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Post by q8 on Aug 16, 2005 10:40:20 GMT
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Post by Deleted on Aug 16, 2005 11:36:05 GMT
Very informative Q8
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Post by russe on Aug 16, 2005 12:19:24 GMT
Great stuff, Q8. I think this ties in nicely with the WBWC diagram posted by Harsig a few days ago.
- Can the icon (7 March 1961) at the bottom of the last page be taken as the introduction of such signals?
- Anyone got a picture of the speed restriction indicators?
- Was the District the first to adopt such a system?
Russ
P.S. Who was the 'R.T.C.'?
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Post by piccadillypilot on Aug 16, 2005 13:30:56 GMT
P.S. Who was the 'R.T.C.'? To those of a certain age the RTC is "the school", or more correctly, "The Railway Ttraining Centre". Formerly at White City on the site of the current signalling centre (I think) it was the central facility for all classroom based instruction. Amongst other delight was a Gauge 1 model railway with A stock units trundling around for the instruction of signalmen and to give traincrew some insight. |
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Post by citysig on Aug 16, 2005 16:10:13 GMT
Amongst other delight was a Gauge 1 model railway with A stock units trundling around for the instruction of signalmen and to give traincrew some insight. That's A-stock units trundling around under the instruction of signalmen. Even when we're being taught, we never let trains get above their station (excuse the pun). Like the slight stutter on the word Training by the way. I used to stutter when I heard I had 6 weeks up there on a Booking Clerks course ;D |
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Post by q8 on Aug 16, 2005 16:43:19 GMT
- Can the icon (7 March 1961) at the bottom of the last page be taken as the introduction of such signals?.......I should think so yes.
- Anyone got a picture of the speed restriction indicators? ....Probably not as they were ALL in dark parts of the tunnels
- Was the District the first to adopt such a system?..............The DR was the first to get them but the method was different (and more expensive)
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Post by q8 on Aug 16, 2005 19:20:46 GMT
Like the slight stutter on the word Training by the way. I used to stutter when I heard I had 6 weeks up there on a Booking Clerks course ;D
------------------------------------------------------------------------
I detested the bloody place. Had me own back one day though when asked during an oral lesson "What steps would you take in case of fire" To which I replied "F*cking great big ones"!!
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Post by zman on Aug 17, 2005 0:24:02 GMT
They're called "Station Time Signals" here. Thing here is that one NEVER goes the posted speed for ST signals, you usually do half the posted speed or less. Otherwise, you're 100% guaranteed to overrun the signal.
Was it the same with LUL as well, or did the signals actually clear at 25, 20, etc.?
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Post by q8 on Aug 17, 2005 4:35:10 GMT
No they actually worked here zman. On the District line at least. This was because the shoe activated instantaneous speed detector mentioned was used on that line. On the tube lines timing track circuits were used with the results you get in NY. As a result the reason they were put in was negated.
On the DR if you did PRECISLEY what it says in the leaflet (wether approaching or leaving the station) you could indeed make a textbook entry exactly as shown. Not all stations had the same number of approach signals. Sloane Square eastbound had 7. St James'es Park had 9 and Embankment 8. There was one strange quirk with them though. If you were approaching and had slowed to 25 and cleared the 1st signal and the guy in front of you had started to leave and put the starting signal to danger all the signals from "C" onward would remain at red until he had completely left the station and then all clear simultaneously.
When they were first put in, and before the mod was installed, if you slowed down too much at the speed signs the signals would clear and then go back in your face. You had to be doing EXACTLY the speed indicated on the illuminated sign, and without a speedo in a dark tunnel that is hard to judge.
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Harsig
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Post by Harsig on Aug 17, 2005 10:19:57 GMT
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Post by q8 on Aug 17, 2005 16:53:59 GMT
Yes Harsig I have seen that booklet and used to have it but don't know what I did with it. It had the signal aspects in colour too and had a pale green cover. It was a a tallish little publication. I did not realise that it dated that early. But it did have the usual "Not be published " etc blurb all over it.
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Post by Deleted on Aug 21, 2005 22:18:25 GMT
Amongst other delight was a Gauge 1 model railway with A stock units trundling around for the instruction of signalmen and to give traincrew some insight. That's A-stock units trundling around under the instruction of signalmen. Even when we're being taught, we never let trains get above their station (excuse the pun). Must just mention that real A-stock is under the control of drivers (like moi). Thinking of all those times I've been held on the homes, with an empty platform and nothing in the way, I wish that Gauge 1 model railway was still around!! ;D |
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Post by Deleted on Aug 21, 2005 22:57:55 GMT
There's one at the NRM... Might not be the LU one though...
Sam
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