What's this? (not a datum plate)

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ABB125

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I spotted this small, reflective green target attached (by what looks a bit like a splodge of chewing gum!) to a lamp post at Stapleton Road station a few days ago. Does anyone know what it's for? I'm guessing some sort of surveying feature?

IMG_8605 (Medium).JPGIMG_8606 (Medium).JPG

Thanks very much.
 
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RailUK Forums

GB

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It is for surveying works...there is even a surveying email address printed on it.
 

Boodiggy

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It is a standard / basic target used for surveying. It is more than likely being used to check for movement from a fixed datum point..
We sometimes use them on weak embankments to check track movement but you can easily fix them to most things.
 
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