|
|
Post by dazzmcguinness on Feb 23, 2011 0:39:25 GMT
Hi guys
Does anyone know what caused the flooding at Stockwell station last week (I think it was Thursday)?
I'm trying to follow it up but haven't yet got anywhere with TfL, unsurprisingly, and it happened to coincidentally occur at the same time as 'signal failures'.
'McGuinness
|
|
|
|
Post by Tubeboy on Feb 23, 2011 4:17:24 GMT
Problem with a mains pump, the signals then failed.
|
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on Feb 23, 2011 11:09:43 GMT
I'm not an expert in signalling, but water and electricity don't mix really well and signals are operated by electricity. Therefore an excess of water can very readily cause a signal failure.
|
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on Feb 23, 2011 12:33:26 GMT
I'm not an expert in signalling, but water and electricity don't mix really well and signals are operated by electricity. Therefore an excess of water can very readily cause a signal failure. The classic sign of flooded track is a "bobbing" signal, going from red to green and back as the fluctuating water level shorts the circuit. |
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on Feb 23, 2011 14:47:49 GMT
It was last Thursday. I arrived at Angel from the south during the peak of it and had to enquire about how services from the north were affected. However, it turned out not to affect my plans too much.
I always work on the assumption that flooding causes signal failure and in some areas is quite likely to happen.
|
|
|
|
Post by dazzmcguinness on Mar 3, 2011 22:03:43 GMT
Nice one, cheers guys.
It seemed odd when that sort of signal failure appears to occur regularly that the driver said 'flooding' rather than 'signal failure' so quickly after the announcement.
'McGuinness
|
|
