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ATO
Aug 14, 2008 12:56:24 GMT
Post by programmes1 on Aug 14, 2008 12:56:24 GMT
I have been told that the extension runs automatically? is this true I did not think that ATO was yet commissioned only being tested at the Stanmore end.
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ATO
Aug 14, 2008 12:59:42 GMT
Post by superteacher on Aug 14, 2008 12:59:42 GMT
No, it's still manual driving throughout the Jubilee, although they have been testing trains in ATO mode, but only during engineering possesions.
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ATO
Aug 14, 2008 13:03:36 GMT
Post by programmes1 on Aug 14, 2008 13:03:36 GMT
Thanks that's what I thought someone trying to lead me a stray.
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Deleted
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ATO
Sept 2, 2008 19:58:18 GMT
Post by Deleted on Sept 2, 2008 19:58:18 GMT
No, it's still manual driving throughout the Jubilee, although they have been testing trains in ATO mode, but only during engineering possesions. Are you sure about that? I'm under the belief that they are testing ATP not ATO. I don't think that ATO is anywhere near ready (not even at the test stage) |
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ATO
Sept 3, 2008 21:06:53 GMT
Post by superteacher on Sept 3, 2008 21:06:53 GMT
No, it's still manual driving throughout the Jubilee, although they have been testing trains in ATO mode, but only during engineering possesions. Are you sure about that? I'm under the belief that they are testing ATP not ATO. I don't think that ATO is anywhere near ready (not even at the test stage) Maybe Towerman could verify this? |
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towerman
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ATO
Sept 3, 2008 21:48:06 GMT
Post by towerman on Sept 3, 2008 21:48:06 GMT
Far as I know none of the ATO kit is commissioned yet,if you see my posting about the Christmas shutdown on the Jubilee,this is to run test trains although whether it's 2 or 3 trains or a full blown test of the 30tph service we won't know till we see the EWSAs & engineering notices nearer the time.
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Deleted
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ATO
Sept 29, 2008 21:03:49 GMT
Post by Deleted on Sept 29, 2008 21:03:49 GMT
Far as I know none of the ATO kit is commissioned yet,if you see my posting about the Christmas shutdown on the Jubilee,this is to run test trains although whether it's 2 or 3 trains or a full blown test of the 30tph service we won't know till we see the EWSAs & engineering notices nearer the time. Its only the early stages of testing so 2 or 3 trains most likely and only on the east end. Definitely not a full service. Closure at the other end of the line is for installing more new kit. |
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ATO
Sept 29, 2008 22:23:20 GMT
Post by londonstuff on Sept 29, 2008 22:23:20 GMT
Sorry all, what's the difference between ATO (presumably Automatic Train Operation, like on the Central?) and ATP?
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mrfs42
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ATO
Sept 29, 2008 22:41:49 GMT
Post by mrfs42 on Sept 29, 2008 22:41:49 GMT
One letter in the alphabet?  O = operation - how fast you can go. P = protection - where you'll be stopped. |
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Deleted
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ATO
Sept 30, 2008 17:47:43 GMT
Post by Deleted on Sept 30, 2008 17:47:43 GMT
Sorry all, what's the difference between ATO (presumably Automatic Train Operation, like on the Central?) and ATP? ATP (for the Jubilee) will be where the train op is driving based on in cab signalling indications provided by the central control system (and protected by the signalling) ATO is where the train itself is driving based on instructions from the central control system. The same movement authorities, max speeds etc. will be provided regardless of whether the train is in ATP or ATO. The only difference will be the reaction time (or tolerance) for the train op to respond to the in cab signalling. |
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ATO
Feb 2, 2009 13:51:13 GMT
Post by DrOne on Feb 2, 2009 13:51:13 GMT
Can ATP allow a higher frequency than the existing system?
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Colin
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ATO
Feb 2, 2009 14:37:03 GMT
Post by Colin on Feb 2, 2009 14:37:03 GMT
Not on it's own, no.
You need the ATO element as well because that will drive the train at limits a human wouldn't dare go - it's able to do this because of the information it gets from the ATP system.
The only way signalling (the ATP bit if you like) would make a difference on it's own is if it were 'moving block' (the gaps between the trains move with the trains) - AFAIK, the system being used on the Jubilee is the same as the current Central & Victoria line systems [and all other lines]: fixed block (signalling sections are fixed regardless).
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ATO
Feb 2, 2009 15:13:38 GMT
Post by cetacean on Feb 2, 2009 15:13:38 GMT
The Jubilee system is moving block Seltrac 40, the same as the DLR, and completely different from the Central Line and Victoria Line systems. In theory at least it should offer significant headway improvements over fixed block, if they can get it working.
And to get the definitions clear:
ATP is the system that transmits movement authority (red and green signals in fixed block systems; or clear distance ahead in moving block systems) to the train, and stops the train if the authority is exceeded. It can also do things like stopping the train if it exceeds speed limits.
ATO is the system that drives the train automatically - accelerating smoothly from stations and slowing down for the next one, plus slowing down for speed limits. You need ATP before you can have ATO, so that the ATO system knows when it needs to stop or slow down, and also to protect the train if the ATO goes haywire.
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ATO
Feb 2, 2009 16:00:08 GMT
Post by d7666 on Feb 2, 2009 16:00:08 GMT
ITYF after full ATP then ATO there is possibly a further step where the traction packs on the trains are screwed open a bit more for enhanced acceleration and regenerative breaking. Timings come down hence TPH goes up.
--
Nick
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ATO
Feb 2, 2009 17:38:44 GMT
Post by DrOne on Feb 2, 2009 17:38:44 GMT
I see. Thanks for the clarification  |
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Chris M
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ATO
Feb 2, 2009 18:56:19 GMT
Post by Chris M on Feb 2, 2009 18:56:19 GMT
ITYF after full ATP then ATO there is possibly a further step where the traction packs on the trains are screwed open a bit more for enhanced acceleration and regenerative breaking. Timings come down hence TPH goes up. -- Nick Just in case anyone is unfamiliar with the acronyms here - ITYF = I Think You'll Find ATP = Automatic Train Protection ATO = Automatic Train Operation TPH = Trains Per Hour |
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ATO
Feb 2, 2009 21:14:33 GMT
Post by DrOne on Feb 2, 2009 21:14:33 GMT
Thanks, was wondering about the ITYF |
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