David Johnson wrote in message
om...
I recall riding a bus on a freeway in South Korea some years ago, and was
surprised to pass over a section of it painted with runway markings. I
guess
they were planning to use it for military purposes when the North invades.

Yes, South Korea has several dispersal strips built into the highways, for
use in a war (spreading the aircraft out to the small highway strips makes
it harder to knock them out all at once on the ground). I believe Sweden
has a similar strategy.