The last census?
T i m wrote:
Was it just one camera for all lanes, in which case it might be down
to an operator looking at the road-markings or if a camera per lane,
then the cameras themselves (with support from the markings)?
I think camera per lane above, flash was certainly "from above", though
some gantries on that stretch have two cameras at the side of the road
looking at all lanes.
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