Only problem with radii and cheap Government software is what if there's a 3 mile wide river estuary between the outbreak and you, and its about 50 miles by road to the infected site?
Apparently supermarkets use the same software, local Aldi shops ended up with Welsh Christmas signage one year....
ION
Almost didn't arrive back safely from scavenging. A bluddy LEMMING pulled out of a side road in front of me, didn't even look in my direction when I hooted at him. Deaf as well as blind, I suppose. Last seen he was dawdling at about 40mph on the motorway...