You're not really comparing like with like there. Northern France has far more space and nobody lives there - it's hardly a surprise they can get things done quickly in that part of their country. On the other hand, the M/A23 is the main trunk road between the capital city and a southern city of 300,000 people.This is what makes me laugh in this country. August 2014. I think the French built their high speed line from the Channel Tunnel to Paris in this time.
We're perfectly capable of building things on time here. Look at the Olympic park - built comfortably on time and under budget, and that's in central London!