braking.
95TS will also get a similar traction performance upgrade, which I have seen in action at Highgate.
Regards,
Dan
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Post by Deleted on May 28, 2011 12:37:04 GMT
My understanding is that the performance increase is only in sustaining the acceleration for longer (i.e. a higher top speed).
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Post by plasmid on Jun 23, 2011 23:54:03 GMT
They are geared for 75mph aren't they? It would be interesting to know what they will be limited to though.
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Post by jardine01 on Jun 24, 2011 6:37:32 GMT
I think they are limited to 100kph 62mph
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Post by trc666 on Jun 24, 2011 12:03:32 GMT
Highest line speed is 55mph (88½ km/h) isn't it?
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Post by jardine01 on Jun 24, 2011 15:02:50 GMT
I don't know for certain but I am sure the maxium line speed is 62mph on the Jubilee line although very few trains actually reach this speed. Trains can do 62mph between London Bridge and Bermondsey and Neasden to Wembly park I think. Now its TBTC I don't really know if the limits have changed or not?
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Post by Deleted on Jul 4, 2011 0:49:38 GMT
The maximum target speed seems to have been around 57 mph ever since TBTC started. In most instances a lower target speed or speed restriction or braking on approach to a platform comes in before the train can get anywhere close to 57.
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Post by traindudeman12 on Sept 11, 2011 19:59:40 GMT
how do you get the sim for it
?
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Post by jardine01 on Sept 12, 2011 6:21:27 GMT
Now the whole line is in TBTC has this enchanced traction upgrade taken place? Also is regenitive braking now used?
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Post by br7mt on Sept 12, 2011 8:55:16 GMT
Regen is now enabled and enhanced traction is being rolled out. You will only notice the latter when the train is near empty, so the west end of the line off peak.
Regards,
Dan
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Post by jardine01 on Sept 12, 2011 16:29:47 GMT
what stations will the Preformance be uped in ( Which part of the West end of the line) Also will this mean trains are quicker off the mark than present?
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Post by Deleted on Sept 12, 2011 22:20:20 GMT
"I don't know for certain but I am sure...." A great quote  |
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Post by br7mt on Sept 19, 2011 17:09:20 GMT
what stations will the Preformance be uped in ( Which part of the West end of the line) Also will this mean trains are quicker off the mark than present? It is not station specific, traction performance is only enhanced when the train is running with a low passenger load. The philosophy is that this allows it to return to the central core much quicker (as allowed by the TBTC signalling). Hence my suggestion that this will occur at the west end of the line as opposed to the east end. I think the acceleration is increased to 1.2 m/s/s but I don't have the curves available at the moment to check. Regards, |
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Post by jardine01 on Sept 19, 2011 17:38:30 GMT
I rode on a train last week between Canary Wharf and North Grenwich it feeled quicker off the mark but not all trains seem to be. What was the acceration rate pre TBTC?
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Post by underground2010 on Oct 9, 2011 13:24:47 GMT
I went past Stratford depot last week and there were trains stabled in every road. How many extra trains are being added to the service?
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Post by Deleted on Oct 15, 2011 12:21:04 GMT
I went past Stratford depot last week and there were trains stabled in every road. How many extra trains are being added to the service? There were 51 in service before the July timetable change. Now it is 57 and the next timetable change in March also uses a max of 57. There are 63 trains in the fleet which has been the same since the four new ones were bought as part of the 7 car project. |
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Post by jardine01 on Dec 10, 2011 20:21:13 GMT
How frequent are trains on Sundays on the Jubilee line? I will be using it on the 29th Dec
Also are trains fast on Sundays or they held up by low target speeds?
It might sound like a slilly question but i do love a good fast run on the Jubilee!
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Post by plasmid on Dec 11, 2011 21:36:37 GMT
Not a clue, presume there won't be many trains as it's the holiday season. And on that basis there shouldn't be a Need for Speed: Underground.
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Post by messiah on Dec 11, 2011 22:24:57 GMT
On a typical Sunday, the Jubilee trains tend to be uncomfortably busy going into the centre, around lunchtime, and packed coming back in the early evening. (Not quite 8.30am weekday packed, but really quite unpleasant enough).
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Post by jardine01 on Dec 12, 2011 15:42:42 GMT
I am going from Westminister to Stratford on Sunday is there any sections which are always fast no matter if you are early or late?
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Post by chrisvandenkieboom on Dec 12, 2011 16:42:12 GMT
What do you mean? messiah; I have never, ever seen a Jubilee line train crammed to the brim... |
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Post by Deleted on Dec 12, 2011 19:45:49 GMT
What do you mean? messiah; I have never, ever seen a Jubilee line train crammed to the brim... How often do you travel on them Chris? I must admit, most of my travel on that line involves packed trains, weekday or weekend. Not nice. |
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Post by chrisvandenkieboom on Dec 12, 2011 19:51:10 GMT
When I'm in London, and usually around peak. The only trains I really had to cram myself in are the 92ts, which are nearly always busy.
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Post by Deleted on Dec 12, 2011 19:57:14 GMT
When I'm in London, and usually around peak. The only trains I really had to cram myself in are the 92ts, which are nearly always busy. You must be getting on totally different trains to me then son! I hate crowds and that's what I generally get when I'm on the Jubbly. Are you over often from Holland? |
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