A very tricky situation Hannes. The law is the law, but thankfully it prevents people to be relocated against their will. Not a lot of land around the cities are available and and if they want to move people to higher ground far away from their work places, then the people simply refuse to go.
Restricted areas are simply occupied and there is nothing that the government can do about it.
So it's a catch 22 situation.
!Cheers and thanks.