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Post by Deleted on Oct 11, 2011 17:24:48 GMT
I've compiled a list of questions about the central line while spending many hours a week travelling it, if anybody can help with any please do answer!
1. The other day I saw a driver with CCTV footage on the dts display, how is this done?
2. When at timing points or whatever they are called such as LES, does the countdown timer start counting so that when it hits 0 the route will be cleared or what?
3. Also when held at a red signal at places such as LES there is a hiss just after a route has been set, whats this?
4. What positions are there on the master selector switch and which one does the waterloo and city line use?
5. There are stickers above some seats with stuff like EPBIC and DML I know this refers to what equipment is underneath, but can anyone tell me what they stand for?
6. I've seen two trains recently that said they terminated at SWO, what's all this about?
7. Where is the button that must be pressed when a target speed is exceeded?
8. Can the tbc handle be twisted 90 degrees in both directions and will twisting it cause emergency application in ATO?
9. When departing some stations such as HAI after an extended stay the train lurches violently forward when started in ATO and has really jerky acceleration, and no the rail gaps were far ahead of the train when this happened.
Thanks, a long list of questions I know!!!
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Post by chrisvandenkieboom on Oct 11, 2011 18:06:12 GMT
1; I think it was an inductive loop.
4; Master Selector Switch? If you mean the evolved CTBC - it always has the same positions, Emergency, EP Application, Service Lap, (another few things), off & release, shunt, series, parallels. This order may not be correct. corrected by superteacher, not right.
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Post by causton on Oct 11, 2011 19:02:04 GMT
3; that will be the points changing - air is released from the points as the rail moves from one position to the other. (I'm sure someone who knows more on how it works will explain that better!) 5; a good place to start is that IC usually stands for isolating cock (basically turns that piece of equipment off) and you can usually just about guess the rest.  |
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Post by superteacher on Oct 11, 2011 19:12:10 GMT
3; that will be the points changing - air is released from the points as the rail moves from one position to the other. (I'm sure someone who knows more on how it works will explain that better!) 5; a good place to start is that IC usually stands for isolating cock (basically turns that piece of equipment off) and you can usually just about guess the rest. Most points on the Central are electrically operated and therefore do not hiss - I think Marble Arch is one of the few places on the line that still has air operated points - the hiss referred to in the OP is from the train when the signal clears. Not sure what that its to be honest - possibly partial release of the brakes prior to departure? Trains terminating at South Woodford run direct into Woodford sidings via no. 21 road. This usually happens in service disruptions when they try to get some trains away into sidings in order to clear the backlog. The master selector switch has the following positions: Off Restricted Manual Coded Manual Automatic The Waterloo and City uses Coded Manual for normal driving - the W&C trains are modified to allow driving in this mode without codes. This is how the 92 stock on the Central was driven prior to ATP being introduced. |
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Tom
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Post by Tom on Oct 11, 2011 19:32:43 GMT
Most points on the Central are electrically operated and therefore do not hiss - I think Marble Arch is one of the few places on the line that still has air operated points - the hiss referred to in the OP is from the train when the signal clears. Not sure what that its to be honest - possibly partial release of the brakes prior to departure? The only air operated points on the line are at Queensway, Marble Arch, British Museum, Liverpool Street and one set at Bethnal Green. Otherwise, all-electric or electro-hydraulic operation. I think it's got something to do with ATP code being re-established to the train, but not sure what on the train does it. |
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Post by Deleted on Oct 11, 2011 19:46:46 GMT
On the selector switch question the reason I asked it is I was wondering is there no reverse setting similar to say the C stock?
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Post by superteacher on Oct 11, 2011 19:53:15 GMT
Most points on the Central are electrically operated and therefore do not hiss - I think Marble Arch is one of the few places on the line that still has air operated points - the hiss referred to in the OP is from the train when the signal clears. Not sure what that its to be honest - possibly partial release of the brakes prior to departure? The only air operated points on the line are at Queensway, Marble Arch, British Museum, Liverpool Street and one set at Bethnal Green. Otherwise, all-electric or electro-hydraulic operation. I think it's got something to do with ATP code being re-established to the train, but not sure what on the train does it. Out of interest, why were all points not converted to electric operation? |
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Post by Deleted on Oct 13, 2011 3:45:09 GMT
3. Marble Arch has a wonderful "clunk" when the points go over. The hiss is the brake release.
4. Going clockwise from 9 o'clock. Select, Reverse, Inter, Forward, Coded Manual, Auto.
On the W&C we use Coded Manual while running, Forward (Resticted Manual) going in and out of the sidings, Inter to do the brake test.
8. You can twist the deadman 90 degrees in either direction but not while the TBC is stowed for Auto. It only twists when it's unstowed for Manual working.
9. The one at Hainault inner off Platform 2 is a good one.
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Phil
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Post by Phil on Oct 13, 2011 6:13:56 GMT
5. There are stickers above some seats with stuff like EPBIC and DML I know this refers to what equipment is underneath, but can anyone tell me what they stand for? We don't allow posting of this sort of info in here - could be "of use" to nefarious types. You may find the answers elsewhere on the net but our rules preclude it. Sorry. |
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Post by auxsetreq on Oct 13, 2011 9:31:06 GMT
3. 9. The one at Hainault inner off Platform 2 is a good one. Oh, yeah, forgot that one. Without doubt the worst - Get on with a cup of red hot coffee, make one's announcement to Miss Tree Chopper, replace handset, start train, BIG lurch, handset pings off knocking steaming cup of coffee off shelf and spilling it all down one's leg.............Just hope the PA has cancelled out, or Miss Tree Chopper will be treated to some choice words........... |
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Deleted
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Post by Deleted on Oct 13, 2011 19:03:59 GMT
5. There are stickers above some seats with stuff like EPBIC and DML I know this refers to what equipment is underneath, but can anyone tell me what they stand for? We don't allow posting of this sort of info in here - could be "of use" to nefarious types. You may find the answers elsewhere on the net but our rules preclude it. Sorry. Sorry, didn't know! And platform 2 would be going towards Woodford? That's where I mostly notice it. |
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Post by Deleted on Oct 14, 2011 4:28:06 GMT
Sorry, didn't know! And platform 2 would be going towards Woodford? That's where I mostly notice it. Yes, that's the one, middle road on the inner, next stop Grange Hill, etc. |
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Post by Deleted on Oct 17, 2011 19:11:04 GMT
On video 225's drivers eye view going from WER-WOO there are a number of spots where you hear the driver press the ATO start buttons, the motor starts but it takes a couple of seconds to kick in follwed by a *slam!* and the train violently lurches forward. Happens at West Ruilslip, Northolt (EB) among other places.
Quite an interesting DVD as it was filmed back in 2002 so you get to see the train doing the full whack 100kph, swaying and jolting about like theres no tomorrow. Its a wonder they were ever allowed to go that fast.
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SE13
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Post by SE13 on Oct 17, 2011 19:38:26 GMT
We don't allow posting of this sort of info in here - could be "of use" to nefarious types. You may find the answers elsewhere on the net but our rules preclude it. Sorry. Sorry, didn't know!
If you're in any doubt, just ask a staff member, we don't bite. Honest! |
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Post by Deleted on Oct 21, 2011 15:27:30 GMT
Tom
I thought Bethnal Green was now 4ft Surelocks?
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Tom
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Post by Tom on Oct 25, 2011 22:22:07 GMT
Yes, but one end only.
That particular project was one I'd rather not repeat!
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Post by S&E on Oct 29, 2011 1:41:33 GMT
Yes, but one end only. That particular project was one I'd rather not repeat! You never know, we may finish down there one day... |
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