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Home > How it Works > What are the posts by road junctions that look like solar panels?

What are the posts by road junctions that look like solar panels?

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Dolly Bird | 10:22 Fri 18th Aug 2006 | How it Works
4 Answers
What are the posts with a flat, tilted panel on top that look like solar panels near to roads ?
What are these and what are they for?
I have only ever noticed them near slip roads.
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Avatar Image teag1rl
At a junction it might be a solar powered air quailty monitoring device? Job to know really, as all sorts of things can be solar powered. Road signs included
12:29 Fri 18th Aug 2006
Avatar Image Littlejohn
They ARE solar panels, used for road signs that flash a message like "too fast" or "30" when a car is detected at a higher speed.
There are even a few around with little wind generators on them !
12:34 Fri 18th Aug 2006
Avatar Image DiscoStu
We've got one in a layby between two nearby towns that powers the BT phone box.
14:11 Sun 20th Aug 2006
Avatar Image Dolly Bird
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Thanks guys i can now sleep easy!
21:49 Mon 21st Aug 2006

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