Deleted
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Post by Deleted on Jul 8, 2014 19:26:19 GMT
When were the 'Station Closed 5MPH' signs introduced to stations?
Was it introduced because of the Moorgate Accident in 1975?
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Post by crusty54 on Jul 9, 2014 6:10:07 GMT
When were the 'Station Closed 5MPH' signs introduced to stations? Was it introduced because of the Moorgate Accident in 1975? No connection whatsoever |
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neilw
now that's what I call a garden railway
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Post by neilw on Jul 9, 2014 7:44:39 GMT
the requirement to slow to 5mph up to the station starter is because of "compromised" overlap distances on said starter. As all trains would normally stop, there is little need to have an overlap on the starter which accommodates full line speed. This enables the signalling to be squeezed up, allowing trains to be closer together at stations, thus allowing one train to run in as the proceeding one runs out. There would potentially be a risk if a train were to pass through a station at higher speed and another train had stopped just out of the station.
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Deleted
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Post by Deleted on Jul 9, 2014 11:16:46 GMT
Three topics on station closed signs?
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Deleted
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Post by Deleted on Jul 9, 2014 15:44:45 GMT
This is NOT the answer to my question. I am asking when the Station Closed 5MPH sign boards were introduced?
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Deleted
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Post by Deleted on Jul 9, 2014 17:15:48 GMT
This isn't the answer to your question either.
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Post by crusty54 on Jul 9, 2014 17:47:11 GMT
Sometime in the late 80s
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Deleted
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Post by Deleted on Jul 9, 2014 18:14:50 GMT
Really?
I thought it was introduced in the 20s
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hobbayne
RIP John Lennon and George Harrison
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Post by hobbayne on Jul 9, 2014 20:48:57 GMT
Three topics on station closed signs? Agreed. Time for a merge methinks |
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Post by crusty54 on Jul 10, 2014 5:11:26 GMT
Really? I thought it was introduced in the 20s The wall mounted boards were introduced in the 1980s. |
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Deleted
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Post by Deleted on Jul 10, 2014 5:45:47 GMT
What about the fold outs that you put on the platform edge?
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Post by jamesb on Jul 18, 2014 7:19:54 GMT
I'm surprised in this day and age why the signs have't been replaced by an electric sign similar to the 'emergency do not enter' boards at station entrances...
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Post by John Tuthill on Jul 18, 2014 7:39:47 GMT
I'm surprised in this day and age why the signs have't been replaced by an electric sign similar to the 'emergency do not enter' boards at station entrances... Probably because people will just ignore them. (Think of Wet Paint signs) A few years ago the company I worked for we installed "FIRE ALARM ACTIVATED DO NOT ENTER" signs above connecting doors to an adjacent building. The signs were 1000mm wide they flashed and had an internal buzzer, and yes people ignored them. I did suggest a trap door on the other side, but it wasn't taken up. |
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Post by phillw48 on Jul 18, 2014 9:04:10 GMT
I'm surprised in this day and age why the signs have't been replaced by an electric sign similar to the 'emergency do not enter' boards at station entrances... Probably because people will just ignore them. (Think of Wet Paint signs) A few years ago the company I worked for we installed "FIRE ALARM ACTIVATED DO NOT ENTER" signs above connecting doors to an adjacent building. The signs were 1000mm wide they flashed and had an internal buzzer, and yes people ignored them. I did suggest a trap door on the other side, but it wasn't taken up. Should have proposed a flamethrower, they might then get the point.  |
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Post by John Tuthill on Jul 18, 2014 9:57:57 GMT
Probably because people will just ignore them. (Think of Wet Paint signs) A few years ago the company I worked for we installed "FIRE ALARM ACTIVATED DO NOT ENTER" signs above connecting doors to an adjacent building. The signs were 1000mm wide they flashed and had an internal buzzer, and yes people ignored them. I did suggest a trap door on the other side, but it wasn't taken up. Should have proposed a flamethrower, they might then get the point. Naah, never get passed H&S. |
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Post by crusty54 on Jul 19, 2014 12:54:24 GMT
I'm surprised in this day and age why the signs have't been replaced by an electric sign similar to the 'emergency do not enter' boards at station entrances... No need to complicate things. A simple solution that works. Low maintenance and can be seen clearly. |
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Deleted
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Post by Deleted on Jul 30, 2014 20:56:19 GMT
Whats the point of the flashing orange light on the sign?
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Post by jamesb on Jul 31, 2014 0:26:19 GMT
Thats true but the only advantage is that at the touch of a button, all the signs would come on immediately and not require station staff to open up the boards. This may prevent a driver accidentally offloading passengers in the early stages of a fire alarm activation before the boards have been opened up. Granted the driver is also communicated with by radio directly from the line controller. My lay understanding is that they are for the attention of the train operator, not passengers, so there isn't a risk of people ignoring them. But the boards do the job, I agree... I'm surprised in this day and age why the signs have't been replaced by an electric sign similar to the 'emergency do not enter' boards at station entrances... No need to complicate things. A simple solution that works. Low maintenance and can be seen clearly. |
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Tom
Administrator
Signalfel?
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Post by Tom on Jul 31, 2014 5:56:43 GMT
the requirement to slow to 5mph up to the station starter is because of "compromised" overlap distances on said starter. As all trains would normally stop, there is little need to have an overlap on the starter which accommodates full line speed. This enables the signalling to be squeezed up, allowing trains to be closer together at stations, thus allowing one train to run in as the proceeding one runs out. There would potentially be a risk if a train were to pass through a station at higher speed and another train had stopped just out of the station. There is a bit more to it than that, related to the potential speed attained at the starter if it were clear and the consequences for other overlaps. |
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Deleted
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Post by Deleted on Jul 31, 2014 21:32:49 GMT
I was on the Bakerloo line passing through Embankment and I noticed the station closed sign had bits of wire on it connected from (I think) the flashing orange light to some panels on the ceiling of the platforms. I also noticed this as well at Gloucester road (Piccadilly line) with the station closed sign. I tried asking a station assistant and he told me it was due to works (Obviously). I was unsure of that but anyway, is he right or is it something completely different?
If I compare it to a station being temporarily closed maybe due to an emergency, there is no wiring from the flashing orange light to some panels above.
Quite confusing (scratching my head)
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Post by jamesb on Jul 31, 2014 22:17:22 GMT
Is the flashing light connected to the mains if it is in use for a prolonged period to stop the battery going flat? I was on the Bakerloo line passing through Embankment and I noticed the station closed sign had bits of wire on it connected from (I think) the flashing orange light to some panels on the ceiling of the platforms. I also noticed this as well at Gloucester road (Piccadilly line) with the station closed sign. I tried asking a station assistant and he told me it was due to works (Obviously. I was unsure of that but anyway, is he right or is it something completely different? If I compare it to a station being temporarily closed maybe due to an emergency, there is no wiring from the flashing orange light to some panels above. Quite confusing (scratching my head) |
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Post by crusty54 on Aug 1, 2014 5:40:10 GMT
They wire them up to a 12 volt transformer when stations are closed for project work.
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Deleted
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Post by Deleted on Aug 1, 2014 7:59:42 GMT
Aaaaaaaahhhhhhhhh I see. This make sense now  |
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