All joking aside, next April Cornwall Council are introducing 20 mph limits in all villages and small towns as a blanket limit.
I personally think they are just anti car, having got into bed with some campaigning anti car, left wing mob.
When challenged they couldn't come up with any accident figures that had increased, to justify the introduction, preferring instead to qoute figures re accidents in other parts of the country.
We then of course had the green argument, which didn't seem to stack up re emissions at the lower speed.