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WM400
Sept 19, 2007 19:13:15 GMT
Post by happybunny on Sept 19, 2007 19:13:15 GMT
For the first time today I got close to WM400, as I slowed right down and slowly crept up to the signal I expected it to clear it didn't and I stopped right on it expecting it to clear once I had stopped but it still didn't, odd I thought since the signal number indicated it was a draw-up. Then the next signal ahead cleared and a second later WM400 cleared, very odd I thought. I called the LC to report this, that this draw-up signal was defective and he explained it indeed was a draw-up and should clear, but it has always been like that. I felt a bit silly and explained I was new to the District but then thought well if it is a draw up it should act like one, and the associated signal ahead of it certainly should not clear before it does. Surely they should fix it?
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WM400
Sept 19, 2007 19:19:24 GMT
Post by District Dave on Sept 19, 2007 19:19:24 GMT
For the first time today I got close to WM400, as I slowed right down and slowly crept up to the signal I expected it to clear it didn't and I stopped right on it expecting it to clear once I had stopped but it still didn't, odd I thought since the signal number indicated it was a draw-up. Then the next signal ahead cleared and a second later WM400 cleared, very odd I thought. I called the LC to report this, that this draw-up signal was defective and he explained it indeed was a draw-up and should clear, but it has always been like that. I felt a bit silly and explained I was new to the District but then thought well if it is a draw up it should act like one, and the associated signal ahead of it certainly should not clear before it does. Surely they should fix it? It's been fu**ed defective for years and the timing section was removed some time ago as (IIRC) they cannot obtain parts to repair it I'm surprised you were not warned of this - it is one of the signals I always highlight to trainees - it's too easy to 'read through' it to WM4, and wind up against WM400. HTH
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WM400
Sept 19, 2007 19:24:28 GMT
Post by c5 on Sept 19, 2007 19:24:28 GMT
Push Button all three at once, much easier, ;D ;D ;D ;D particuarly if you have been delayed at The Broadway as the Programme Machine has delayed you in, by clearing for the one in the platform early Ealing Common as a sit is indeed knackered! The timing and workings of the PMs are rubbish too
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WM400
Sept 19, 2007 19:28:42 GMT
Post by District Dave on Sept 19, 2007 19:28:42 GMT
Push Button all three at once, much easier, ;D ;D ;D ;D particuarly if you have been delayed at The Broadway as the Programme Machine has delayed you in, by clearing for the one in the platform early Ealing Common as a sit is indeed knackered! The timing and workings of the PMs are rubbish too So - do us poor DR guys a favour JTD... When you're on the Acton desk on dead lates, try to give us a fighting chance of finishing on time. That winds people up more than anything else - especially when we've bust a gut to get through on time and then finish quite a few minutes late. AlanL will no doubt remind of his frustrations about this!
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WM400
Sept 19, 2007 19:31:44 GMT
Post by c5 on Sept 19, 2007 19:31:44 GMT
Its the mornings that are absolute hell! Reversing at Acton sidings and trains from both ends of Ealing Common, and trying to keep as much of it in turn as possible!
I will do my best, in exchange for brekkie from the canteen ;D ;D
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WM400
Sept 19, 2007 19:38:35 GMT
Post by happybunny on Sept 19, 2007 19:38:35 GMT
Hehe I did notice the starter clears at EAB about 2 mins early, I never remember it doing that when I worked on the platform there though. I always wait till time though, even when I am finishing at Acton East (I hate 27 duty ) .... well almost always
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WM400
Sept 19, 2007 19:43:01 GMT
Post by c5 on Sept 19, 2007 19:43:01 GMT
Hehe I did notice the starter clears at EAB about 2 mins early, I never remember it doing that when I worked on the platform there though. I always wait till time though, even when I am finishing at Acton East (I hate 27 duty ) .... well almost always The timing is out and Tubelines (the maintainer) are having trouble "fixing" it, they have changed bits, but to no avail! It does it for about 2 or 3 trains per hour and clears up to 4 mins early!
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Deleted
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WM400
Sept 19, 2007 19:50:23 GMT
Post by Deleted on Sept 19, 2007 19:50:23 GMT
It's been fu**ed defective for years and the timing section was removed some time ago as (IIRC) they cannot obtain parts to repair it your right EC100 does not work due to the power pack operating the inductor rail does not work WM400 i took out of commision as a train and hit a section of the inductor rail damaging it but i believe this had the same problem as EC100 the speed inductor sections are never different its just the FR (frequency relay) which is different as it depends what sort of speed the train should be travelling at its usually 25mph, so if it detects the train going faster then 25 then the signal will not clear nor will it if detects the train going too slow as theres not enough current draw from the coils in the inductor to pick up the FR. the voltage to operate the FR is tiny when it comes from the inductor rail so it has to go through a transformer which thats boosts it to 100v now the reason why most of inductors don't work is because of the power pack failing and having no spares in the stores so they will be eventually removed one by one as i had to remove WM400 inductor a few weeks ago now because of the power pack being faulty. A bit of background for the thread ;D
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WM400
Sept 19, 2007 19:53:14 GMT
Post by happybunny on Sept 19, 2007 19:53:14 GMT
Maybe the signalling equipment is so old, that they don't actually make parts to fix it any more!
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Deleted
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WM400
Sept 19, 2007 19:55:11 GMT
Post by Deleted on Sept 19, 2007 19:55:11 GMT
Maybe the signalling equipment is so old, that they don't actually make parts to fix it any more! Indeed - aetearlscourt has said in the past that the REW often has absolutely no spares whatsoever for some of the equipment still in front-line use. The best example of this was when Metronet raided a bunch of museums looking for parts for the control systems at Earl's Court - apparently they were the best place to find a working example...
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WM400
Sept 19, 2007 19:55:43 GMT
Post by c5 on Sept 19, 2007 19:55:43 GMT
Maybe the signalling equipment is so old, that they don't actually make parts to fix it any more! No. That can't be right ;D ;D ;D ;D A visit to the Musuem perhaps - And I'm not joking ;D
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Deleted
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WM400
Sept 19, 2007 19:56:26 GMT
Post by Deleted on Sept 19, 2007 19:56:26 GMT
Should go back to having a man or two [or three] in a local cabin!
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WM400
Sept 20, 2007 7:40:14 GMT
Post by District Dave on Sept 20, 2007 7:40:14 GMT
Interestingly they not long ago modified EC300 with (IIRC) some 'new technology' to get it working more predictably (Ithink was the explanation). I posed the question then that if they could do it on that one why could the others which are not working at all be similarly modified. Unsurprisingly, I got no response. Oh - sorry - I did - one answer. It comprised a single word 'Pass'. Thanks to TOK for digging up those threads - I knew there was something already about it
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Deleted
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WM400
Sept 20, 2007 23:51:55 GMT
Post by Deleted on Sept 20, 2007 23:51:55 GMT
no dave no modern technology they just removed the inductor circuit completely now you either have to have EC3 cleared first or operate a 4 1/2 sec timing relay to make EC300 clear WM400 the inductor for that is still lying in the 6 foot (i removed it with the ERU back in 2005) and its still lying there all sections are broken this is why no one has raided it for spares it would of been tubelines searching for spares for EC control room as it is THERE room (thank god) not metronet
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WM400
Sept 21, 2007 6:46:48 GMT
Post by District Dave on Sept 21, 2007 6:46:48 GMT
Thanks for that Pat - shows how much you can believe of what you read in the TC!
I well remember you removing the inductor rail for WM400, and I always point out it's current location to trainees to explain why WM400 does not work!
So - let me get this right - if ALL the inductor rails were to be removed/deactivated or whatever and the signals involved were to have a similar timing section installed as is the case with EC300, does this mean that all those would then work to allow trains to approach their associated signals?
If this is the case, is it a massive job? If it isn't, why isn't it done - or are the T/Ops being relied on to be fully aware of the signals in question?
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Deleted
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WM400
Sept 21, 2007 14:52:03 GMT
Post by Deleted on Sept 21, 2007 14:52:03 GMT
no not a massive task its usually just removing the inductor itself and removing the cables from its track disconnection box (TDB) and the inductor and at some point after that the relays would be removed and the other equpiment for the inductor, the new circuitry (what you think is new) has always been there incase the inductor did fail it was there just as belt and braces really so the signal would clear if it was never there and the inductor did fail for whatever reason then the signal would remain at danger
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Deleted
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WM400
Sept 21, 2007 17:10:27 GMT
Post by Deleted on Sept 21, 2007 17:10:27 GMT
These draw up signals are a joke ! Most of them don't work ! WM 400 is by far the worst since WM 4 clears way before WM400 does, it's a real SPAD trap ! When I was new to the line I was warned EC100 didn't work, but that was the only one. As far as I can tell WM230 doesn't work either. I have never managed to get past that until WM23A has also cleared. What is it with WD40A, B & C at Hammersmith, I know there is a speed inductor there, but either they don't clear, or they all clear ...how comes they never just drop off as the train in front departs ? Now EC 300 at Earl's Court .. that stopped working and I seem to recollect Tom of this forum saying it was replaced with a new set up ....why can't they fit this new set up to the rest of them ! Even so now EC300 seems to drop whatever you do ?? This is still a dangerous signal, as it has no repeater for the signal it draws you up to and you can't see EC3 when EC300 clears. Besides what is the point of it ? surely a spad at EC3 wouldn't foul the points anyway ? Is it ever possible to see either of the REC300's at anything other than yellow ?! I once saw EE230 and EE225 both showing green at Gloucester Road, but only after some unfortunate Circle driver had been set back past them both That old favourite EJ100 at Tower Hill seems to be playing up yet again. It had played up, then they sorted it and yet again, it seems impossible to get it to clear whatever speed you approach at ! Mind you I think the speed testing section is too close to it anyway, to have to do the minimum 15mph to get it to clear puts you awfully close to it for stopping if it doesn't clear ! Why on earth do they have minimum approach speeds anyway ? Whats the point of that ! Why do some draw ups clear to green if the signal you are drawing upto is green yet others don't. eg EN360 will be green if EN 36 is green, that seems sensible. But EN 350 remains red and speed checks you (giving a red and green aspect) even if EN35 is green anyway ! My final whinge is, err, i think, FF60 approaching Barking when there is a train in the platform, why do you sometimes get cleared to FF59 (so you can see the train in front) yet other times you get held for eternity at FF60 (where you can't see what's going on). Then sometimes after ages FF60 clears and you move up to FF59, othertimes FF60 eventually clears at the same time as FF59, FF58A and FF58B ... all serving to delay ones already delayed progress ! (is this all just the signaller playing games ?) There ... I feel better for that !!! ;D
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Deleted
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WM400
Sept 21, 2007 17:32:16 GMT
Post by Deleted on Sept 21, 2007 17:32:16 GMT
the only inductors what work where we maintain them (ssl) is EJ100,EE2090 and WC32 (picc)
and remember barking has that nice human interface called a signal operator they usually leave the site in king (auto) working unless they have reversers and stablers but when they do have a reverser or stabling and the next few trains or say upminsters they will instead of pushing the buttons for the signals they will stand up and turn round and flick the king switch down
if a train spad'ed EC3 with a train waiting at EC1 bascially you have locked yourself up as the points will lock everything else out as there is relay called a WLR tom can explain these its a gravity biased relay and can cause headaches
REC300 will only show a green of course if EC300 is cleared before you get to it and of course EC 3 has to be cleared for this to happen the only way this is gonna happen is if the signal operator is in push button on S3 programme machine and not programme or FCFS (first come first serve) mode as in the above modes the signal will only clear when it approach the signal
WD40 abc will again only clear when the route as been selected again all to do with the programme machine being in usually FCFS so when the train comes up to it it will clear WD43 the barons court has got a auto facilty on it and the signal operator usually leaves this in 99% of time except if trains coming out of lillie bridge and need to get over to the picc
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Colin
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WM400
Sept 21, 2007 18:27:30 GMT
Post by Colin on Sept 21, 2007 18:27:30 GMT
As far as I can tell WM230 doesn't work either. I have never managed to get past that until WM23A has also cleared. Correct - it doesn't work. It hasn't worked for all of my 3 and bit years on the District - in fact all three of my I/O's made a point of telling me so it's been like it for a while now ;D ;D Is it ever possible to see either of the REC300's at anything other than yellow ?! They are fixed Yellow's - as is RWP17 at Ealing Broadway. Why on earth do they have minimum approach speeds anyway ? Whats the point of that ! with regard to EJ100 @ Tower Hill, I would suspect this has something to do with proving you are going slow enough to enter the bay road - providing it's clear of course! Why do some draw ups clear to green if the signal you are drawing upto is green yet others don't. eg EN360 will be green if EN 36 is green, that seems sensible. But EN 350 remains red and speed checks you (giving a red and green aspect) even if EN35 is green anyway ! Can't say I've had the pleasure of seeing that one - actually, wouldn't that be a reportable signalling irregularity? My final whinge is, err, i think, FF60 approaching Barking when there is a train in the platform, why do you sometimes get cleared to FF59 (so you can see the train in front) yet other times you get held for eternity at FF60 (where you can't see what's going on). Then sometimes after ages FF60 clears and you move up to FF59, othertimes FF60 eventually clears at the same time as FF59, FF58A and FF58B ... all serving to delay ones already delayed progress ! (is this all just the signaller playing games ?) We've been there before with FF60 - though admittedly some time ago now: www.districtdave.proboards39.com/index.cgi?board=district&action=display&thread=1134054691&page=1
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Deleted
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WM400
Sept 21, 2007 18:43:12 GMT
Post by Deleted on Sept 21, 2007 18:43:12 GMT
REC 300 is not a fixed yellow it will show a green you just gotto get the signal operator to push EC 3 's before you get to REC 300 and you will see it green
the purpose of EJ100 is as coling says its to reduce the speed of the train for the bay road it has no effect with EJ 1 rt1 clear only rt2 (into bay)
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Colin
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WM400
Sept 21, 2007 19:07:15 GMT
Post by Colin on Sept 21, 2007 19:07:15 GMT
I can assure you with absolute cast iron certainty that REC300 and REC300.3 are both fixed yellow's.
Just to be clear, REC300 is just before the Eastbound crosses the line to Olympia; and REC300.3 is located at the entrance to the covered way under Earls Court exhibition centre.
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TMBA
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WM400
Sept 21, 2007 20:07:30 GMT
Post by TMBA on Sept 21, 2007 20:07:30 GMT
As far as I can tell WM230 doesn't work either. I have never managed to get past that until WM23A has also cleared. Correct - it doesn't work. It hasn't worked for all of my 3 and bit years on the District - in fact all three of my I/O's made a point of telling me so it's been like it for a while now ;D ;D They are fixed Yellow's - as is RWP17 at Ealing Broadway. with regard to EJ100 @ Tower Hill, I would suspect this has something to do with proving you are going slow enough to enter the bay road - providing it's clear of course! Can't say I've had the pleasure of seeing that one - actually, wouldn't that be a reportable signalling irregularity? My final whinge is, err, i think, FF60 approaching Barking when there is a train in the platform, why do you sometimes get cleared to FF59 (so you can see the train in front) yet other times you get held for eternity at FF60 (where you can't see what's going on). Then sometimes after ages FF60 clears and you move up to FF59, othertimes FF60 eventually clears at the same time as FF59, FF58A and FF58B ... all serving to delay ones already delayed progress ! (is this all just the signaller playing games ?) We've been there before with FF60 - though admittedly some time ago now: www.districtdave.proboards39.com/index.cgi?board=district&action=display&thread=1134054691&page=1Yep good old FF60 again is playing up as per usual since I first posted about it in December 2005, I was held there to be given all greens into the main at Barking & the the second time I was put into the bay after being held at FF60 for an age Question I thought that the connect radio with the capabilities of finding trains on their screens would have maybe helped and the possibilities of contacting the signalman via connect were working but not today I had to use the SPT to the signalman . weird how some signalmen use the connect and some don't ;D ;D
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Tom
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WM400
Sept 21, 2007 21:20:26 GMT
Post by Tom on Sept 21, 2007 21:20:26 GMT
If this is the case, is it a massive job? If it isn't, why isn't it done - or are the T/Ops being relied on to be fully aware of the signals in question? It is a fairly big job - the next one to go is on the Metropolitan Line at Marlborough Road which I'm due to be testing.
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WM400
Sept 21, 2007 21:30:13 GMT
Post by c5 on Sept 21, 2007 21:30:13 GMT
If this is the case, is it a massive job? If it isn't, why isn't it done - or are the T/Ops being relied on to be fully aware of the signals in question? It is a fairly big job - the next one to go is on the Metropolitan Line at Marlborough Road which I'm due to be testing. What about the one at Lords SB, or is it the one at Marb. Rd I'm thinking of?
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Tom
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WM400
Sept 21, 2007 21:34:55 GMT
Post by Tom on Sept 21, 2007 21:34:55 GMT
the new circuitry (what you think is new) has always been there incase the inductor did fail it was there just as belt and braces really so the signal would clear if it was never there and the inductor did fail for whatever reason then the signal would remain at danger Where the inductors have been replaced (as opposed to being decommissioned) proper 'two shot' timing sections have been installed, replacing the old Delta with JR circuits. I'm not sure if there are plans to do more replacements, but some locations are a higher priority than others.
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Tom
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WM400
Sept 21, 2007 21:36:25 GMT
Post by Tom on Sept 21, 2007 21:36:25 GMT
It is a fairly big job - the next one to go is on the Metropolitan Line at Marlborough Road which I'm due to be testing. What about the one at Lords SB, or is it the one at Marb. Rd I'm thinking of? Marb. Rd - A879.
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WM400
Sept 22, 2007 1:26:12 GMT
Post by tubeprune on Sept 22, 2007 1:26:12 GMT
Where the inductors have been replaced (as opposed to being decommissioned) proper 'two shot' timing sections have been installed, replacing the old Delta with JR circuits. OK Tom, why use a "two shot" timing section when one will do? Surely the one meets the full speed overlap requirements or do you need two for a high speed approach? Also, what's a JR circuit as opposed to a delta loop?
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WM400
Sept 22, 2007 10:22:24 GMT
Post by Harsig on Sept 22, 2007 10:22:24 GMT
Where the inductors have been replaced (as opposed to being decommissioned) proper 'two shot' timing sections have been installed, replacing the old Delta with JR circuits. OK Tom, why use a "two shot" timing section when one will do? Surely the one meets the full speed overlap requirements or do you need two for a high speed approach? Also, what's a JR circuit as opposed to a delta loop? From information I have: Single Shot JR OperationThe purpose of the single shot JR (Timing Relay) is to provide a speed check of a train over a fixed distance between a position detector and a train stop. Provided the speed of the train does not exceed the design speed through the timing section then the timer will complete its time out and allow the signal to clear. If the train is travelling too fast then it will either be brought to rest at the signal or be tripped. Two Shot JR Operation The purpose of the two shot method is to provide a speed check of a train over a fixed distance between two position detectors. Provided the train does not exceed the design speed through the first shot timing section, then the timer will complete its timeout and allow the signal to clear when the second position detector operates. However if the train speed is too fast and the timer has not completed its timeout, the timer operation is termintaed when the second position detector operates which forces the timer to drop out and restart for the second shot timing section. Now it seems to me that the two shot JR operation means that all trains that are travelling at or below the correct speed will find that the signal will clear while the train is at a predictable and consistent distance from the signal i.e. the location of the second Position Detector. If it does not clear at that point then it is not going to clear until the second shot timing has been copmpleted which I would imagine is set up such that the train has to be at or almost at a stand at the signal. Conversely with Single Shot operation the signal could in theory clear when the train is at any point between the position detector and the trainstop depending on just how far below the design speed the train is travelling.
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Deleted
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WM400
Sept 22, 2007 16:14:40 GMT
Post by Deleted on Sept 22, 2007 16:14:40 GMT
Thanks to aetearlscourt and all for their comments on all those District signals I quoted, much appreciated guys ! As for REC300 and REC300.1 I do remain curious as to what the score is with them. I have never seen them at green, so I suppose the question is, If the button for EC3 is pushed in good time and thus shows green, does EC300 ? If EC300 will only clear on approach regardless of the aspect on EC3, then you are past both REC300's before it clears. with regard to EJ100 @ Tower Hill, I would suspect this has something to do with proving you are going slow enough to enter the bay road - providing it's clear of course! You miss my point Colin, I wondered why there was a MINIMUM speed for getting EJ100 to clear, NOT a MAXIMUM speed. In that if you pass the timing section at a speed of betweeen 1 - 14mph it will NOT clear on approach, If you pass at a speed of 15 - 20mph it will clear on approach, above 20mph it wont clear on approach. If it doesn't claer on approach it will clear once your stopped, or virtually stopped at it. (I think they are the speeds, but you get the idea) (when it works, at the moment, it will only clear when you have or are virtually stopped at it) My Question was why the Minimum, coupled with the observation that if you do approach at 15mph you need to be fully alert, because by the time you know it hasn't dropped, you must brake hard and fast ! Can't say I've had the pleasure of seeing that one - actually, wouldn't that be a reportable signalling irregularity? It's always done that, take a look next time you are routed into Platform 1 at Whitechapel when the starter is clear, perhaps you have always assumed the starter has cleared just as you went through the timing section, but you do get a view of the starter long before that as you approach Whitechapel. It doesn't do it on platform 2 though.
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Deleted
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WM400
Sept 22, 2007 17:38:08 GMT
Post by Deleted on Sept 22, 2007 17:38:08 GMT
its because the relay hooked up to the inductor will only work between 15 and 20 mph as there is not enough current draw through the inductor if below 15mph
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