Quote Originally Posted by Eric the Half a Bee View Post
The primary reason the Welsh Government keep saying is a reduction in fatalities and serious injuries, reducing the pressures on the NHS. I understand that 20mph in 3rd gear produces the same emissions as 30mph in 4th as revs are virtually the same.

In the link I provided earlier, Professor Cole says one reason for the speed reduction is to make car travel less attractive. In other words, the Welsh Government know that we can't keep putting more and more cars on the roads and this will hopefully result in fewer car journeys.
Thanks for that Eric, Yup, you're spot on. i did 5 minutes of research and came up with the same answers you gave. There was some interesting stuff tat showed evidence towards people walking their kids to school more, now that the speed reduction had been reduced, and an increase in cycling.