Out of interest, is there any data on average speeds before introduction of 20mph zones and then after ? Also interested to see if it effects the outliers who where breaking the previous speed limits anyway
There's some, there used to be loads on the 20's Plenty site, but they have recently revamped it and while you can still access the old site, I can't find the reports section that used to be there and they don't seem to have moved the content. I'll try to dig something up later.
Out of interest, is there any data on average speeds before introduction of 20mph zones and then after ? Also interested to see if it effects the outliers who where breaking the previous speed limits anyway