solar panel highways
Posted February 17, 2010
By admin
There are squares embedded into highways around The Province of Saskatchewan, Canada. What are they?
They are in groups of four, under the asphalt of the Highway and have buried cables connecting them, which lead to some sort of box at the edge of the ditch and it has a solar panel for power.
I don’t get what their purpose is.
Generally they are used to count vehicles as they go by. They detect large metal objects that pass over them.
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