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-3°C
Dec 10, 2022 22:26:25 GMT
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Post by melikepie on Dec 10, 2022 22:26:25 GMT
This is the temperature forecast for tomorrow. Would trains be running normally or what do you think the predicted effects will be on either LU or NR?
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-3°C
Dec 10, 2022 23:13:08 GMT
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Post by nig on Dec 10, 2022 23:13:08 GMT
This is the temperature forecast for tomorrow. Would trains be running normally or what do you think the predicted effects will be on either LU or NR? Shouldn't be any effect as long as the points heaters are working
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towerman
My status is now now widower
Posts: 2,886
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-3°C
Dec 11, 2022 10:47:57 GMT
Post by towerman on Dec 11, 2022 10:47:57 GMT
They will have probably have run deicing trains on lines that don’t have night tube,and there will be trains booked to de-ice in the night tube timetables.
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-3°C
Dec 11, 2022 16:46:41 GMT
Post by 1018509 on Dec 11, 2022 16:46:41 GMT
National Rail SWR nothing south of Brockenhurst - iced rails.
During the last couple of hours the rain has stopped before that it was raining and freezing on contact with the ground. 3rd. (and 4th.) rail nightmare.
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-3°C
Dec 11, 2022 16:48:56 GMT
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Post by nig on Dec 11, 2022 16:48:56 GMT
They will have probably have run deicing trains on lines that don’t have night tube,and there will be trains booked to de-ice in the night tube timetables. They don't need deicing they only run when snow or sleet is forecast . The point heaters sort all the points out and trains run quite happily in very cold weather it's the snow that stops the current being picked up by the train
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towerman
My status is now now widower
Posts: 2,886
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-3°C
Dec 11, 2022 17:51:00 GMT
Post by towerman on Dec 11, 2022 17:51:00 GMT
They still put the D signs up when temperatures are forecast to be around or below zero.
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Post by ducatisti on Dec 12, 2022 6:48:07 GMT
Northern line not running in the open sections, vic severe delays due to a track fault caused by ice.
Unexpected snow causing problems?
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-3°C
Dec 12, 2022 8:09:09 GMT
Post by xtmw on Dec 12, 2022 8:09:09 GMT
Central line suspended, Epping to Stratford / Woodford via Hainault. Severe delays rest.
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-3°C
Dec 12, 2022 10:42:27 GMT
Post by spsmiler on Dec 12, 2022 10:42:27 GMT
Central line suspended, Epping to Stratford / Woodford via Hainault. Severe delays rest. So where are the trains reversing? btw, now I think about it I realise that I havent heard any trains passing below my house this morning. The snow here is several inches deep and many trees are white with thick snow on their branches, but it has started a slow thaw (10:35 am). If it does not go completely then tonight will be brutally dangerous when the slush freezes. I was going to go out today, with camera, on a journey that includes the Elizabeth line. Because of the strikes my next opportunity will be Thursday.
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-3°C
Dec 12, 2022 20:09:35 GMT
Post by xtmw on Dec 12, 2022 20:09:35 GMT
Central line suspended, Epping to Stratford / Woodford via Hainault. Severe delays rest. So where are the trains reversing? btw, now I think about it I realise that I havent heard any trains passing below my house this morning. The snow here is several inches deep and many trees are white with thick snow on their branches, but it has started a slow thaw (10:35 am). If it does not go completely then tonight will be brutally dangerous when the slush freezes. I was going to go out today, with camera, on a journey that includes the Elizabeth line. Because of the strikes my next opportunity will be Thursday. My guess would be they tipped out at Stratford and ran empty to Leytonstone to reverse? Just a guess, I'm sure a LU official can comment...
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-3°C
Dec 12, 2022 21:00:42 GMT
Post by spsmiler on Dec 12, 2022 21:00:42 GMT
My guess would be they tipped out at Stratford and ran empty to Leytonstone to reverse? Just a guess, I'm sure a LU official can comment... At one time Central line trains could reverse at Leyton - either in the station or even between the tunnel mouth and station (I'm not sure which). But in those days the tracks were configured to allow bi-directional running through what nowadays is the westbound platform because the eastbound platform track was used by locomotives shunting wagons in the nearby goods yard. If trains were running empty from Stratford to Leytonstone I must wonder why. Perhaps the answer is that officialdom wanted the station platforms to have snow clearing before passengers were allowed to use them. If so then it is a sign of the times - said because I can remember using this station 'many years ago' in snowy weather when the snow was not cleared away. btw, I was out in the snow today and found that it was at least 3 inches deep.
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Antje
侵略! S系, でゲソ! The Tube comes from the bottom of London!
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Post by Antje on Dec 12, 2022 21:54:34 GMT
I know different types of snow have different effects on the transport system and skiing (something that the media often overlook for sake of simplicity), but why does the tube network often struggle under snow, and how do other metro systems with top-contact conductor rails cope?
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Post by zbang on Dec 12, 2022 23:30:17 GMT
Some, such as the Washington DC Metro, have covers over the third-rail; others, like the Chicago "L", mount scrapers ahead of the contact shoe.
OTOH if an area seldom gets snow/sleet/freezing rain, there isn't much reason to maintain these sorts of things- TfL wouldn't have RATs (rail adhesion trains) if it wasn't an annual problem.
Somewhat related- Lines using overhead pickup (and with two pantographs per unit) will often run with both pan's up but the first disconnected; that one breaks any ice off the wire while the second picks up the power as usual.
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-3°C
Dec 13, 2022 0:10:27 GMT
Post by xtmw on Dec 13, 2022 0:10:27 GMT
+ it is not something worth investing in for something that happens 3-4 days a year...
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-3°C
Dec 13, 2022 6:31:56 GMT
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Post by Dstock7080 on Dec 13, 2022 6:31:56 GMT
My guess would be they tipped out at Stratford and ran empty to Leytonstone to reverse? Just a guess, I'm sure a LU official can comment... If trains were running empty from Stratford to Leytonstone I must wonder why.
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-3°C
Dec 13, 2022 8:39:26 GMT
Post by jimbo on Dec 13, 2022 8:39:26 GMT
I suppose that means that insufficient trains were available to start up services at the east end of the line.
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-3°C
Dec 13, 2022 14:45:12 GMT
Post by spsmiler on Dec 13, 2022 14:45:12 GMT
Even though we now know about what did not happen at Hainault depot I'm not going to speculate on where / whom blame should be laid but I very much hope that there will be an investigation and the results (albeit not people's names) be made public. In the meantime, I took advantage of yesterday's lack of trains to tweet this: twitter.com/ citytransportin/status/1602416909089394688 Perhaps, from what we now know my comments were ill-informed but the photo was still appropriate for the day. Apologies for it being slightly blurred, I was probably shivering in the cold air.
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Tom
Administrator
Signalfel?
Posts: 4,100
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-3°C
Dec 13, 2022 17:14:22 GMT
Post by Tom on Dec 13, 2022 17:14:22 GMT
Some, such as the Washington DC Metro, have covers over the third-rail; others, like the Chicago "L", mount scrapers ahead of the contact shoe. OTOH if an area seldom gets snow/sleet/freezing rain, there isn't much reason to maintain these sorts of things- TfL wouldn't have RATs (rail adhesion trains) if it wasn't an annual problem. I can remember being in New York (which like Washington, has a protective board over the third rail) in March 2017 when an exceptionally heavy snowfall was predicted and the advice was to stay at home and not travel - despite NYC quite frequently getting snow. Likewise I've known of Stockholm having service disruption during the first day of snow each winter and sporadically through the year with particularly heavy snowfalls. Most LU stock has sleet brushes fitted in advance of the first collector shoe, yet I only observed one train using them yesterday.
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-3°C
Dec 13, 2022 17:54:05 GMT
Post by zbang on Dec 13, 2022 17:54:05 GMT
Covers keep the 3rd rail clear and heaters keep the points clear, but they still have to plow the tracks when the snow gets high enough.
Where used, I also expect that the train stops would need to be cleared and checked. (How much icing can they tolerate and still move properly?)
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Post by t697 on Dec 13, 2022 18:56:12 GMT
Re sleet brushes, they are counter productive if all they achieve is helping remove de-icing fluid!
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Post by stapler on Dec 18, 2022 11:31:15 GMT
I don't think it took LU too much to "sacrifice" the Leyton B entrances. The 1990s were still years of retrenchment. Subsidiary entrances at Epping and Buckhurst Hill were closed at that sort of period with no link road excuse, and Woodford almost so. Nice pic, SPS!
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-3°C
Oct 30, 2023 12:30:58 GMT
Post by spsmiler on Oct 30, 2023 12:30:58 GMT
Even though we now know about what did not happen at Hainault depot I'm not going to speculate on where / whom blame should be laid but I very much hope that there will be an investigation and the results (albeit not people's names) be made public. In the meantime, I took advantage of yesterday's lack of trains to tweet this: twitter.com/ citytransportin/status/1602416909089394688 Perhaps, from what we now know my comments were ill-informed but the photo was still appropriate for the day. Apologies for it being slightly blurred, I was probably shivering in the cold air. Just to say ... my Twitter account has been hacked and all my tweets embedded in web pages here at DD (and anywhere else I've embedded tweets) now show a different name. Many still show the correct Twitter user name in the link below them (as seen above)Edited 6th November - I'm now back online and have changed all the names back to me
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