Sounds like a very silly way of wasting a huge amount of money.
Think about where a lot of our migrants and tourists come from - UK, South Africa, Australia, Japan
The costs of remodelling intersections would be huge.
The would undoubtedly be a transitional increase in road toll
And I can't let it go - Defence equipment is used every day, to make our environment and that of our allies more secure. I know this is off topic but it's annoying when posters (one in particular) slip in anti-government or other political messages into posts