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Post by superteacher on Apr 18, 2008 9:18:44 GMT
A couple of points:
Why are these being replaced at certain stations - they are only about 10 years old!
When they display certain messages, can these be controlled locally. For example. there was one saying "Welcome to St Pauls station."
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Post by Deleted on Apr 18, 2008 9:43:11 GMT
A couple of points: Why are these being replaced at certain stations - they are only about 10 years old! When they display certain messages, can these be controlled locally. For example. there was one saying "Welcome to St Pauls station." And which station was displaying this message? Ruislip, perhaps??  |
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Post by Deleted on Apr 18, 2008 11:11:08 GMT
The current system on the Central Line allows anybody with a log in and password to insert their own message onto the dot matrix displays.
Very Handy when the last train had gone.
The DMI's are being replaced as they are scheduled to be done under the PPP when a station is refurbished. If they weren't in the scope of the PPP you'd have the current displays for another 20 odd years.
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Ben
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Post by Ben on Apr 18, 2008 13:57:49 GMT
Are they being pitched or resued? Seems a waste of money to throw away still working stuff.
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Post by jamesb on Apr 18, 2008 14:01:30 GMT
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Post by superteacher on Apr 18, 2008 14:54:57 GMT
It's a shame, because the Central line ones are unique in being able to display 3 colours. There are some though, at West Acton and Ruislip Gardens for example, that can only show red. I always wondered why these ones were different, since you would have thought there would be a standard order for the whole iine.
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Chris M
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Post by Chris M on Apr 18, 2008 15:13:28 GMT
There's one station, I think possibly Edgware Road SSL where one platform has a yellow DMI and the adjacent platform has a red one.
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Post by Deleted on Apr 18, 2008 21:40:32 GMT
Are they being pitched or resued? Seems a waste of money to throw away still working stuff. It's often better to replace things before they start failing, than after they start failing. They may only have been around for 10 years, but 10 years is still a long time for electronic products. |
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Post by superteacher on Apr 19, 2008 11:11:54 GMT
Are they being pitched or resued? Seems a waste of money to throw away still working stuff. It's often better to replace things before they start failing, than after they start failing. They may only have been around for 10 years, but 10 years is still a long time for electronic products. On that basis, the 92 stock is due for replacement then! ;D ;D |
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Post by North End on Apr 19, 2008 13:57:15 GMT
It's a shame, because the Central line ones are unique in being able to display 3 colours. There are some though, at West Acton and Ruislip Gardens for example, that can only show red. I always wondered why these ones were different, since you would have thought there would be a standard order for the whole iine. I believe the West Acton ones were some kind of trial or prototype - I recall it's mentioned in an Underground News magazine from the time. As far as displaying local messages goes, you've answered your own question - Station Supervisors can gain access to the system and display their own messages (as well as other things like change the colours, etc), however hardly anyone knows how to do it. |
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Post by Deleted on Apr 22, 2008 18:43:05 GMT
it is edgware road (ssl) which has the different colour lL.E.D board fitted
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Post by railtechnician on Apr 23, 2008 12:57:16 GMT
it is edgware road (ssl) which has the different colour lL.E.D board fitted My vague recollection from many years ago now is that Edgware Road became a trial site after its DMI failed due to the constant sunlight 'washing out' and permanently fading the original orange display cells. I think it was the first site that I saw a DMI with bright red and sunlight resistant cells. |
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Ben
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Post by Ben on Apr 23, 2008 16:02:30 GMT
Fair point with the electronic products comment. How does the cost of construction and installation compare with something non electronic, like a lit destination box? I assume buying and replacing an electronic destination box every ten years over a 50 year period is still cheaper than making something so archaic?
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Post by ruislip on Apr 23, 2008 20:54:16 GMT
On that basis, the 92 stock is due for replacement then! ;D ;D Hasn't that been the consensus ever since it was introduced on the Central Line ;D  |
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Post by happybunny on Apr 23, 2008 21:25:40 GMT
I always remember .. years ago... the one at Queensway ( I think ) being quite odd.. it had about 4 writings of text, smaller than the usual screens and always displayed no smoking at all times.. there were lots of different colours on it.. does anyone else remember this?
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Post by Deleted on Apr 26, 2008 0:34:06 GMT
See what would save them even more money would be to have the same indicators as they have at West Kensington.
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Post by Deleted on Apr 26, 2008 12:53:27 GMT
I've certainly never known the West Ken indicators to be wrong...
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