Two rubber lines on road - what are they?
Discussion
Probably the wrong section for this question but does anyone know what the two rubber lines are that keep appearing on different roads on my commute to work? Are they counting quantity/density of traffic or measuring traffic speed? They always seem to be plugged in to a little grey box padlocked to some other road furniture.
hmm so they measure speed. I thought they might. They seem to be in the new(ish) 50 limits around us. Are they checking the proles are sticking to the new limits? Is it childish that I try to go as quickly over them as possible (naturally only when safe to do so and wouldn't dream of doing it if they were in a built up area).
These all seem to be appearing on open, straight, non-urban stretches of A-road that used to be NSL until a few years ago with good visibility. Hoping it might help prove that the reduction to a 50mph limit is unnecessary? Very, very few cars seem to travel at the 50 limits around us and those that too stay at 50 even when it goes in to the NSL so I assume they don't really know the speed limit anyway. Do they still review limits based on percentiles, or is that a one way thing i.e. if its lower they will lower the limit but if higher they leave it as is?
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