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| London Underground Turnaround Times 14/01/2014 at 15:11 #53877 | |
TimTamToe
664 posts |
Hi guys and girls With the LU featuring in a number of simulations now, I was wondering in real life what are the minimum turnaround times of the stock at termini stations and if it varies depending on the rolling stock and also does it vary from line to line. Cheers Gareth Log in to reply |
| London Underground Turnaround Times 14/01/2014 at 15:17 #53878 | |
headshot119
4869 posts |
Some depends on the method of turn back as well. Whether it's still done anywhere regularly, however in some places on the LU drivers step back the service. When the train arrives into the platform a TOP will get in the rear cab, set the cab up, then take the train forward from there. This saves the original TOP having to walk the length of the train. In fact stepping back bells where provided in places to alert the new TOP when the former had exited the then rear cab. "Passengers for New Lane, should be seated in the rear coach of the train " - Opinions are my own and not those of my employer Log in to reply The following user said thank you: TimTamToe |
| London Underground Turnaround Times 14/01/2014 at 17:04 #53881 | |
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miker15
50 posts |
The 2012 WTT for the Jubilee line allows 6 to 10 minutes for turn round. Driver walks the length of the train normally
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| London Underground Turnaround Times 14/01/2014 at 19:48 #53888 | |
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MrBitsy
121 posts |
When I was a driver on the underground in the eighties, it also depended on whether you were finishing or not ...
TVSC Link 4 signaller - Temple Meads, Bath & Stoke Gifford Log in to reply The following users said thank you: dwelham313, larsht, kbarber |
| London Underground Turnaround Times 15/01/2014 at 09:58 #53901 | |
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kbarber
1742 posts |
" said:When I was a driver on the underground in the eighties, it also depended on whether you were finishing or not ... In my experience quite a lot of things could be affected by being on a finishing turn... I once timed a train formed of Mk 2 stock at a consistent 108 - 112mph up the WCML, many years before it was cleared for 110mph running (and Mk 2s were never cleared for more than 100). In fact in those days the fast lines were still one long wet spot from London to Crewe. Let's just say the ride was 'lively' shall we?!  More seriously, it used to be the case that drivers stepped back at Fenchurch St during the peaks, allowing a 10min timing between successive departures from each platform (probably about 8 or 8.5 min turnround actually in the platform). I don't know whether it's still done like that, I don't think the timetable is quite as intensive as it used to be. Log in to reply The following user said thank you: TimTamToe |
| London Underground Turnaround Times 16/01/2014 at 18:57 #53940 | |
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metcontrol
227 posts |
In answer to the original question, it depends on whether you are talking minimum reversal time (i.e. that allowed for the Train Operator to change ends) or the timetabled time. The officially allowed turn-round time for any train, company-wide is 4 minutes. This is the maximum permitted from when a train arrives at it's terminus to the time it is ready to depart again. The "4 minute rule" is only observed during late-running or when reversing an additional train at a location. The timetabled reversal time varies at each and every location, and is based more around the timetable/service pattern. For instance, a typical off-peak Metropolitan line train arriving at Amersham may dwell in the sidings for as much as 16 minutes. Watford now averages 9 minutes. Baker Street averages 6-9 minutes. However, certain lines/locations utilise the "stepping-back" of drivers. This means an incoming train is taken straight over by an awaiting Train Operator, and can be ready to depart "almost" straight away. The Victoria Line does this at Brixton in particular - which is how they can achieve sub-4-minute reversals. Last edited: 16/01/2014 at 18:59 by metcontrol Log in to reply The following user said thank you: TimTamToe |
| London Underground Turnaround Times 16/01/2014 at 21:18 #53945 | |
NCC1701
129 posts |
" said:However, certain lines/locations utilise the "stepping-back" of drivers. This means an incoming train is taken straight over by an awaiting Train Operator, and can be ready to depart "almost" straight away. The Victoria Line does this at Brixton in particular - which is how they can achieve sub-4-minute reversals.How long would a given Train Operator have to "step back"? The next train at that platform? Signalman Exeter West & Llangollen Log in to reply |
| London Underground Turnaround Times 17/01/2014 at 15:24 #53964 | |
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TimTamToe
664 posts |
Thanks everyone for your answers about stepping back and miker and metcontrol for the times on the various lines. Metcontrol your info is extremely useful - might try the 4 min ruling when I next give Marylebone a whirl with max failures on! Cheers Gareth ps Keith you really should write a book with all your stories / events of your railway career - never seems to be a dull moment 
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| London Underground Turnaround Times 17/01/2014 at 21:20 #53983 | |
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metcontrol
227 posts |
" said:How long would a given Train Operator have to "step back"? The next train at that platform?Typically, yes this is the most common way of stepping back. The Train Operator brings in a train, shuts down, then walks to the other end of the platform to await the next arrival (usually the 2nd arrival after their original train) at that same platform. But of course there is nothing stopping you increasing the Train Operator's reversal time. It could be that on a high-frequency line the Train Operator steps back more than 2 trains. If the arriving service frequency was every 2 minutes, this still only allows the incoming Train Operator less than 4 minutes to walk to the outgoing end of the platform (given a few seconds to shut down the first train and open up their new train). In this case, it may be that Train Operators step back more than 2 trains. I can only speak for the Met Line where we use it at Aldgate, and there the average time each Train Operator has is 7-10 minutes from bringing a train in to departing with another off the same platform. I won't go into what happens if trains arrive out of timetabled order - that can at times become very confusing. Log in to reply The following users said thank you: NCC1701, TimTamToe |