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Post by dangeruxb on Sept 6, 2011 14:07:00 GMT
Im presuming its due to the S Stock trains but Ive noticed on many platforms (Moorgate a prime example) these small silver boxes with orange lenses attached to the pillars alongside the Platform.
Are they to do with the doors for selective opening?
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Post by radbod on Sept 6, 2011 16:04:05 GMT
They monitor for movement during construction - typically for subsidence. Moorgate will no doubt be due to Crossrail tunnelling.
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Post by br7mt on Sept 6, 2011 21:01:10 GMT
Also the escalator shafts at Bond Street.
Regards,
Dan
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Post by citysig on Sept 7, 2011 10:02:53 GMT
King's Cross national rail is covered in them - and if an S-stock turns up there I'll... well I'm not saying as these things tend to come back and bite one on the backside ;D
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